Materials Horizons author profile: Jean-Luc Bredas

Materials Horizons Advisory Board member, Jean-Luc Brédas, is the author of the journal’s first Focus article, Mind the gap! Focus articles are educational pieces, intended to explain or clarify topics relevant to the understanding of materials science. In his article, Professor Brédas seeks to clear up the confusion surrounding the many types of energy gap relevant to organic materials, and calls for a more rigorous use of the appropriate terminology. Here we find out more about the author, and why he chose to write this article for Materials Horizons.

Jean-Luc Brédas is Regents’ Professor of Chemistry and Biochemistry at Georgia Institute of Technology. He began his research career at the Université de Namur, Belgium, where he completed a Ph.D. in Theoretical Chemistry.  Since then, he has held positions at Université de Mons, Belgium, the University of Arizona, USA, and King Abdulaziz University in Saudi Arabia. He is the author or co-author of over 950 scientific papers and has presented over 500 invited talks at scientific meetings and seminars.

Professor Brédas has been awarded numerous prizes in recognition of his work, including the Triennal Prize of the Royal Society of Chemistry, Belgium, (1991), the Francqui Prize (1997), the Descartes Prize of the European Commission (2003) and the Georgia Institute of Technology Outstanding Faculty Research Author Award (2008). In 2013, he received the American Physical Society David Adler Lectureship Award in Materials Physics.  He has been a Fellow of the Royal Society of Chemistry since 2008.

The research activities of Professor Brédas’ group are focused on the computational characterization and design of novel organic materials of relevance for organic electronics and photonics.

What was the motivation to write your Materials Horizons Focus article?
There were two major reasons: The first is the original concept behind these Focus articles, which I believe is unique to Materials Horizons. The second is that many of my colleagues and myself were becoming increasingly frustrated by the lack of rigor surrounding the use of common terminologies in materials research articles, in particular with regard to energy gaps and energy levels in electro-active organic materials. Hence, when Seth Marder came to me with a proposition to write such a Focus article, he met no resistance!

At which upcoming conferences may our readers meet you?
In the spring, I’ll participate in SPIE Photonics West in San Francisco, the ACS National Meeting in Dallas, and the MRS Spring Meeting (again in San Francisco).

How do you spend your spare time?
Soccer, or should say much more appropriately football, is my main passion besides science. I still try to play as much as I can especially with my students. Also, I very much enjoy tending to the four fish tanks I have at home, with fish (cichlids) mainly from the Central Africa Lakes: Tanganyika and Malawi.

Which profession would you choose if you were not a scientist?
This is a tough question because I cannot picture myself doing something else really. The fulfillment that scientific research, teaching students, and making friends all over the world bring, would be in my mind very difficult to match. But to answer the question, maybe I’d like to be in the sports business, for instance as a commentator.

Mind the gap!

Jean-Luc Brédas
Mater. Horiz., 2014, 1, 17-19
DOI: 10.1039/C3MH00098B

‘The energy gap is a critical material parameter. Here, we illustrate the concepts behind the various flavors of energy gaps relevant for organic materials and call for a more consistent use of appropriate terminologies and procedures.’

 

 

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Materials Horizons author profile: Stefan Bon

Stefan A. F. Bon is an associate professor in the Department of Chemistry at the University of Warwick, UK. He studied Chemical Engineering at the Technical University of Eindhoven (TUE), the Netherlands (cum laude, 1989-1993). He has a background in the mechanistic and kinetic development of (living) radical polymerizations (1993-2005). Since 2005 he has established himself as an international player in the area of polymer colloids, and continues to innovate in the area of supracolloidal chemistry. Since 2009 he has given more than 70 invited talks. He is an IUPAC fellow, and the current chair of the UK Polymer Colloids Forum (UKPCF) and of the International Polymer Colloids Group (IPCG). 

Why did you choose Materials Horizons to publish your exciting work?
We chose Materials Horizons for this article as we really liked the vision behind this new Royal Society of Chemistry journal in that it focusses on new conceptual insights in material science, spanning across the breaths of all the more traditional disciplines, such as chemistry and physics. Our paper draws from knowledge on sol-gel synthesis, Pickering stabilisation, emulsion templating, uses heterogeneous catalysis, and blends it with physical concepts and understanding on motion on the microscopic scale. Chemotaxis is common in nature and to demonstrate that our matchstick shaped particles could undergo this directional form of self-propulsion was very exciting. This mash-up of scientific disciplines for our work made Materials Horizons THE journal to publish our work in.

