Magnetic excitations from the S=1/2 two-leg ladders in La6Ca8Cu24O41

被引：51

作者：

Matsuda, M ^{[1
]}

Katsumata, K

Eccleston, RS

Brehmer, S

Mikeska, HJ

机构：

[1] Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[3] Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.372676

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the magnetic excitations from the S=1/2 two-leg ladders in La6Ca8Cu24O41. In order to understand the full dispersion of the magnon branch for the lowest triplet excitation, effects of the four-spin and the next-nearest-neighbor (diagonal) exchange interactions are analyzed. We also compare the parameters obtained from the fit to the full dispersion curve with those obtained in the related compounds. (C) 2000 American Institute of Physics. [S0021-8979(00)66408-3].

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页码：6271 / 6273

页数：3

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