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Polar oxides: synthesis, science and applications

The polar oxides constitute a particular group of functional materials depicting properties related to their intrinsic charge unbalance such as ferroelectricity, piezoelectricity, pyroelectricity, but also other properties such as magnetic or orbital orders. The term “polar oxides” shows a rapidly increasing trend since 10 years, illustrating the growth of scientific interest in the field of oxide properties and their applications.


Polar oxides are of critical importance for energy, optoelectronic, catalytic, as well as storage and information processing in nanoelectronics. The purpose of the symposium is to cover a wide range of topics, including the characterization and investigation of structural, dielectric and piezoelectric properties of bulk materials and thin films, as well as phase transitions, properties coupled to deformation, charge and optical responses, and microscopic investigations. The properties of polar oxides will also be apprehended in order to be exploited in actual and future applications with optimized and new functionalities. A novel interesting class of polar oxides is based on doped Hf(Zr)O2 with non-centrosymmetric orthorhombic structure, a Sicompatible ferroelectric material which could be used for manufacturable and scalable embedded FeRAM applications as well as steep slope switching devices.
The goal of this symposium is to bring together scientists working in various fields of fundamental concepts
and applications from material synthesis, crystal and defect structure, characterization, physico-chemical
properties, modelling, and device design in the framework of polar oxides.
Theoretical and experimental concepts (including fabrication, characterizations and structuration/patterning) exploiting ferroelectrics, antiferroelectrics and related polar media as materials for:

  • Embedded memories (ferroelectric-based, e.g. doped HfO2), negative capacitance steep slope switches
  • Tunneling based devices
  • Multistate junctions for neuromorphic electronic synapses
  • Energy storage (supercapacitors), energy harvesting, calorimetry
  • IR imaging, electro-optics, non-linear and other photonic applications
  • Catalytic activities

Hot topics to be covered by the symposium:

  • Synthesis and crystal growth of bulk and low-dimensional oxide materials
  • Polar surfaces simulation, patterning and characterizations
  • Design of materials of desired properties, theory and modeling
  • Structure-properties relationships, phase diagrams
  • Tuning the polar oxide properties from intrinsic and extrinsic approaches
  • Interfaces, electronic transport and photovoltaics
  • Domain walls, polar vortices and topological features in ferroics
  • Other fundamental phenomena: flexoelectricity, antiferroelectricity
  • Advanced characterization
  • Applications using polar oxides

Tentative list of invited speakers:

  • Ana Sanchez [Warwick University]
  • Stephen Jesse [Oak Ridge National Laboratory]
  • Marty Gregg [Queen's University]
  • Tae-Won Noh (Seoul National University]

Tentative list of scientific committee members:

  • Gang Niu (Xi’An Jiaotong University, China)
  • Marie-Paule Besland (IMN-CNRS, Nantes, France)
  • Hitoshi Tabata (The University of Tokyo, Japan)
  • Mohamed Chaker (INRS, Varenne, Canada)
  • Lucian Pintilie (NIMP, Romania)
  • Ingrid C. Infante (INL-CNRS, France)
  • Hidekazu Tanaka (Osaka University, Japan)
  • Nick Barrett (IRAMIS-CEA, France)
  • Run-Wei Li (NIMTE, China)
  • Igor Stolichnov (EPFL, Switzerland)


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Symposium organizers

Patriarchou Grigoriou & Neapoleos Str.1, 15310, Aghia Paraskevi, Athens, Greece

+30 210 650 3340

Ecole Centrale de Lyon - F7 building, 36 avenue Guy de Collongue, F-69134 Ecully cedex - France

+33 (0)4 72 18 62 54

Campus Universitat Autonoma de Barcelona, Bellaterra 08193, Barcelona, Catalonia

+34 937373618
Marin ALEXEUniversity of Warwick

Gibbet Hill Rd. Coventry, CV4 7AL, UK

+44 24 765 26083