How did you find the Materials Horizons publication process?
As can be said for all scientific journals published by the Royal Society of Chemistry, the submission and review process is very professional and fast. I was impressed with the turn around time and the excellent comments of the reviewers made. I also very much value the promotion the Materials Horizons team has done after our paper went live. Thanks very much!

What topics would you like to see covered in future issues of Materials Horizons? Are there any particularly related to Focus articles, which are educational articles, designed to provide the reader with a sense of a concept from an area of materials science?
This is a tough question as material science is broad, but in short: “stuff that amazes the reader” I really hope that the journal becomes a platform for scientific discoveries with a conceptual wow-factor. Adding spatial control to self-assembly of molecules or particles, building a synthetic cell which could operate as a chemical production plant, a flexible solar cell with a life-span of years maintaining high conversion efficiencies, etc
It would be great if Focus articles could report on a topic in a way that it provides an almost synergistic portrait drawn from knowledge of material scientists of different scientific backgrounds.

Tell us more about your research
The BonLab undertakes research through a combination of polymer chemistry, soft matter/fluid physics, and chemical engineering. We study the chemistry and physics of colloidal systems in which molecular and/or colloidal entities can be assembled into more complex supracolloidal structures. We are interested in the synthesis of particles and macromolecules with a design tailored to trigger and control motility and assembly, the development of methods to (self)-organise colloidal matter, the understanding of the interactions involved between molecular and colloidal building blocks and potential macroscopic substrates. We find it important that our technology can be scaled-up and is of use in a variety of industrial applications ranging from sensors and devices, coatings and adhesives, to food, personal care, agricultural and biological systems. The BonLab is predominantly funded by industry to tackle a variety of problems for applications ranging from food, coatings, concrete and adhesives, to personal care formulations, agricultural formulations, and binders and dispersants.

Stephan Bonn’s Communication article Chemotaxis of catalytic silica–manganese oxide “matchstick” particles is free to access online!  

Chemotaxis of catalytic silica–manganese oxide “matchstick” particles
Adam R. Morgan, Alan B. Dawson, Holly S. Mckenzie, Thomas S. Skelhon, Richard Beanland, Henry P. W. Franks and Stefan A. F. Bon  
Mater. Horiz., 2014, Advance Article DOI: 10.1039/C3MH00003F

Silica-based “matchstick” colloids with a catalytic head undergo chemotaxis in water using hydrogen peroxide as the fuel.
 
 
 
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Professor Rao – Bharat Ratna 2014

Professor C. N. R. Rao, one of India’s highly regarded scientists, has been conferred the honour of the Bharat Ratna for 2014.  This is India’s highest civilian award and is seldom awarded.  Professor Rao is the third scientist and first chemist ever to receive the honour.

At an age when other people have relaxed into retirement, Professor Rao still spends several hours a day in his laboratory and has been in the running for a Nobel Prize for many years, showing his dedication and passion for his work.  He also co-authors books with his wife with the aim of making chemistry more accessible for children.  When asked in an interview with New Delhi Television what is required to succeed as a scientist in India, Professor Rao responded “stamina, tenacity, doggedness and perseverance.  Also a little intelligence is useful!”

The Materials Horizons Editorial Office would like to extend our personal congratulations to Professor Rao on his outstanding achievement and take the opportunity to thank him for the work he does as an Editorial Board member for the journal.

For more information on Professor Rao, please read his author profile here.

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Issue 1 of Materials Horizons is now online!

All articles published in Materials Horizons benefit from wide exposure, with free access upon registration to all content published during 2014 and 2015

We are excited to announce that the inaugural issue of Materials Horizons has been published online! Showcasing some of the most exciting research across the breadth of the materials field, issue 1 includes articles such as:

Find the full issue here. We hope you enjoy reading it!

