抄録
We investigate the freezing characteristics of a finite dipolar hexagonal plate by Monte Carlo simulation. The hexagonal plate is cut out from a piled triangular lattice of three layers with FCC-like (ABCABC) stacking structure. In the present study an annealing simulation is performed for a dipolar plate uniaxially compressed in the direction of layer-piling. We find spin melting and refreezing driven by the uniaxial compression. Each of the melting and refreezing corresponds one-to-one with a change of the ground states induced by compression. The freezing temperatures of the ground-state orders differ significantly from each other, which gives rise to the spin melting and refreezing of the present interest. We argue that these phenomena are originated by a finite size effect combined with a peculiar anisotropic nature of the dipole-dipole interaction.
本文言語 | English |
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論文番号 | 145206 |
ジャーナル | Journal of Physics Condensed Matter |
巻 | 19 |
号 | 14 |
DOI | |
出版ステータス | Published - 2007 4月 11 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料科学(全般)
- 凝縮系物理学