LOW-TEMPERATURE 2-AXIS GONIOMETER WITH ACCURATE TEMPERATURE CONTROL

We have designed a probe to rotate a sample around two independent axe s in a magnetic field of up to 8 T and at temperatures varying from 3 K to room temperature. The sample is in very good thermal contact with a thermometer and a regulated heater, enabling precise temperature co ntrol. Pogo pins enable quick electrical connections to the sample. Tw o computer-controlled stepper motors rotate the sample around the two independent axes. This probe was primarily designed to investigate the anisotropy of the critical currents of superconducting thin films in a magnetic field.