Abrecht, M.
, Adare, A.
and Ekin, J.
(2007),
Magnetization and magnetoresistance of common alloy wires used in cryogenic instrumentation, Review of Scientific Instruments, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32177
(Accessed November 21, 2024)
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Magnetization and magnetoresistance of common alloy wires used in cryogenic instrumentation
Published
Author(s)
Mike Abrecht, Andrew Adare,
Abstract
We present magnetization and magnetoresistance data at liquid-helium and liquid-nitrogen temperatures for wire materials commonly used for instrumentation wiring of specimens, sensors, and heaters in cryogenic probes. The magnetic susceptibilities in Systeme International units at 4.2 K were found to be: Manganin 1.25x10-2, Nichrome 5.6x10-3, and phosphor bronze -3.3x10-5, indicating that phosphor bronze is the most suitable for high-field applications. We also show the ferromagnetic hysteresis loop of Constantan wire at liquid-helium temperature. The magnetoresistance of these four wires was relatively small: the changes in resistance at 4 K due to a 10 T transverse magnetic field are -2.56% for Constantan, -2.83% for Manganin, +0.69% for Nichrome, and +4.5% for phosphor bronze, compared to about +188% for a typical copper wire under the same conditions.Citation
Review of Scientific Instruments
Issue
046104
Pub Type
Journals
Download Paper
Keywords
Constantan, copper alloys, magnetization, magnetoresistance, Manganin, Nichrome, phosphor bronze
Citation
Issues
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Created April 15, 2007, Updated October 12, 2021