Dzyaloshinskii-Moriya interaction and spin reorientation transition in the frustrated kagome lattice antiferromagnet
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Matan-2011-Dzyaloshinskii-Moriy.pdf
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Author(s)
Matan, Kittiwit
Bartlett, Bart M.
Helton, Joel S.
Sikolenko, V.
Mat'as, S.
Prokes, K.
Chen, Y.
Lynn, J. W.
Grohol, D.
Sato, T. J.
Date Issued
June 2011
Journal
Physical review B
Publisher
American Physical Society
Citation
Matan, K. et al. “Dzyaloshinskii-Moriya Interaction and Spin Reorientation Transition in the Frustrated Kagome Lattice Antiferromagnet.” Physical Review B 83.21 (2011) : n. pag. ©2011 American Physical Society
Version
Final published version
Abstract
Magnetization, specific heat, and neutron scattering measurements were performed to study a magnetic transition in jarosite, a spin-5/2 kagome lattice antiferromagnet. When a magnetic field is applied perpendicular to the kagome plane, magnetizations in the ordered state show a sudden increase at a critical field Hc {H subscript c], indicative of the transition from antiferromagnetic to ferromagnetic states. This sudden increase arises as the spins on alternate kagome planes rotate 180° to ferromagnetically align the canted moments along the field direction. The canted moment on a single kagome plane is a result of the Dzyaloshinskii-Moriya interaction. For HHc [H greater than H subscript c], the Zeeman energy overcomes the interlayer coupling causing the spins on the alternate layers to rotate, aligning the canted moments along the field direction. Neutron scattering measurements provide the first direct evidence of this 180° spin rotation at the transition.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.83.214406
