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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