| 16-20 Jan 2017, Macao

Technical Program

A7. High Pressure Physics as a Tool to Design New Functional Materials


Name : Wei LUO

Affiliation : Uppsala University, Sweden

Email : wei.luo@physics.uu.se


High-pressure science is a fast developing new field in condensed matter physics and may even be regarded as the exploration of an entirely new dimension. This is to a large portion of course due to the development of the diamond anvil cell (DAC) technique with which one can easily control the pressure for systems of interest in the range of several mega bars and due to increasingly sophisticated synchrotron facilities to observe some of the drastic changes effected in the physical properties. With pressure, we can tune electronic, magnetic, structural and vibrational properties of condensed matter for a wide range of applications. "Inert gases" cease to be noble and inert, and can form stoichiometric compounds; likewise, normally unreactive transition metals can form alloys with alkali metals; silicate tetrahedral frameworks, the basis of rock-forming minerals, are destroyed and replaced by silicate octahedra; carbon rings, basic structural units of polymer and organic chemistry, become unstable and are replaced by diamond-like structures. High-pressure research has been predicted to ultimately even lead to the establishment of a new Periodic Table, one which has the same elements but completely redefined physical and chemical behaviors at megabar pressures. In this sense, the field of high pressure could indeed establish itself as a dimension in physical science on a par with temperature (low- and high-temperature physics) and composition (chemistry and materials science). First of all the exploration of the megabar pressure range is highly interesting by itself, where new physics and chemistry can be expected. Second, the general problem about the equation-of-state in this pressure range is highly significant for a vast number of materials. The underlying mechanisms determining the geometrical arrangement of atoms can be elucidated by the study of matter at extreme conditions, probing a new range of electron densities. One example where high pressure can play important role, for example for search of new high Tc superconductors or Hard materials. Materials under pressure change their forms and the superconducting state of a material is strongly linked to these structural phase transition. Pressure enhances electron-phonon interactions and the corresponding critical temperature (Tc). An important byproduct from this meeting at ICCP-10 (Jan., 2017) could lead to an improved understanding and performance of materials at ambient and extreme conditions.

Topics to be covered in mini-symposium 

●  Topological Insulators 
●  Hard Materials (Carbon Based Materials)
●  Hydrogen Densed Materials
●  Phase Change Materials
●  Functional Oxides
●  Dilute Magnetic Semiconductors
●  Data Driven Discovery

Keynote Speakers: 

●  Börje Johansson, The Royal Institute of Technology, Sweden

Invited Speakers: 

●  Ali Zaoui, Université des Sciences et Technologies de Lille 1, France
●  Hua Y. Geng, National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China 
●  Jian Sun,Nanjing University, China 
●  Rajeev Ahuja, Uppsala University, Sweden
●  Tian Cui, Jilin University, China

For program details, please click here