Proposal to use neutron scattering to access scalar spin chirality fluctuations in kagome lattices

Author(s)
Nagaosa, Naoto; Lee, Patrick A.
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Abstract
In the theory of quantum spin liquid, gauge fluctuation is an emergent excitation at low energy. The gauge magnetic field is proportional to the scalar spin chirality S[subscript 1] ⋅ S[subscript 2] × S[subscript 3]. It is therefore highly desirable to measure the fluctuation spectrum of the scalar spin chirality. We show that in the Kagome lattice with a Dzyaloshinskii-Moriya term, the fluctuation in S[subscript z], which is readily measured by neutron scattering, contains a piece which is proportional to the chirality fluctuation.
Date issued
2013-02
URI
http://hdl.handle.net/1721.1/88793
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review B
Publisher
American Physical Society
Citation
Lee, Patrick, and Naoto Nagaosa. “Proposal to Use Neutron Scattering to Access Scalar Spin Chirality Fluctuations in Kagome Lattices.” Phys. Rev. B 87, no. 6 (February 2013). © 2013 American Physical Society
Version: Final published version
ISSN
1098-0121
1550-235X
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