Slow relaxation of spin structure in exotic ferromagnetic phase of Ising-like Heisenberg Kagomé Antiferromagnets

Shu Tanaka, Seiji Miyashita

研究成果: Article査読

11 被引用数 (Scopus)

抄録

In the corner-sharing lattice, magnetic frustration causes macroscopic degeneracy in the ground state, which prevents systems from ordering. However, if the ensemble of the degenerate configuration has some global structure, the system can have a symmetry breaking phenomenon and thus posses a finite temperature phase transition. As a typical example of such cases, the magnetic phase transition of the Ising-like Heisenberg antiferromagnetic model on the kagomé lattice has been studied. There, a phase transition of the two-dimensional ferromagnetic Ising universality class occurs accompanying with the uniform spontaneous magnetization. Because of the macroscopic degeneracy in the ordered phase, the system is found to show an entropy-driven ordering process, which is quantitatively characterized by the number of "weathervane loop" (WL). We investigate this novel type of slow relaxation in regularly frustrated system.

本文言語English
論文番号103001
ジャーナルJournal of the Physical Society of Japan
76
10
DOI
出版ステータスPublished - 2007 10
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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