For  more  than  half  a  century  perovskite  ceramics  represent  the  most  important  ferroic  and multiferroic  materials.  From  traditional  PZTs  to  state  of  the  art  polar  oxides  have  been  investigated world- wide  and  applied  in  the  overwhelming  majority of electromechanical actuators as well as in a wide diversity of information storage devices. Indeed, during the last two decades, and due to the increasing importance of  environmental protection for the high toxicity of lead and lead oxide, a great number of countries in all continents have legislated to replace this material, and this has dragged an intense research on lead-free piezoelectric ceramics. Some objectives of industrial transference of these materials have already been achieved, whereas some basic problems remain still unsolved.

Some  current  tendencies  in  the  field  are  the  investigation  and  application  of  lead free ferro- piezoelectric perovskites for informatics and actuators at micro- and nanoscales. The challenge of obtaining environmentally-friendly materials with competitive ferro- and piezoelectric performances has not been solved and several questions regarding the structure-properties relationship are currently open, under discussion.

Magnetoelectric  multiferroics  define  another  field  of  intense  activity  today.  With  already  identified  high application  potentialities  in  fields  informatics  to  medicine,  mastering  multiferroics  looks  not  yet  within easy  reach.  To  date,  single- phased  multiferroics  hide  the  manner  they  would  surpass  composite magnetoelectrics.  Important  groups  at  international  scale  work  deciphering the physics of multiferroicty.

A high level of research activity is going on in several laboratories. Investigations put attention on experimental synthesis and properties measurements of new materials families, detailed characterization of crystallographic and electronic structures, theoretical search, modeling and prediction of optimized structures and properties with multiscale approaches. In parallel, a wide spectrum of technological applications is being been developed.

Superconducting materials has always been, and still is, a major branch of Materials Science, especially since the late 1980’s, when the so-called HTSC mixed oxide cuprates were discovered: critical temperatures up to 135 at room pressure and 165 K at high pressures, have since been achieved. About 20 years later, another surprising discovery was done with the pnictide type iron-based superconductors - Fe- bSC -  that, in spite of their somewhat lower Tc values constitute another very interesting and populated family. Yet, last year, in a much praised experiment, Eremets et al, following the path of High Pressure resistivity measurements in Hydrogen and diverse hydrides, that have been suggested/predicted to be SC in the 1960’s, observed superconductivity in a sample of “H2S”, at Tc’s up to 203 K at a pressure of 1.5 million bars. Interestingly enough, D2S, shows a much lower Tc in the same conditions, likely indicating a BCS behaviour. The quest for Room Temperature superconductivity is then alive and well. The present symposium, expects to attract contributions concerning superconducting materials of all sorts and discussed them within the general subject of functional solids. This will surely allow us to explore their very interesting individual properties as well as the possible links between them.

Mixed  oxide- anion  (for  example  O/F,  O/S/  or  O/N)  materials  present  a  wide  range  of  applications because  of  their  basic  functionalities.  This  forum  covers  fundamental  properties  based  on  solid  state chemistry  and  physics  to  potential  devices  based  on  enhanced  properties  offered  by  such  inorganic materials. This Mexico-MRS  symposium  aims  to  be  the  first  Mexico- MRS  meeting  for  this  research topic  on  these  material  systems,  which  are  not  yet  as  widely  known  as  mixed  metal  oxides.

The mixed oxide-anion materials landscape, often but not always perovskite-based, includes, for example their ferroelectric, ferromagnetic, semiconductive, thermoelectric, electroresistive, magnetoresistive properties, active materials such as conductive transparent high temperature stable electrodes, solid state electrolytes, ionic conductors, and photocatalytic, luminescent, and nonlinear optical materials. Device development activities would include state-of-the-art characterization and electronic properties improvement based on heterostructures, interface phenomena, electrode interactions and various device prototypes demonstrations.

The  present  proposed  Mexico- MRS  symposium  aims  creating  a  forum  for  discusson      including physicists  - experimentalists  and  theoreticians- ,  materials  scientists,  solid  state  chemists,  analytical scientists  and  device  design  engineers.  The symposium  will  induce  and  facilitate  interdisciplinary discussions  between  these differing “core groups”, thereby stimulating collaboration and strengthening activities in the, widely expanding field of multifunctional solids of which Ferroics and Multiferroics, Superconductors and Mixed Oxide-Anion Solids are particularly important representatives. This meeting will for sure gather a significant number of high-level specialists that will find in the XXVI IMRC the optimal conditions for fruitful discussions and collaboration coordination.

Symposium Topics

  • Single-phase and  composite 
  • Lead-free   Fundamentals  and  applications.
  • Functional   Crystal  growth.  Structure-properties  characterization.  Multiscale  modelling  of functional  perovskites  performance.
  • Superconductors (theory and new materials): H2S and related, Iron Superconductors, Cuprates, Heavy fermions, etc. Correlations between MF and HTSC.
  • Mixed oxide-anion (O/F, O/S or O/N materials): ferroelectric, ferroconductive, electroresistive, conductive  transparent  high  temperature  stable  electrodes,  solid  state electrolytes, ionic conductors, and photocatalytic, luminescent, and nonlinear optical materials.

Invited Speakers

Marit Kaarpinen (Aalto Univ, Finland), María Elena Montero (CIMAV, Mexico), Nicola Spaldin (ETH Zürich,  Switzerland), Amparo Fuertes (ICMB, Spain), Lorena Pardo (CSIC, Spain), Silvye  Hebert (Laboratoire Crismat, CNRS, France), Pedro Prieto (Univ del Valle,  Colombia), Tom Palstra (Univ of Groningen, The Netherlands), Andrea Cavalleri (MPSD, Germany), Roberto Escudero Derrat (UNAM, México), Regino Sáez Puche (Univ Complutense, Spain), Ivan Schuller (UCSD, USA), Emilio Morán Miguélez (Univ Complutense, Spain), Mikhail Eremets (Max Planck Institute für Chemie, Germany), Hideo Osono (Tokyo Institute of Technology, Japan), Raul Valenzuela (UNAM, Mexico), Casandra Hunt (Univ of California, Berkeley, USA), James Rondinelli (Northwestern Univ, USA), Danna Freedman (Northwestern Univ), Teresa Puig (CSIC, Spain), Leni Bascones (CSIC, Spain), Eiji Muromachi (NIMS, Japan), Masaki Azuma (Tokyo Institute of Technology, Japan), Paul Attfield (Univ of Edinburg, UK), Horacio Navarro Chavez (UNAM, México)