CRYSTAL-STRUCTURE AND COMPLEX MAGNETIC-BEHAVIOR OF A NOVEL URANIUM OXYPHOSPHIDE UCUPO

被引：41

作者：

KACZOROWSKI, D

ALBERING, JH

NOEL, H

JEITSCHKO, W

机构：

[1] UNIV MUNSTER,INST ANORGAN CHEM,D-48149 MUNSTER,GERMANY

[2] UNIV RENNES 1,CHIM SOLIDE & INORGAN MOLEC LAB,CNRS,URA 1495,F-35042 RENNES,FRANCE

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 216卷 / 01期

关键词：

URANIUM PNICTIDES; CRYSTAL STRUCTURE REFINEMENT; MAGNETIC PROPERTIES; ANTIFERROMAGNETS;

D O I：

10.1016/0925-8388(94)91052-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The crystal structure of UCuPO was determined from single-crystal X-ray data and refined to a residual of R = 0.033 for 192 structure factors and 12 variables. It has a tetragonal ZrCuSiAs-type structure: P4/nmm, a = 379.3(1) pm, c = 823.3(2) pm, Z = 2. Magnetisation and magnetic susceptibility measurements of a powder sample in the range 5-300 K show UCuPO to order antiferromagnetically at T-N = 220+/-2 K. Its chi(T) dependence appears to be highly anomalous with a strong upturn at low temperatures. The close relationship between UCuPO and U2Cu2P3O with respect to their crystal structures and their magnetic behaviour is discussed.

引用

页码：117 / 121

页数：5

共 19 条

[1] RELATIVISTIC CALCULATION OF ANOMALOUS SCATTERING FACTORS FOR X-RAYS [J].