Magnetic Ground State of the Kagome Lattice in Fe4Si2Sn7O16

ORAL

Abstract

Bulk Characterisation, neutron powder diffraction and muon spin relaxation data has been used to determine the magnetic ground state of Fe4Si2Sn7O16. The only magnetic ions in this compound are layers of high-spin Fe2+ (d6, S=2) arranged on a perfectly hexagonal kagome lattice. Below TN=3.5 K, the spins partiall order into canted antiferromagnetic chains, separated by paramagnetic spis on the geometrically frustrated lattice. No static long-range order was observed down to at least T=0.1~K.

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Presenters

  • Jason Gardner

    Neutron Group, Natl Synchrotron Rad Res Ctr

Authors

  • Jason Gardner

    Neutron Group, Natl Synchrotron Rad Res Ctr

  • Chris Ling

    University of Sydney

  • Dominic Ryan

    Physics, McGill University, McGill University

  • Rajib Sarkar

    Technische Universität Dresden, Institute of Solid State and Materials Physics, TU- Dresden, Institute of Solid State and Materials Physics, Technical University of Dresden, Institute for Solid State Physics, TU Dresden

  • Tilo soehnel

    University of Auckland