Miniature capacitive Faraday force magnetometer for magnetization measurements at low temperatures and high magnetic fields
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2020-07
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Journal Article
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Abstract
A Faraday force magnetometer is presented for measurements of magnetization at temperatures down to 100 mK and in magnetic fields up to 14 T. The specimen is mounted on a flexible cantilever forming a force-sensing capacitor in combination with a fixed back plate. Two different cantilever designs are presented. A torsion resistant cantilever allows us to measure the magnetization of highly anisotropic single crystal samples. Measurements of the metal organic quantum magnets (C5H12N)(2)CuBr4 (BPCB) and NiCl2 . 4 SC(NH2)(2) (DTN) demonstrate the device's capabilities. Routinely, a specimen's magnetic moment is measured with a resolution better than 10(-7) A m(2) (10(-4) emu). The device is miniaturized to fit in almost any cryostat.
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91 (7)
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73905
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American Institute of Physics
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03855 - Zheludev, Andrey / Zheludev, Andrey
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