Tuning Magnetic and Electronic Properties in Exotic Silver(II) Fluorides Using Pressure

 · Invited

Abstract

Silver(II) fluorides exhibit unique structural, electronic and magnetic features which render them similar to parent compounds of high-TC oxocuprate superconductors. These encompass the reduced structural and magnetic dimensionality, the persistence of the Jahn-Teller effect, substantial covalence of chemical bonding between metal and nonmetal (d-p hybridization), potent magnetic superexchange via nonmetal atom, insulating charge-transfer character within the Zaanen-Sawatzky-Allen clasification, small energy band gap at the Fermi level, comparable Debye frequencies, etc. Here I will discuss the behaviour of some of these materials (including doped systems) at elevated pressure conditions as obtained from combined experimental and theoretical studies. Influence of high pressure on bonding, as well as electronic and magnetic properties, will be discussed. Possibility to achieve metallization and superconductivity will also be addressed.

*Polish National Science Center (NCN) (Harmonia “HP” No. 2012/06/M/ ST5/00344 and Maestro "Silverland" No. 2016/23/ G/ST5/04320)
Slovenian Research Agency (ARRS) (P1-0045 Inorganic Chemistry and Technology)
ICM UW supercomputers (ADVANCE++, GA76-19)
GeoSoilEnviroCARS (The University of Chicago, Sector 13) is supported by the National Science Foundation - Earth Sciences (EAR-1128799) and the Department of Energy - GeoSciences (DE-FG02-94ER14466). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Portions of this work were performed at the HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT operation is supported by the DOE-NNSA under Award No. DE-NA0001974, with partial instrumentation funding by the NSF.
Italian MAECI under collabora- tive Projects SUPERTOP-

–

Presenters

  • Wojciech Grochala

    • Center of New Technologies, University of Warsaw

Authors

  • Wojciech Grochala

    • Center of New Technologies, University of Warsaw

  • Adam Grzelak

    • Center of New Technologies, University of Warsaw

  • Jakub Gawraczynski

    • Center of New Technologies, University of Warsaw

  • Dominik Kurzydlowski

    • Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszynski Univ.

  • Zoran Mazej

    • Dept. of Inorg. Chem. and Techn., Jozef Stefan Institute

  • Vitali Prakapenka

    • Center for Advanced Radiation Sources, University of Chicago
    • GSECARS, University of Chicago
    • Center for Advanced Radiation Sources
    • Center for Advanced Radiation Source, University of Chicago

  • Mariana Derzsi

    • Center of New Technologies, University of Warsaw

  • Viktor Struzhkin

    • Geophysical Laboratory, Carnegie Institution for Science

  • Paolo Barone

    • SPIN, CNR
    • CNR-SPIN, Consiglio Nazionale delle Ricerche
    • CNR-SPIN

  • Jose Lorenzana

    • Dept. of Physics, ISC-CNR and Univ. of Rome