Magnetic Ground State of the Kagome Lattice in Fe<sub>4</sub>Si<sub>2</sub>Sn<sub>7</sub>O<sub>16</sub>

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