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Updated: Dec 13, 2025

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Miniature capacitive Faraday force magnetometer for magnetization measurements at low temperatures and high magnetic
Dominic Blosser1, Leonardo Facheris1, Andrey Zheludev1
1Laboratory for Solid State Physics, ETH Zürich, 8093 Zürich, Switzerland.
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)2CuBr4 (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 m2 (10-4 emu). The device is miniaturized to fit in almost any cryostat.
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