Solid solutions TbFe1-xAlxO3 (0<=x<=1): Structure and magnetic behaviour

被引：21

作者：

Bombik, A

Lesniewska, B

Mayer, J

Oles, A

Pacyna, AW

Przewoznik, J

机构：

[1] H NIEWODNICZANSKI INST NUCL PHYS,PL-31342 KRAKOW,POLAND

[2] ACAD MIN & MET,FAC PHYS & NUCL TECHNIQUES,PL-30059 KRAKOW,POLAND

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 168卷 / 1-2期

关键词：

rare-earth orthoferrites; magnetic vacancies; magnetic susceptibility; compensation point; crystal structure; thermal analysis;

D O I：

10.1016/S0304-8853(96)00673-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic X-ray, neutron diffraction and DSC measurements for a solid solution of the TbFe1-xAlxO3 system have been carried out, The results obtained indicate an essential role for Al substitutions on the magnetic behaviour of the compounds examined. For low Al concentration, a radical reduction of magnetic susceptibility of the compounds has been observed. The increase in Al concentration (x = 0.4-0.7) generates a compensation temperature (similar to 35 K) in the system, This effect is responsible for the change in the type of Tb-Fe coupling (from ferromagnetic to antiferromagnetic).

引用

页码：139 / 148

页数：10

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