Magnetic short-range order in La0.85Sr0.15MnO3

被引：1

作者：

Hoffmann, JU

Hohlwein, D

Schneider, R

Moudden, AH

机构：

[1] Hahn Meitner Inst, Abt NE Gastgrp Tubingen, BENSC, D-14109 Berlin, Germany

[2] Univ Tubingen, Inst Kristallog, D-72070 Tubingen, Germany

[3] Lab Leon Brillouin, Saclay, France

来源：

PHYSICA B | 2000年 / 276卷

关键词：

paramagnetic scattering; short-range order; magneto-resistance; perovskite compounds;

D O I：

10.1016/S0921-4526(99)01715-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In a single crystal of La0.85Sr0.15MnO3 we studied the magnetic diffuse scattering in large areas of reciprocal space using the Flat-cone diffractometer E2 at BENSC in Berlin. At several temperatures the complete (hk0) plane has been recorded. In the paramagnetic phase, above T-c = 235 K, the diffuse scattering is concentrated around the "cubic" nuclear Bragg reflections and has been followed up to 320 K. We compare the intensity distribution with a modified molecular held theory using one parameter for the ferromagnetic double-exchange interaction. (C) 2000 Elsevier Science B.V. All nights reserved.

引用

页码：608 / 609

页数：2