Quantum Phase Transitions of the S = 1 Shastry-Sutherland Model
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概要
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We investigate quantum phase transitions of the two-dimensional S = I Shastry-Sutherland model, which is characterized by the frustrated orlhogonal-dimer structure, by means of the exact diagonalization method and the Ising-type series expansion method. We clarify how distinct spin gap phases realized in the chain system are adiabatically connected to those in the two-dimensional Shastry-Sutherland model. The effect of single-ion anisotropy is also discussed.
- 社団法人日本物理学会の論文
- 2003-04-15
著者
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KOGA Akihisa
Department of Applied Physics, Osaka University
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Koga Akihisa
Department Of Applied Physics Osaka University
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Sigrist Manfred
Theoretische Physik Eth-honggerberg
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Koga A
Department Of Physics Kyoto University
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Sigrist Manfred
Theoretische Physik
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Koga Akihisa
Department of Physics, Kyoto University
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