Piezo-driven rotator is convenient for tilted magnetic field experiments due to its precise angle control. However, the rotator itself and the sample mounted on it are difficult to be cooled down because of extra heat leaks and presumably bad thermal contacts from the piezo. Here, we report a piezo-driven sample rotation system designed for ultra-low temperature environment. The sample, as well as the rotating sample holder, can be cooled to as low as 25 mK by customized thermal links and thermal contacts. More importantly, the electron temperature in the electrical transport measurements can also be cooled down to 25 mK with the help of home-made filters. To demonstrate the application of our rotation system at ultra-low electron temperature, a measurement revealing tilt-induced localization and delocalization in the second Landau level of two-dimensional electron gas is provided.
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February 2019
Research Article|
February 08 2019
Piezo-driven sample rotation system with ultra-low electron temperature
Pengjie Wang
;
Pengjie Wang
1
International Center for Quantum Materials, Peking University
, Beijing 100871, China
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Ke Huang;
Ke Huang
1
International Center for Quantum Materials, Peking University
, Beijing 100871, China
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Jian Sun
;
Jian Sun
1
International Center for Quantum Materials, Peking University
, Beijing 100871, China
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Jingjin Hu;
Jingjin Hu
1
International Center for Quantum Materials, Peking University
, Beijing 100871, China
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Hailong Fu;
Hailong Fu
2
Department of Physics, The Pennsylvania State University
, University Park, Pennsylvania 16802, USA
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Xi Lin
Xi Lin
a)
1
International Center for Quantum Materials, Peking University
, Beijing 100871, China
3
CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences
, Beijing 100190, China
4
Collaborative Innovation Center of Quantum Matter
, Beijing 100871, China
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Rev. Sci. Instrum. 90, 023905 (2019)
Article history
Received:
December 03 2018
Accepted:
January 19 2019
Citation
Pengjie Wang, Ke Huang, Jian Sun, Jingjin Hu, Hailong Fu, Xi Lin; Piezo-driven sample rotation system with ultra-low electron temperature. Rev. Sci. Instrum. 1 February 2019; 90 (2): 023905. https://doi.org/10.1063/1.5083994
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