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Introducing Materials Horizons Editorial Board member Jun Chen

Jun Chen is the Chair Professor of energy materials chemistry at Nankai University, the Director of Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), a Chief Scientist of the National Nano Key Science Research, and the Vice Chairman of the Chinese Society of Electrochemistry. He received his B.S. and M.S. degrees from Nankai University in 1989 and 1992 respectively, and his Ph.D. from the University of Wollongong (Australia) in 1999. He held the NEDO fellowship at the National Institute of AIST Kansai Center (Japan) from 1999 to 2002. His research activity focuses on nanomaterials, electrochemistry, batteries, fuel cells and solar cells with efficient energy storage & conversion. He has published over 150 journal papers and has strong links with industry. He is the recipient of a number of awards including the Eward Wicke Award (International Metal Hydride Committee, 2002), the Outstanding Young Scientist Award (NSFC, 2003), the Cheung Kong Scholar Professor (MOE, 2005), the National Natural Science Award (2nd prize, 2011), and the Australia China Alumni Award for Research and Innovation (ACAA, 2012).

Professor Chen’s recent papers include:

Magnesium–air batteries: from principle to application
Tianran Zhang, Zhanliang Tao and Jun Chen  
Mater. Horiz., 2014, Advance Article DOI: 10.1039/C3MH00059A

Arylamine organic dyes for dye-sensitized solar cells
Mao Liang and Jun Chen  
Chem. Soc. Rev., 2013, 42, 3453-3488 DOI: 10.1039/C3CS35372A

Efficient hydrogen storage with the combination of lightweight Mg/MgH2 and nanostructures
Fangyi Cheng, Zhanliang Tao, Jing Liang and Jun Chen  
Chem. Commun., 2012, 48, 7334-7343 DOI: 10.1039/C2CC30740E

Metal–air batteries: from oxygen reduction electrochemistry to cathode catalysts
Fangyi Cheng and Jun Chen  
Chem. Soc. Rev., 2012, 41, 2172-2192 DOI: 10.1039/C1CS15228A

Find profiles of all the Materials Horizons Editorial Board members in our recent Editorial.

Follow the latest journal news on Twitter @MaterHoriz or go to our Facebook page.

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Materials Horizons author profile: Professor Shu-Hong Yu

Prof. Shu-Hong Yu is currently the Head of the Division of Nanomaterials & Chemistry at the Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China (USTC), and the Deputy Dean of the School of Chemistry & Materials, USTC. His research interests include bio-inspired synthesis and self-assembly of new nanostructured materials and nanocomposites, and their related properties. A very recent focus involves the scale-up synthesis of high quality ultrathin nanowires and their macroscopic-scale assembly. Find out more about Shu-Hong Yu’s research by visiting his research lab homepage.

Prof. Shu-Hong Yu has authored and co-authored more than 350 refereed journal publications, and 16 invited book chapters. His work has been cited 11,639 times, and has a h-index of 59. He has supervised 37 PhD students to completion at the USTC and currently supervises or co-supervises 25 PhD students.

Professor Shu-Hong Yu is a Fellow of the Royal Society of Chemistry (FRSC), and serves as an advisory/editorial board member of the journals Chemical Science, Materials Horizons, Nano Research, CrystEngComm, Part. Part. Syst. Charact. and Current Nanoscience. His recent awards include the Chem. Soc. Rev. Emerging Investigator Award (2010) and the Roy-Somiya Medal of the International Solvothermal and Hydrothermal Association (ISHA) (2010).

Why did you choose Materials Horizons to publish your exciting work?
I chose Materials Horizons for this Communication because this journal is a totally new flagship materials science journal launched by a very experienced publisher. I believe that our results published in this emerging journal will receive more exposure and broad attention in the community.

How did you find the Materials Horizons publication process?
The publishing and reviewing process was faster and highly efficient.

What topics would you like to see covered in future issues of Materials Horizons?
I think some coverage of advances in synthetic methodologies of functional nanomaterials, self-assembly and processing of nanoscale building blocks and their practical applications in diverse fields.

Shu-Hong Yu’s Communication article A shape-memory scaffold for macroscale assembly of functional nanoscale building blocks will appear in Issue 1 of Materials Horizons, and is free to access online!

