Direct Observation of Local Shielding Currents in Superconducting Thin Films under Low Magnetic Field by Scanning Superconducting Quantum Interference Device Microscopy

2012 ◽  
Vol 51 ◽  
pp. 095804 ◽  
Author(s):  
Shunichi Arisawa ◽  
Kazuya Mochiduki ◽  
Kyungsung Yun ◽  
Takeshi Hatano ◽  
Ienari Iguchi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Direct Observation ◽  
Quantum Interference ◽  
Superconducting Thin Films ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference ◽  
Low Magnetic Field

TESTS OF CRYOGENIC SQUID FOR GEOMAGNETIC FIELD MEASUREMENTS

Geophysics ◽  
1975 ◽  
Vol 40 (2) ◽  
pp. 269-284 ◽  
Author(s):  
J. E. Zimmerman ◽  
W. H. Campbell
Keyword(s):  
Magnetic Field ◽  
Geomagnetic Field ◽  
Quantum Interference ◽  
Field Tests ◽  
Field Measurements ◽  
Fluxgate Magnetometer ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference ◽  
Field Fluctuations ◽  
Geomagnetic Measurements

A type of cryogenic SQUID (superconducting quantum interference device) magnetometer was designed for geomagnetic measurements. Field tests of the instrument including comparisons to observatory variometers, a rubidium magnetometer, an induction loop, and a fluxgate magnetometer showed the new cryogenic systems to be reliable, accurate, portable, and simple to operate. Directional measurements of natural magnetic field fluctuations as small as 0.0001 gamma with periods from 0.5 sec to several hours were demonstrated.

Sign in / Sign up

Export Citation Format

Share Document