ULTRAMETRICITY, INCOMMENSURABILITY, AND FIELD-INDUCED TRANSITIONS

被引：21

作者：

MACHIDA, K

HORI, Y

NAKANO, M

机构：

[1] Department of Physics, Okayama University

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.70.61

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The charge- or spin-density-wave formation in one-dimensional electron systems under an incommensurate potential is shown to be characterized by infinitely many order parameters and infinitely many mean-field solutions with almost degenerate energies. The complexity of the solutions is described by ultrametricity. The observed field-induced spin-density-wave transition of 2D systems is discussed in this context.

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页码：61 / 64

页数：4

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