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SEMICONDUCTORS AND ELECTRONIC MATERIALS

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Phase transitions and properties of ferroics in the form of single crystals, ceramics and thin films

Ferroic materials undergo a large variety of phase transitions and also exhibit important physical properties, many of which are used in industries world-wide. The study of their phase transitions provides useful ways to understand the origin of the properties, and thus to suggest new materials.  Functionality in ferroics can be considered independently on their sizes. They are functional in the macroscopic, microscopic and nanoscopic scales in the form of single crystals, ceramics and thin films. Additionally, the role of controlled content of defects and hence the surface-bulk interrelation makes these materials scientifically exciting and perspective.

Scope:

At the 2018 meeting we would like to keep the scope of our last very successful symposium as in 2016. Enlarging on its previous title “Phase transitions and properties of ferroics” we propose to change to the following: “Phase transitions and properties of ferroics in the form of single crystals, ceramics and thin films”. Hence we would like to recall once again what the term ferroic means. The term ferroicity has been in use for over 50 years since it was first defined, although ferroic materials have been known since the 19th century. They show the property of being able to be switched in some way. For instance, the oldest known ferroic property is that of ferromagnetism where magnetization can be switched by an applied magnetic field, leading to magnetic hysteresis. By analogy with ferromagnetism, ferroelectrics are where an electric polarization is switched by an applied electric field, again with hysteresis. A third type is that of a ferroelastic, in which the strain in a material can be switched by an applied stress. These ferroics are known as primary ferroics. One can also have multiferroics where two or more such ferroic properties are present. In practice this term seems to have been applied mainly to materials in which a magnetization can be switched by an applied electric field, and vice versa. It can be appreciated therefore that ferroics provide a rich field of materials with interesting properties and behaviour, many of which have very important industrial use. Moreover, ferroics also tend to exhibit subtle phase transitions where the crystal structure changes according to group-subgroup symmetry relationships, and at which some properties adopt enhanced values. By studying these phase transitions and how the structures of the ferroics change one can often find what it is in these materials that is responsible for the property in question. It is clear that we need to study not only long-range structure, but also microstructure. This symposium will bring together experts working at the theoretical and experimental level. At the same time, remembering nowadays broad applications of ferroics, one can still speak of their functionality. Thus the symposium will also concentrate on this functionality independently on sizes of ferroics. It means they are functional at the macroscopic, microscopic and nanoscopic scales in the form of single crystals, ceramics and thin films. Additionally, the role of controlled content of defects and hence the surface-bulk interrelation makes these materials scientifically exciting and perspective. Another proof of this is quite new topic in the field of ferroics, i.e. the huge interest recently in photovoltaic properties of the perovskites and their structural aspects.

Hot topics to be covered by the symposium:

  • Structural phase transitions and critical phenomena
  • Magnetoelectric and multiferroic materials
  • Domain boundary engineering
  • Interfacial properties, 2D gases
  • Thin films, multilayers and heterostructures
  • Advances in ab-initio calculations and experimental methods
  • Electro/magneto/elasto-caloric effects
  • Flexoelectricity
  • Piezotronics and photo-piezotronics
  • Integration and devices
  • Light-induced phenomena
  • Defects and disorder in ferroic crystals
  • Electronic structure and optical properties
  • Ferroelectrics and antiferroelectrics 
  • Piezoelectrics and lead-free piezoelectrics
  • Relaxors and applications
  • Recent advances in electron microscopic study of atomic arrangements
  • Structural aspects of photovoltaic perovskites

List of invited speakers (confirmed):

  • S. Artyukhin – Italian Institute of Technology, Genova, Italy
  • M. Bibes – Unité Mixte de Physique CNRS/Thales, Palaiseau, France
  • R. Burkovskiy  – Technical University of St. Petersburg, Russia
  • A. Bussmann-Holder – Max-Planck Institute, Stuttgart, Germany
  • G. Catalan - Institut Catala de Nanociencia i Nanotecnologia, Spain
  • D. Damjanovic – Ecole PolitechniqueFederale de Lausanne, Switzerland
  • O. Dieguez – Tel Aviv University, Israel
  • B. Dkhil – Ecole Centrale Paris, France
  • J.-H. Ko – Hallym University, Korea
  • P. Gehring –NIST, National Institute of Standards and Technology, USA
  • P. Ghosez – CESAM, Université de Liège, Belgium
  • S. Gorfman – Tel Aviv University, Israel
  • M. Gregg – Queen’s University of Belfast, N. Ireland, UK
  • J. Iniguez – Luxembourg Institute of Sciences and Technology, Luxembourg
  • J. Junquera – Universidad Autónoma de Madrid, Spain
  • J. Kreisel – Institute of Sciences and Technology, Luxembourg
  • S. Kamba – Czech Academy of Sciences, Prague, Czech Republic
  • T. Lookman  – Los Alamos National Laboratory, USA
  • M. Maglione – University of Bordeaux, France
  • M. Alexe – University of Warwick, Great Britain
  • Ch. Paillard – University of Arkansas, Fayetteville, USA
  • M. Paściak – Czech Academy of Sciences, Prague, Czech Republic
  • B. Prasad – University of California, Berkeley, USA
  • E. Salje – University of Cambridge, Great Britain
  • W. Schranz – University of Vienna, Austria
  • J. F. Scott – University of St Andrews, Great Britain
  • K. Szot – Forschungszentrum Juelich, Germany
  • P. Thomas – University of Warwick, Great Britain
  • S. Vakrushev – St. Petersburg, Russia 
  • Y. Watanabe – Kyushu University, Japan
  • H. Yokota – Chiba University, Japan                       
  • N. Zhang – Xi'an Jiaotong University, China               
  • Z-G. Ye – Fraser University, Canada

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Symposium organizers
Anthony Michael GLAZERUniversity of Oxford

Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK

michael.glazer@physics.ox.ac.uk
Jiří HLINKAInstitute of Physics | Czech Acad. Sci.

Na Slovance 2 182 21 Prague 8 Czech Republic

+420 266 05 2 154
hlinka@fzu.cz
Krystian ROLEDERInstitute of Physics | University of Silesia

Uniwersytecka 4 40-007 Katowice Poland

+48 32 359 1478
Krystian.Roleder@us.edu.pl