A shape-memory scaffold for macroscale assembly of functional nanoscale building blocks
Huai-Ling Gao, Yang Lu, Li-Bo Mao, Duo An, Liang Xu, Jun-Tong Gu, Fei Long and Shu-Hong Yu
Mater. Horiz., 2014, Advance Article DOI: 10.1039/C3MH00040K

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Introducing Materials Horizons Editorial Board member Yoshio Bando

Yoshio Bando received a Ph.D. degree at Osaka University in 1975 and joined the National Institute for Research in Inorganic Materials (now National Institute for Materials Science, NIMS) in the same year.  He is now a Fellow of NIMS and a Chief Operating Officer (COO) of the International Center for Materials Nanoarchitectonics (WPI-MANA). From 1979 to 1981, he was a visiting scientist at the Arizona State University, USA.  He served as a Professor of Tsukuba University from 1992 to 2008.  Since 2008, he has been an Adjunct Professor at Waseda University.

Yoshio Bando has received a number of awards including the 3rd Thomson Reuters Research Front Award (2012), the 16th Tsukuba Prize (2005), Academic Awards from the Japanese Ceramic Society (1997) and the Seto Award from the Japanese Society for Electron Microscopy (1994).  He is now an adjunct member of the Science Council of Japan and also a Fellow of The American Ceramic Society.  He has been selected as an ISI Highly Cited Researcher in Materials Science.

Professor Bando’s current research concentrates on the synthesis and properties of novel inorganic 1D/2D nanomaterials and their in-situ TEM analysis. His recent papers include:

Controlled synthesis of patterned W18O49 nanowire vertical-arrays and improved field emission performance by in situ plasma treatment
Fei Liu, Tongyi Guo, Zhuo Xu, Haibo Gan, Lifang Li, Jun Chen, Shaozhi Deng, Ningsheng Xu, Dmitri Golberg and Yoshio Bando
J. Mater. Chem. C, 2013, 1, 3217-3225 DOI: 10.1039/C3TC30340C

Ultrathin nanoporous Fe3O4–carbon nanosheets with enhanced supercapacitor performance
Dequan Liu, Xi Wang, Xuebin Wang, Wei Tian, Jiangwei Liu, Chunyi Zhi, Deyan He, Yoshio Bando and Dmitri Golberg
J. Mater. Chem. A, 2013, 1, 1952-1955 DOI: 10.1039/C2TA01035F

Cobalt(II,III) oxide hollow structures: fabrication, properties and applications
Xi Wang, Wei Tian, Tianyou Zhai, Chunyi Zhi, Yoshio Bando and Dmitri Golberg
J. Mater. Chem., 2012, 22, 23310-23326 DOI: 10.1039/C2JM33940D, Feature Article

Find profiles of all the Materials Horizons Editorial Board members in our recent Editorial.

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Materials Horizons author profile: Professor Gordon Wallace

You may have seen Gordon Wallace’s recent Materials Horizons communication on liquid crystalline dispersions of graphene oxide. (If not, take a look here; it’s free to access!) Here, we profile the author, and ask him about his experience with Materials Horizons.

Professor Gordon Wallace is currently the Executive Research Director at the ARC Centre of Excellence for Electromaterials Science and Director of the Intelligent Polymer Research Institute. He previously held an ARC Federation Fellowship and currently holds an ARC Laureate Fellowship. Professor Wallace’s research interests include organic conductors, nanomaterials and electrochemical probe methods of analysis, and the use of these in the development of Intelligent Polymer Systems. A current focus involves the use of these tools and materials in developing bio-communications from the molecular to skeletal domains in order to improve human performance via medical Bionics.

With more than 700 refereed publications, Professor Wallace has attracted some 17,000 citations and has a h-index of 61. He has supervised 77 PhD students to completion at the Intelligent Polymer Research Institute and currently co-supervisors 30 PhD students.

Professor Wallace is an elected Fellow at the Australian Academy of Science, the Australian Academy of Technological Sciences and Engineering, the Institute of Physics (UK) and the Royal Australian Chemical Institute. In addition to being named NSW Scientist of the Year in the chemistry category in 2008, Professor Wallace was also appointed to the Korean World Class University System, and received the Royal Australian Chemical Institute HG Smith Prize.

Why did you choose Materials Horizons to publish your exciting work?
I like the approach that combines education and digestible insights with the forefront of research. More and more I realise the critical need to communicate advances in knowledge emanating from the research laboratory to a broad cross section of our communities as effectively and efficiently as possible.

