The device is used to measure the temperature and magnetic field dependent resistivity and the Hall effect using the Van der Pauw method. Currently, we have two sample holders with a contact distance of 8 x 8 mm² and 4 x 4 mm², respectively. The sample holders ensure a high temperature accuracy and stability due to the encapsulated design (± 0.1 K). Temperature control in the range between -50°C and +150°C is realized with two actively cooled Peltier elements. For the temperature dependent magnetoresistitvity measurements, the sample position can be chosen to be parallel or perpendicular to the magnetic field. A special holder for room temperature measurements at arbitrary angles can be used as well. The magnetic field can be applied from -1.0 to 1.0 Tesla, with an accuracy of 1 mT. Measurements are usually done under vacuum conditions (10^-3 mbar) or nitrogen atmosphere.

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