Interplay of thermal and quantum spin fluctuations in the kagome lattice compound herbertsmithite
Name
Wulferding-2010-Interplay of thermal.pdf
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Author(s)
Lee, Young S.
Han, Tianheng
Chu, Shaoyan
Mendels, Philippe
Röder, Jens
Scheib, Patric
Lemmens, Peter
Wulferding, Dirk
Date Issued
October 2010
Journal
Physical Review B
Publisher
American Physical Society
Citation
Wulferding, Dirk et al. “Interplay of thermal and quantum spin fluctuations in the kagome lattice compound herbertsmithite.” Physical Review B 82.14 (2010): 144412.© 2010 The American Physical Society.
Version
Final published version
Abstract
We present a Raman spectroscopic investigation of the herbertsmithite ZnCu[subscript 3](OH)[subscript 6]Cl[subscript 2], a realization of a Heisenberg s=1/2 antiferromagnet on a perfect kagome lattice. Focusing on its magnetic excitation spectrum we find two components, a high-temperature quasielastic signal and a low temperature, broad maximum. The latter has a linear low-energy slope and extends to high energy. We have investigated the temperature dependence and symmetry properties of both signals. Our data agree with previous calculations and point to a gapless spin liquid ground state.
MIT Department
MIT Materials Research Laboratory
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.82.144412