How did you find the Materials Horizons publication process?
The process was effective and efficient.

What topics would you like to see covered in future issues of Materials Horizons?
I think some coverage of advances in BioAFM would be most timely.

 

Formation and processability of liquid crystalline dispersions of graphene oxide
Rouhollah Jalili, Seyed Hamed Aboutalebi, Dorna Esrafilzadeh, Konstantin Konstantinov, Joselito M. Razal, Simon E. Moulton and Gordon G. Wallace
Mater. Horiz., 2014, Advance Article DOI: 10.1039/C3MH00050H

Manipulation of graphene oxide sheets to form liquid crystalline dispersions enabling fabrication of multifunctional 3D-structures.

 

 

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Materials Horizons – new advanced articles have been published!

All articles published in Materials Horizons benefit from wide exposure, with free access upon registration to all content published during 2014 and 2015

Self-Assembly of Aligned Rutile@Anatase TiO2 Nanorod@CdS Quantum Dots Ternary Core-Shell Heterostructure: Cascade Electron-Transfer by Interfacial Design
Fang-Xing Xiao, Jianwei Miao and Bin Liu

A novel self-assembly approach based on electrostatic interaction has been developed for the synthesis of rutile@anatase TiO2 nanorod (NR)@CdS quantum dots (QDs) ternary core-shell heterostructure, for which in-situ formed monodispersed anatase TiO2 layer was intimately sandwiched between rutile TiO2 NRs and CdS QDs. It has been demonstrated that the well-defined bilayer interface significantly improves the photocatalytic performance of the ternary heterostructure (i.e. rutile@anatase TiO2 NR@CdS QDs), owing predominantly to the appropriate band alignment of constituting semiconductors, thus facilitating photogenerated electron-hole separation and charge collection under simulated solar light irradiation.

 
Mater. Horiz., 2013, DOI: 10.1039/c3mh00097d, Accepted Manuscript


Supramolecular host–guest polymeric materials for biomedical applications
Xian Jun Loh

The bottom–up synthesis of highly complex functional materials from simple modular blocks is an intriguing area of research. Driven by the chemistry of supramolecular assembly, modules which self-assemble into intricate structures have been described. These hierarchically assembled systems extend beyond the individual molecule and rely on non-covalent interactions in a directed self-assembly process. The intrinsic properties of the materials can be modified by exploiting the dynamic and specific uni-directional interactions among the building. This also allows the building of novel supramolecular structures such as hydrogels, micelles and vesicles. These aqueous supramolecular networks belong to a novel category of soft biomaterials exhibiting attractive properties such as stimuli-responsiveness and self-healing properties derived from their dynamic behavior. These are important for a wide variety of emerging applications. In this review, the latest literature describing the formation of dynamic polymeric networks through host–guest complex formation will be summarised. These approaches carried out in the aqueous medium have unlocked a versatile toolbox for the design and fine-tuning of supramolecular self-assembled materials.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00057e, Advanced Article

Protein coronas suppress the hemolytic activity of hydrophilic and hydrophobic nanoparticles
Krishendu Saha, Daniel Moyano and Vincent M Rotello

The role of nanoparticle surface hydrophobicity on its hemolytic property is established in the absence and the presence of plasma proteins. Significantly, the formation of plasma protein corona on NP surface protects red blood cells from both hydrophilic and hydrophobic NP-mediated hemolysis.

Mater. Horiz., 2013, DOI: 10.1039/c3mh00075c, Accepted Manuscript

 

Dendrimer-linked, renewable and magnetic carbon nanotube aerogels
Xuetong Zhang, Liang Chen, Tianyu Yuan, Huan Huang, Zhuyin Sui, Ran Du, Xin Li, Yun Lua and Qingwen Lib

Magnetic carbon nanotube aerogels with a repeated aerogel–sol–hydrogel–aerogel transition have been acquired by the special drying of gel-precursors made via assembling individual nanotubes with dendritic poly(amido amine) molecules in the presence of Fe3O4 nanoparticles, which has inspired us to synthesize renewable 3D porosints composed of organic, inorganic and their hybrid building blocks.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00076a, Advanced Article

 

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Materials Horizons – new advanced articles have been published!

