High-field magnetic ground state in S = 1/2 kagome lattice antiferromagnet ZnCu[subscript 3](OH)[subscript 6]Cl[subscript 2<]
Name
PhysRevB.90.064417.pdf
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Author(s)
Asaba, Tomoya
Han, Tianheng
Lawson, B. J.
Yu, F.
Tinsman, C.
Xiang, Z.
Li, G.
Lee, Young S.
Li, Lu
Date Issued
August 2014
Journal
Physical Review B
Publisher
American Physical Society
Citation
Asaba, Tomoya, et al. "High-field magnetic ground state in S = 1/2 kagome lattice antiferromagnet ZnCu[subscript 3](OH)[subscript 6]Cl[subscript 2<]." Phys. Rev. B 90, 064417 (August 2014). © 2014 American Physical Society
Version
Final published version
Abstract
Herbertsmithite ZnCu[subscript 3](OH)[subscript 6]Cl[subscript 2] is a kagome lattice antiferromagnet with spin-1/2 and has been demonstrated to be a likely candidate of spin liquid by a number of recent experiments. The high-field magnetization of the kagome lattice is complicated due to the presence of a few percent of extra Cu impurities sitting on the interlayer metallic sites. To determine the magnetic ground state of the kagome lattice, we measured the magnetization of a single crystalline ZnCu[subscript 3](OH)[subscript 6]Cl[subscript 2] using torque magnetometry down to the base temperatures 20 mK in intense magnetic field as high as 31 T. The high-field intrinsic magnetization from the kagome lattice turns out to be linear with magnetic field, and the magnetic susceptibility is independent of temperature at 20 mK ≤ T ≤ 5 K. Moreover, below 2 K, several field-induced anomalies are observed in between 7 T and 15 T.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.90.064417
