VARIABLE-TEMPERATURE INSERT FOR AC SUSCEPTIBILITY MEASUREMENTS AT AC FIELD AMPLITUDES UP TO 0.1-T

被引：5

作者：

GOMORY, F

LOBOTKA, P

FROHLICH, K

机构：

[1] Institute of Electrical Engineering, Slovak Academy of Sciences

来源：

CRYOGENICS | 1994年 / 34卷 / 10期

关键词：

AC SUSCEPTIBILITY MEASUREMENTS; HIGH T-C SUPERCONDUCTORS; TEMPERATURE REGULATION;

D O I：

10.1016/0011-2275(94)90070-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An insert for a.c. susceptibility measurements on high T-c superconductors was constructed which, in the temperature interval 80-115K allows one to set sample temperature by combining rapid response (>1 K min(-1)) with high stability (within +/-0.01 K) The copper coil involved, immersed in liquid nitrogen and fed by a 20 W power amplifier, can generate a.c. fields with an amplitude of 1 mT at 100 kHz or 100 mT at 100 Hz. The simple construction and low costs are further advantages of the model.

引用

页码：837 / 838

页数：2