Magnetization plateaus and sublattice ordering in easy-axis kagome lattice antiferromagnets
DSpace at IIT Bombay
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Title |
Magnetization plateaus and sublattice ordering in easy-axis kagome lattice antiferromagnets
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Creator |
SEN, A
DAMLE, K VISHWANATH, A |
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Subject |
frustration
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Description |
We study kagome lattice antiferromagnets where the effects of easy-axis single-ion anisotropy (D) dominates over the Heisenberg exchange J. For S >= 3/2, virtual quantum fluctuations help lift the extensive classical degeneracy. We demonstrate the presence of a one-third magnetization plateau for a broad range of magnetic fields J(3)/D(2)less than or similar to B less than or similar to JS along the easy axis. The fully equilibrated system at low temperature on this plateau develops an unusual nematic order that breaks sublattice rotation symmetry but not translation symmetry; however, extremely slow dynamics associated with this ordering is expected to lead to glassy freezing of the system on intermediate time scales.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-16T22:01:33Z
2011-12-26T12:49:58Z 2011-12-27T05:35:50Z 2011-07-16T22:01:33Z 2011-12-26T12:49:58Z 2011-12-27T05:35:50Z 2008 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW LETTERS, 100(9), -
0031-9007 http://dx.doi.org/10.1103/PhysRevLett.100.097202 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4540 http://hdl.handle.net/10054/4540 |
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Language |
en
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