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- Hiroyuki Takeya2 profiles10
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Showing cond-mat.stat-mechShow all
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cond-mat.stat-mech2007★ 32 cited
Geometric phases and the magnetization process in quantum antiferromagnets
Akihiro Tanaka, Keisuke Totsuka, Xiao Hu
The physics underlying the magnetization process of quantum antiferromagnets is revisited from the viewpoint of geometric phases. A continuum variant of the Lieb-Schultz-Mattis-typ…
cond-mat.stat-mech2006
Spin melting and refreezing driven by uniaxial compression on a dipolar hexagonal plate
Katsuyoshi Matsushita, Ryoko Sugano, Akiyoshi Kuroda +2
We investigate freezing characteristics of a finite dipolar hexagonal plate by the Monte Carlo simulation. The hexagonal plate is cut out from a piled triangular lattice of three l…
cond-mat.stat-mech2005★ 68 cited
Structure of Metastable States in Phase Transitions with High-Spin Low-Spin Degree of Freedom
Seiji Miyashita, Yusuke Konishi, Hiroko Tokoro +3
Difference of degeneracy of the low-spin (LS) and high-spin (HS) states causes interesting entropy effects on spin-crossover phase transitions and charge transfer phase transitions…