CRYSTAL AND MAGNETIC-STRUCTURES OF U2NI2SN INVESTIGATED BY NEUTRON-DIFFRACTION AND SN-119 MOSSBAUER-SPECTROSCOPY

被引：42

作者：

BOUREE, F

CHEVALIER, B

FOURNES, L

MIRAMBET, F

ROISNEL, T

TRAN, VH

ZOLNIEREK, Z

机构：

[1] CNRS,CHIM SOLIDE LAB,F-33405 TALENCE,FRANCE

[2] POLISH ACAD SCI,W TRZEBIATOWSKI INST LOW TEMP & STRUCT RES,PL-50950 WROCLAW,POLAND

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 138卷 / 03期

关键词：

D O I：

10.1016/0304-8853(94)90052-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The U2Ni2Sn stannide has been studied by means of neutron powder diffraction and Mossbauer spectroscopy. This compound crystallizes in the tetragonal P4/mbm space group in an ordered version of the U3Si2-type structure and orders antiferromagnetically below T-N = 25(1) K. At T = 1.5 K the magnetic structure is collinear with uranium magnetic moment (1.05(5)mu(B)) perpendicular to the tetragonal c-axis. Sn-119 Mossbauer spectroscopy at 4.2 K shows that tin atoms see a zero hyperfine field, in agreement with the proposed antiferromagnetic order.

引用

页码：307 / 313

页数：7

共 19 条

[1]

BROWN PJ, 1970, INT TABLES CRYSTALLO, VC

[2] LOW-TEMPERATURE STRUCTURE OF UNI2SN [J].