High-transition temperature superconducting quantum interference device microscope

被引：91
作者：
Lee, TS [1 ]
Dantsker, E [1 ]
Clarke, J [1 ]
机构：
[1] UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1996年 / 67卷 / 12期
关键词：
D O I：
10.1063/1.1147570
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A microscope has been constructed in which a high-transition temperature dc superconducting quantum interference device (SQUID) in vacuum is brought to within 140 mu m of samples at room temperature and pressure. The SQUID is mounted on the upper end of a sapphire rod, cooled to liquid nitrogen temperature, below a 75-mu m thick sapphire window. Samples can either be placed directly on the window or scanned over the SQUID to produce magnetic images. A square-washer SQUID with inner and outer dimensions of 30 and 50 mu m can resolve 130 mu m magnetic features. The instrument is intended primarily for biological applications. (C) 1996 American Institute of Physics.
引用
收藏
页码：4208 / 4215
页数：8
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