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From quantum disorder to magnetic order in an s=1/2 kagome lattice: a structural and magnetic study of herbertsmithite at high pressure

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posted on 24.04.2015 by D.P. Kozlenko, Anna Kusmartseva, E.V. Lukin, D.A. Keen, W.G. Marshall, M.A. DeVries, Konstantin V. Kamenev
The structural and magnetic properties of deuterated herbertsmithite have been studied by means of neutron powder diffraction and magnetic susceptibility measurements in a wide range of temperatures and pressures. The experimental data demonstrate that a phase transition from the quantum-disordered spin-liquid phase to the long-range ordered antiferromagnetic phase with the Néel temperature T N=6K is induced at P=2.5GPa. The observed decrease of T N upon compression correlates with the anomalies in pressure behavior of Cu-O bond length and Cu-O-Cu bond angles. The reasons for the observed spin-freezing transition are discussed within the framework of the available theoretical models and the recent observation of the field-induced spin freezing. © 2012 American Physical Society.

Funding

This work was funded by and supported through resources made available by the Science and Technology Facilities Council and the Russian Foundation for Basic Research, Grant No. 12-02- 00794-a.

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School

  • Science

Department

  • Physics

Published in

Physical Review Letters

Volume

108

Issue

18

Citation

KOZLENKO, D.P. ... et al, 2012. From quantum disorder to magnetic order in an s=1/2 kagome lattice: a structural and magnetic study of herbertsmithite at high pressure. Physical Review Letters - Moving Physics Forwards, 108 (18), 187207.

Publisher

© American Physical Society

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2012

Notes

This article was published in the journal, Physical Review Letters [© American Physical Society]. It is also available at: http://dx.doi.org/10.1103/PhysRevLett.108.187207

ISSN

0031-9007

eISSN

1079-7114

Language

en

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