FIELD-INDUCED LEVEL-CROSSING AND CRYSTAL-STRUCTURE OF THE SINGLET GROUND-STATE SYSTEM [NI(C5H5NO)6] (NO3)2

被引：25

作者：

CARLIN, RL ^{[1
]}

JOUNG, KO ^{[1
]}

FILHO, AP ^{[1
]}

OCONNOR, CJ ^{[1
]}

SINN, E ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT CHEM,CHARLOTTESVILLE,VA 22901

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 02期

关键词：

D O I：

10.1088/0022-3719/12/2/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The compound (Ni(C5H5NO)6)(NO 3)2 crystallises in the space group R3 with the metal atom at the centre of the unit cell, which imposes a centre of inversion, and a three-fold rotation axis at the metal atom. The NO3- groups are positionally disordered. Susceptibility measurements at 1.60K on oriented single crystals of (Ni(C5H5NO) 6)(NO3)2 in applied fields clearly shows a singlet-doublet crossing at H1c=46.2+or-1.5 kOe. Susceptibilities at zero field are also presented. The data analyses yield D/kB approximately=5.69K for the singlet-doublet separation and zJ/kB approximately=-1.45K for the (subcritical) antiferromagnetic interaction.

引用

页码：293 / 301

页数：9

共 13 条

[1] FIELD-INDUCED MAGNETIC-ORDERING IN S=1 SINGLET GROUND-STATE SYSTEM NI(C5H5NO)6(CLO4)2 STUDIED BY SPECIFIC-HEAT [J].