Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 20: Cryotechnique & Measuring Devices: Poster Session

TT 20.6: Poster

Montag, 7. März 2016, 15:00–18:00, Poster D

Design of a vector magnetometer for three dimensional magnetization measurements — •Markus Kleinhans, Marco Halder, Christopher Duvinage, and Christian Pfleiderer — Physik-Department, Technische Universitaet Muenchen, 85748 Garching, Germany

In magnetically ordered systems, the fundamental order parameter is the magnetization which is, in general, a three dimensional pseudovector. However, conventional magnetometers record the projection of the moment along the applied magnetic field hence missing key information of systems with complex magnetic anisotropies. We report the design of a bespoke set of pickup coils for a vibrating sample magnetometer that allow simultaneous measurements of all three components of the magnetization for temperatures down to 3 K and in magnetic fields up to 9 T. We demonstrate the potential of this technique in a study of selected anisotropic ferromagnets, namely Co, Nd₂Fe₁₄B, and SmCo₅.