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Novel local symmetries and chiral-symmetry-broken phases in S = 1/2 triangular-lattice Heisenberg modelUsing a nonmean-field approach the triangular-lattice S = 1/2 Heisenberg antiferromagnet with nearest- and next-nearest-neighbor couplings is shown undergo an Ising-type phase transition into a chiral-symmetry-broken phase (Kalmeyer-Laughlin-like state) at small T. Removal of next-nearest-neighbor coupling introduces a local Z2 symmetry, thereby suppressing any finite-T chiral order.
Document ID
19900029130
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Baskaran, G.
(California, University Santa Barbara, United States)
Date Acquired
August 14, 2013
Publication Date
November 27, 1989
Publication Information
Publication: Physical Review Letters
Volume: 63
ISSN: 0031-9007
Subject Category
Solid-State Physics
Accession Number
90A16185
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-17853
Distribution Limits
Public
Copyright
Other

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