The magnetic structure of the zigzag chain family Na$_{x}$Ca$_{1-x}$V$_2$O$_4$ determined by muon-spin rotation

ORAL

Abstract

We present a muon spin rotation measurements on the complete zig-zag chain Na$_x$Ca$_{1-x}$V$_2$O$_4$ family. In this family we explore the magnetic properties from the metallic NaV$_2$O$_4$ to the insulating CaV$_2$O$_4$. We find a critical $x_c$ which separates the low and high $x$ transition temperature and its magnetic ground state. For $xx_c$ multiple subphases are revealed. Based on the muon data, dipolar field simulation indicate a helical incommensurate structure in $x=1$ with a $\sim4.88$ periodicity.

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Authors

  • Oren Ofer

    • TRIUMF, 4004 Wesbrook Mall, Vancouver BC, V6T1A3 Canada

  • Tatsuo Goko

    • TRIUMF, 4004 Wesbrook Mall, Vancouver BC, V6T1A3 Canada

  • Jess H. Brewer

    • CIfAR and Department of Physics and Astronomy, UBC and TRIUMF, 4004 Wesbrook Mall, Vancouver

  • Eduardo J. Ansaldo

    • TRIUMF, 4004 Wesbrook Mall, Vancouver

  • Jun Sugiyama

    • Toyota CRDL Inc., Nagakute, Aichi 480-1192, Japan

  • Yutaka Ikedo

    • Muon Science Laboratory, Institute of Materials Structure Science, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

  • Kim Chow

    • Department of Physics, University of Alberta, Edmonton, AB, T6G 2G7 Canada

  • Martin M\aa{}nsson

    • Laboratory for Neutron Scattering, ETH Z\"{u}rich and Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland

  • Hiroya Sakurai

    • National Institute for Materials Science, Namiki, Tsukuba, Ibaraki 305-0044, Japan