High resolution automatic magnetometer using a superconducting magnet: Application to high field susceptibility measurements
Flux creep phenomenon occurs when a magnetic sample is displaced inside a superconducting solenoid. The magnetization measurement by the classical flux integration technique is disturbed by this phenomenon. We describe a method to eliminate this perturbation. At a fixed field, using a special compen...
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Published in | IEEE transactions on magnetics Vol. 8; no. 3; pp. 630 - 633 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
IEEE
01.09.1972
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Subjects | |
Online Access | Get full text |
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Summary: | Flux creep phenomenon occurs when a magnetic sample is displaced inside a superconducting solenoid. The magnetization measurement by the classical flux integration technique is disturbed by this phenomenon. We describe a method to eliminate this perturbation. At a fixed field, using a special compensated pick-up coil, the measurements, done at regular intervals, tend toward a final value proportional to the moment. Using an integrating digital voltmeter as fluxmeter, the short term reproducibility reaches 2 to 3.10 -6 . The apparatus is automatic. It allows measurements such as high field susceptibilities, law of approach to saturation, and anisotropic spontaneous magnetization. |
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Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 |
ISSN: | 0018-9464 1941-0069 |
DOI: | 10.1109/TMAG.1972.1067469 |