Wen, J.
, Koohpayeh, S.
, Ross, K.
, Trump, B.
, McQueen, T.
, Kimura, K.
, Nakatsuji, S.
, Qiu, Y.
, Pajerowski, D.
, Copley, J.
and Broholm, C.
(2017),
Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub>, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=922085
(Accessed December 26, 2024)
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Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7
Published
Author(s)
J.-J. Wen, S.M. Koohpayeh, K. A. Ross, B. A. Trump, T. M. McQueen, K. Kimura, S. Nakatsuji, , D. M. Pajerowski, ,
Abstract
Inelastic neutron scattering reveals a broad continuum of excitations in Pr2Zr2O7, the temperature and magnetic field dependence of which indicate a continuous distribution of quenched transverse fields (Δ}) acting on the non-Kramers Pr3+ crystal fields ground state doublets. Spin-ice correlations are apparent within 0.2 meV of the Zeeman energy. A random phase approximation provides an excellent account of the data with a transverse field distribution ρ(Δ}) ∝ (Δ}2 + Γ2)U-1^ where Δ} = 0.28(1) meV. Established during high temperature synthesis due to an underlying structural instability, it appears disorder in Pr2Zr2O7 actually induces a quantum spin liquid.Citation
Physical Review Letters
Volume
118
Issue
5
Pub Type
Journals
Download Paper
Keywords
quantum spin liquid, spin ice, inelastic neutron scattering
Citation
Issues
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Created March 7, 2017, Updated October 12, 2021