We report the design and development of a piezoelectric sample rotation system, and its integration into an Oxford Instruments Kelvinox 100 dilution refrigerator, for orientation-dependent studies of quantum transport in semiconductor nanodevices at millikelvin temperatures in magnetic fields up to 10 T. Our apparatus allows for continuous in situ rotation of a device through in two possible configurations. The first enables rotation of the field within the plane of the device, and the second allows the field to be rotated from in-plane to perpendicular to the device plane. An integrated angle sensor coupled with a closed-loop feedback system allows the device orientation to be known to within ±0.03° while maintaining the sample temperature below 100 mK.
Piezoelectric rotator for studying quantum effects in semiconductor nanostructures at high magnetic fields and low temperatures
L. A. Yeoh, A. Srinivasan, T. P. Martin, O. Klochan, A. P. Micolich, A. R. Hamilton; Piezoelectric rotator for studying quantum effects in semiconductor nanostructures at high magnetic fields and low temperatures. Rev. Sci. Instrum. 1 November 2010; 81 (11): 113905. https://doi.org/10.1063/1.3502645
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