Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mott transition and Antiferromagnetic Metal on Shastry-Sutherland
  Lattice   The Shastry-Sutherland lattice, one of the simplest systems with geometric
frustration, which has an exact eigenstate by putting singlets on diagonal
bonds, can be realized in a group of layered compounds and rises both
theoretical and experimental interest. Most of the previous studies on the
Shastry-Sutherland lattice are focusing on the Heisenberg model. Here we opt
for the Hubbard model to calculate phase diagrams over a wide range of
interaction parameters, and show the competing effects of interaction,
frustration and temperature. At low temperature, frustration is shown to favor
a paramagnetic metallic ground state, while interaction drives the system to an
antiferromagnetic insulator phase. Between these two phases, there are an
antiferromagnetic metal phase and a paramagnetic insulator (which should be a
valence bond solid) phase resulting from the competition of the frustration and
the interaction. Our results may shed light on more exhaustive studies about
quantum phase transitions in this lattice.

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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: hep-ph