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Micro-probe measurement in pulsed high magnetic fields

✍ Scribed by Eiji Ohmichi; Toshihito Osada

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
404 KB
Volume
346-347
Category
Article
ISSN
0921-4526

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✦ Synopsis

We present recent development in pulsed field experiments with small sensing devices or micro-probes, which are obtained by micromachining or microfabrication. The reduced dimensions of the device enable us to measure mg-order samples. As examples, we demonstrate the usability of magnetometers with use of a microcantilever and a microcapacitance in pulsed high magnetic fields of up to 40 T.

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Hc2 measurement in high pulsed fields, of type II superconductors is described. A special pick-up is used to measure the induced dM/dt while, simultaneously, an operational amplifier gives the derivative of the differential susceptibility (DDS). The double peak signal obtained decreases with increas