Spin wave anomalies and phonons at low temperature in La0.875Sr0.125MnO3

被引：5
|
作者：
Reutler, P
Moussa, F [1 ]
Hennion, M
Wang, F
Revcolevschi, A
机构：
[1] CEA Saclay, CNRS, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
[2] Univ Paris 11, Lab Physicochim Solides, F-91405 Orsay, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 242卷
关键词：
correlated electron systems; magnetoresistance-giant; neutron scattering; spin waves;
D O I：
10.1016/S0304-8853(01)01022-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the diagram of La1-xSrxMnO3 the compound with x = 0.125, exhibits, below T, = 181 K. a ferromagnetic phase. At T-O'O'" = 159 K, a magneto-structural transition occurs with amazing properties. New superstructure Bragg peaks appear. At related q-values. the spin wave energies split and lock at the values of phonon modes. This suggests a complex ground state with mixed magneto-vibrational excitations. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：689 / 691
页数：3
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