Exact Solutions of Domain Wall and Spiral Ground States in Hubbard Models (General)

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概要

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• We construct a set of exact ground states with a localized ferromagnetic domain wall and an extended spiral structure in a deformed flat-band Hubbard model. In the case of quarter filling, we show the uniqueness of the ground state with a fixed magnetization. We discuss a more realistic situation given by a band-bending perturbation, which can stabilize these curious structures. We study a conduction electron scattered by the domain wall and the spiral spins.

• 社団法人日本物理学会の論文
• 2004-03-15

著者

• Itoi Chigak

  Department of Physics, College of Science and Technology, Nihon University

• Itoi Chigak

  Department Of Physics Nihon University

• Itoi Chigak

  Department Of Physics And Atomic Energy Research Institute College Of Science And Technology Nihon U

• HOMMA Makoto

  Department of Physics, Nihon University

• Homma Makoto

  Department Of Physics Nihon University

• ITOI Chigak

  Department of Physics, Nihon University

関連論文

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• Effect of Second-Rank Random Anisotropy on Critical Phenomena of Random Field O(N) Spin Model
• Renormalization Group Approach to Matrix Models and Vector Models
• Exact Solutions of Domain Wall and Spiral Ground States in Hubbard Models (General)
• Incomplete Schiff Shielding of Nuclear Electric Dipole Moment in Ionic Atom

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