Neutron scattering study of oxygen ordering and magnetic correlations in La2NiO4.11 and La2NiO4.125

被引：23

作者：

Nakajima, K

Endoh, Y

Hosoya, S

Wada, J

Welz, D

Mayer, HM

Graf, HA

Steiner, M

机构：

[1] TOHOKU UNIV, FAC SCI, DEPT PHYS, AOBA KU, SENDAI, MIYAGI 98077, JAPAN

[2] YAMANASHI UNIV, FAC ENGN, INST INORGAN SYNTH, KOFU, YAMANASHI 400, JAPAN

[3] HAHN MEITNER INST BERLIN GMBH, DEPT NE, D-14109 BERLIN, GERMANY

[4] UNIV TUBINGEN, INST KRISTALLOG, D-72070 TUBINGEN, GERMANY

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1997年 / 66卷 / 03期

关键词：

neutron scattering; La2NiO4; oxygen doping; incommensurate magnetic structure; oxygen ordering; electron-phonon coupling;

D O I：

10.1143/JPSJ.66.809

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed neutron scattering experiments on single crystals of La2NiO4+delta (delta = 0.11, and 0.125) to study the effect of oxygen doping on the structural and magnetic properties. The degree of the excess oxygen order strongly influences the local crystal structure and interlayer magnetic correlation. The intralayer magnetic correlation is depressed by doping in the commensurate region (delta less than or equal to 0.11), then turns to increase in the incommensurate region (delta > 0.11). Our experimental results are compared with existing results for oxygen and Sr doped La2NiO4.

引用

页码：809 / 817

页数：9

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