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01573 am a22002293u 4500 |
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75757 |
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|a Chern, Gia-Wei
|e author
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|a Massachusetts Institute of Technology. Department of Physics
|e contributor
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|a Nandkishore, Rahul Mahajan
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|a Fernandes, Rafael M.
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|a Nandkishore, Rahul Mahajan
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|a Chubukov, Andrey V.
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|a Broken translational symmetry in an emergent paramagnetic phase of graphene
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|b American Physical Society,
|c 2012-12-18T15:00:37Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/75757
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|a We show that the spin-density wave state on the partially filled honeycomb and triangular lattices is preempted by a paramagnetic phase that breaks an emergent Z[subscript 4] symmetry of the system associated with the four inequivalent arrangements of spins in the quadrupled unit cell. Unlike other emergent paramagnetic phases in itinerant and localized-spin systems, this state preserves the C[subscript 6] rotational symmetry of the lattice, but breaks its translational symmetry, giving rise to a superlattice structure that can be detected by scanning tunneling microscopy. This emergent phase also has distinctive signatures in the magnetic spectrum that can be probed experimentally.
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|a ICAM (Grant NSF-DMR 0645461)
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|a National Science Foundation (U.S.) (Partnerships for International Research and Education Program OISE-0968226)
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|a en_US
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|a Article
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|t Physical Review B
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