All articles published in Materials Horizons benefit from wide exposure, with free access upon registration to all content published during 2014 and 2015

Taking Orders from light: progress in photochromic bio-materials
Junji Zhang, Jiaxing Wang and He Tian

Photochromic materials are a family of compounds which undergo photo-reversible transformations between two different isomers with distinct physical and chemical properties. Most smart photochromic materials have been exploited in research areas such as electro-optical functional materials, while recently their applications have extended to novel bio-materials. Biological systems, such as tissue/cellular imaging, nucleotides, peptides, ion channels, etc., have emerged as a revolutionary research frontier for photochromic materials since both covalent coupling and non-covalent interactions with bio-molecules have been achieved. This review commences with a brief description of exciting progress in this field, and describes strategies for using photochromic functional molecules from bio-sensing and cell imaging to optical manipulation of bio-macromolecules (nucleotides, peptides, ion channels, GFP, etc.). Further development of these photo-switches as well as remaining challenges are also discussed and put in prospect.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00031a, Advance Article

Reactive self-assembled monolayers: from surface functionalization to gradient formation
Carlo Nicosia and Jurriaan Huskens

This review describes the progress of the development of surface chemical reactions for the modification of self-assembled monolayers (SAMs) and the fabrication of surface chemical gradients. Various chemical reactions can be carried out on SAMs to introduce new functionalities. “Click” reactions, which are highly efficient and selective, have largely contributed to the development and implementation of surface chemical reactions in the fields of biotechnology, drug discovery, materials science, polymer synthesis, and surface science. Besides full homogeneous functionalization, SAMs can be modified to exhibit a gradual variation of physicochemical properties in space. Surface-confined chemical reactions can be used for the fabrication of surface chemical gradients making the preparation of exceptionally versatile interfaces accessible.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00046j, Advance Article

Catalyst-free room temperature self-healing elastomers based on aromatic disulfide metathesis
Alaitz Rekondo, Roberto Martin, Alaitz Ruiz de Luzuriaga, Germán Cabañero, Hans J. Grande and Ibon Odriozola

Aromatic disulfide metathesis has been reported as one of the very few dynamic covalent chemistries undergone at room-temperature. Here, bis(4-aminophenyl) disulfide is effectively used as a dynamic crosslinker for the design of self-healing poly(urea–urethane) elastomers, which show quantitative healing efficiency at room-temperature, without the need for any catalyst or external intervention.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00061c, Advance Article







Novel features of multiferroic and magnetoelectric ferrites and chromites exhibiting magnetically driven ferroelectricity

Rana Saha, A. Sundaresan and C. N. R. Rao

A few oxides such as YMnO3, TbMnO3, YMn2O5 and BiFeO3 constituted the small family of well-characterized multiferroics until recently, but this area of research has been enlarged significantly due to the advent of a novel class of oxides exhibiting interesting multiferroic and magnetoelectric properties arising from magnetically induced ferroelectricity. Interestingly, these materials are simple transition metal oxides, most of them possessing the perovskite structure. In this review article, we present the significant features of multiferroic and magnetoelectric ferrites and chromites which owe their ferroelectricity to magnetic interactions. Some of the important systems discussed are BiFeO3 whose properties are affected by magnetic and electric fields, rare-earth orthoferrites LnFeO3 (Ln = Dy, Gd and Sm) and rare-earth orthochromites LnCrO3, where exchange-striction plays a significant role. Perovskite oxides of the type Y(A1−xBx)O3 (A, B = Fe, Cr, Mn) exhibit multiferroic properties, although the existence of these properties in YFeO3 and YCrO3 is in doubt. Such oxides with a non-magnetic rare-earth cation at the A site and two transition metal ions in the B-site permit tuning the transition temperatures by varying the B site ions and their relative proportions or the Ln ion. Multiferroic properties of simple ferrites such as Al(Ga)FeO3 where cation disorder appears to play a role are also discussed. Problems and challenges in this area of research are indicated.

Mater. Horiz., 2014, DOI: 10.1039/c3mh00073g, Advance Article

All articles published in Materials Horizons benefit from wide exposure, with free access upon registration to all content published during 2014 and 2015

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