Interplay of chemical pressure and spin degrees of freedom on the magnetic properties of the $A$Ag$_{2}M$[VO$_{4}$]$_{2}$ type of compounds

ORAL

Abstract

A series of layered compounds of the $A$Ag$_{2}M$[VO$_{4}$]$_{2}$ type of structures, featuring the magnetic ions on a triangular lattice, have been synthesized by solid state reactions. Studies on the interplay of i) the chemical pressure induced by the differences in cation sizes ($A^{II}$ = Sr, Ba) and ii) the spin system ($M^{II}$ = Mn, Co, Ni, Cu) provide further insights into the structure-properties relationships which have been investigated by specific heat and magnetization measurements. Furthermore, spectroscopic methods have been employed to evaluate vibrational and electronic structural aspects in detail.

*We thank the Welch Foundation (Grant G099857) for support.

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Authors

  • Angela M\"{o}ller

    • Department of Chemistry and Texas Center for Superconductivity, University of Houston, TX, USA

  • Ngozi Amuneke

    • Department of Chemistry and Texas Center for Superconductivity, University of Houston, TX, USA

  • Phillip Daniel

    • Department of Chemistry and Texas Center for Superconductivity, University of Houston, TX, USA

  • Dana Gheorghe

    • Department of Chemistry and Texas Center for Superconductivity, University of Houston, TX, USA

  • Bernd Lorenz

    • Texas Center for Superconductivity and Department of Physics, University of Houston, TX, USA