Observation of anomalous single-magnon scattering in half-metallic ferromagnets by chemical pressure control

被引：55

作者：

Akimoto, T

Moritomo, Y ^{[1
]}

Nakamura, A

Furukawa, N

机构：

[1] Nagoya Univ, Ctr Integrated Res Sci & Engn, Nagoya, Aichi 4648601, Japan

[2] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 4648603, Japan

[3] Aoyama Gakuin Univ, Dept Phys, Tokyo 1578572, Japan

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.85.3914

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature variation of the resistivity rho and specific heat C have been measured for prototypical half-metallic ferromagnets, R0.6Sr0.4MnO31,by controlling the one-electron bandwidth W. We have found variations in the temperature scalings of rho from similar toT(2) (R = La, and Nd) to similar toT(3) (R = Sm), and have interpreted the T-3 law in terms of the anomalous single-magnon scattering process in the half-metallic system.

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页码：3914 / 3917

页数：4

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