Induced Order in Nonequivalent Two-Leg Hubbard Ladder(Condensed Matter Physics)
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概要
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Motivated by the presence of different orders in multilayered high-temperature superconductors, we examine a model consisting of nonequivalent two Hubbard chains coupled by interchain hopping by using the density-matrix renormalization group (DMRG) and a mean-field theory. As an example, we consider a system with noninteracting chain without order and a Hubbard chain with strong antiferromagnetic (AF) spin-density-wave correlation. We find that the magnitude of the interchain hopping controls the strength of induced AF correlation as well as that of original one. It is also found that the induced AF correlation decreases with increasing the magnitude of the original correlation. Implications to the multilayered system are discussed.
- 理論物理学刊行会の論文
- 2009-10-25
著者
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Tohyama Takami
Yukawa Institute For Theoretical Physics Kyoto University
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Tohyama Takami
Yukawa Inst. For Theoretical Physics Kyoto Univ.
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Morinari Takao
Yukawa Institute For Theoretical Physics Kyoto University
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Tohyama Takami
Kyoto Univ. Kyoto Jpn
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Morinari Takao
Kyoto Univ. Kyoto Jpn
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YOSHIZUMI Hiroyuki
Yukawa Institute for Theoretical Physics, Kyoto University
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Yoshizumi Hiroyuki
Yukawa Institute For Theoretical Physics Kyoto University
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Tohyama Takami
Yukawa Institute for Theoretical Physics, Kyoto University
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