MAGNETIC ORDER OF PR IONS IN RELATED PEROVSKITE-TYPE PR123 COMPOUNDS

被引：8

作者：

GUILLAUME, M ^{[1
]}

FISCHER, P ^{[1
]}

ROESSLI, B ^{[1
]}

PODLESNYAK, A ^{[1
]}

SCHEFER, J ^{[1
]}

FURRER, A ^{[1
]}

机构：

[1] PAUL SCHERRER INST,CH-5232 VILLIGEN PSI,SWITZERLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 75卷 / 10期

关键词：

D O I：

10.1063/1.355390

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic order of Pr ions in polycrystalline, tetragonal PrBa2Cu3O6.2 has been studied by neutron-diffraction measurements. The basic ordering consists of an antiferromagnetic arrangement with the propagation vector k=[1/2, 1/2, 1/2], but the magnetic ordering is imperfect due to finite correlation length xi(c) (10+/-1) angstrom along the c axis. The Neel temperature is determined to be T(N)=(12+/-1) K, and the magnetic saturation moment of the Pr ions turns out to be (1.9+/-0.2) mu(B). The distance Pr-O(2) compared in several related perovskite-type Pr compounds correlates with the Neel temperature in accordance with the superexchange interaction.

引用

页码：6331 / 6333

页数：3

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