Vortex dynamics and frustration in two-dimensional triangular chromium lattices
DSpace at IIT Bombay
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Title |
Vortex dynamics and frustration in two-dimensional triangular chromium lattices
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Creator |
HEMMIDA, M
VON NIDDA, HAK BUTTGEN, N LOIDL, A ALEXANDER, LK NATH, R MAHAJAN, AV BERGER, RF CAVA, RJ SINGH, Y JOHNSTON, DC |
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Subject |
heisenberg-antiferromagnet
magnetic-properties exchange integrals phase-transitions xy-model licro2 nacro2 order systems oxides antiferromagnetic materials frustration hydrogen compounds lithium compounds neel temperature paramagnetic resonance sodium compounds spin dynamics |
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Description |
The spin dynamics of the two-dimensional (2D) triangular lattice antiferromagnets HCrO(2), LiCrO(2), and NaCrO(2) is investigated by electron spin resonance. In these oxides, on approaching the Neacuteel temperature T(N) from above, the divergence of the temperature dependent linewidth is well described in terms of a Berezinskii-Kosterlitz-Thouless scenario due to magnetic vortex-antivortex pairing. A refined analysis suggests analogies to the melting scenario of a 2D triangular lattice described by Nelson, Halperin, and Young.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-17T01:25:16Z
2011-12-26T12:50:02Z 2011-12-27T05:35:58Z 2011-07-17T01:25:16Z 2011-12-26T12:50:02Z 2011-12-27T05:35:58Z 2009 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW B, 80(5), -
1098-0121 http://dx.doi.org/10.1103/PhysRevB.80.054406 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4579 http://hdl.handle.net/10054/4579 |
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Language |
en
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