A magnetic phase transition studied with high-Tc SQUIDs

被引：0
|
作者：
Hanson, M [1 ]
Ivanov, ZG
Johansson, C
Kislinski, Y
Larsson, P
机构：
[1] Chalmers Univ Technol, Dept Solid State Phys, S-41296 Gothenburg, Sweden
[2] Gothenburg Univ, S-41296 Gothenburg, Sweden
[3] Chalmers Univ Technol, Dept Microelect & Nanosci, S-41296 Gothenburg, Sweden
[4] RAS, AV Shubnikov Crystallog Inst, Moscow 117333, Russia
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷
关键词：
SQUID; superconductors; high-T-c; magnetic films;
D O I：
10.1016/S0304-8853(97)00700-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have used high-T-c SQUIDs to study the phase transition in a film of Mn3O4. The film was positioned on top of the SQUID, and the temperature of the film and the SQUID was varied in the range 30-60 K. By monitoring the voltage at the SQUID output we were able to observe a reproducable shift in the SQUID response in the range 30-50 K. This shift is related to the transition from the paramagnetic to the ferrimagnetic state of the Mn3O4 film. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：519 / 520
页数：2
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