Nonlinear Effect on the Axial Next-Nearest Neighbor Ising (ANNNI) Model: Application to CeSb

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概要

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• Mean field calculations are made to study the effect of nonlinear terms with respectto the magnetization in the axial next-nearest neighbor Ising (ANNNI) model. Thephase diagrams are calculated in both zero and nonzero magnetic fields, in which alarge number of high-order commensurate phases is found. It is shown that thenonlinear effect makes the ordered phase stable at higher temperatures and largerfields. Partially disordered states which contain paramagnetic sites are also obtained,resulting from the nonlinear effect as well as the competition between the intralayercoupling and the entropy effect. In this connection, the theory is compared with thecomplex magnetic phase diagram of CeSb.ANNNI model, modulated structures, CeSb

• 社団法人日本物理学会の論文
• 1989-04-15

著者

• Nakanishi Kazuo

  Kanazawa Women's Junior College

関連論文

• Nonlinear Effect on the Axial Next-Nearest Neighbor Ising (ANNNI) Model. : II. Application to CeBi
• Absence of Partially Disordered States in the Axial Next Nearest-Neighbor Ising (ANNNI) Model
• Nonlinear Effect on the Axial Next-Nearest Neighbor Ising (ANNNI) Model: Application to CeSb

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