MAGNETIC-STRUCTURE AND WEAK FERROMAGNETISM OF LA2NIO4+DELTA

被引：36

作者：

YAMADA, K ^{[1
]}

OMATA, T ^{[1
]}

NAKAJIMA, K ^{[1
]}

HOSOYA, S ^{[1
]}

SUMIDA, T ^{[1
]}

ENDOH, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

来源：

PHYSICA C | 1992年 / 191卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90625-M

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic properties of La2NiO4+delta have been studied from single crystals with different oxygen concentrations. For the stoichiometric sample a three-dimensional antiferromagnetic long range order develops below T(N) = 325 K. In contrast to La2CuO4 no peak but only a small kink appears at T(N) in the thermal evolution of the magnetic susceptibility which is not due to the spin canting out of the NiO2 plane. A transition to the spin canted structure associated with a net weak ferromagnetic moment takes place at the structural phase transition to the low temperature tetragonal phase. For the nonstoichiometric sample two phases with and without spin canting coexist.

引用

页码：15 / 22

页数：8

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