Novel integration of a 6T cryogen-free magneto-optical system with a variable temperature sample using a single cryocooler

被引：0

作者：

Berryhill, A. B. ^{[1
]}

Coffey, D. M. ^{[1
]}

McGhee, R. W. ^{[1
]}

Burkhardt, E. E. ^{[1
]}

机构：

[1] Cryomagnet Inc, Oak Ridge, TN 37830 USA

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOLS 53A AND 53B | 2008年 / 985卷

关键词：

heat switch; superconducting magnet; magneto-optical;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Cryomagnetics' new "C-Mag Optical" Magneto-Optic Property Measurement System is a versatile materials and device characterization system that allows the researcher to simultaneously control the applied magnetic field and temperature of a sample while studying its electrical and optic properties. The system integrates a totally liquid cryogen-free 6T superconducting split-pair magnet with a variable temperature sample space, both cooled using a single 4.2K pulse tube refrigerator. To avoid warming the magnet when operating a sample at elevated temperatures, a novel heat switch was developed. The heat switch allows the sample temperature to be varied from 10K to 300K while maintaining the magnet at 4.2K or below. In this paper, the design and performance of the overall magnet system and the heat switch will be presented. New concepts for the next generation system will also be discussed.

引用

页码：1523 / 1528

页数：6