Piezo-driven sample rotation system with ultra-low electron temperature

Abstract

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.

22 pages, 6 figures

References in corpus (9)

• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• Colloquium: Majorana Fermions in nuclear, particle and solid-state physics
• Intrinsic Gap of the nu=5/2 Fractional Quantum Hall State
• Emulating anyonic fractional statistical behavior in a superconducting quantum circuit
• Recent Experimental Progress of Fractional Quantum Hall Effect: 5/2 Filling State and Graphene
• Contrasting Behavior of the 5/2 and 7/3 Fractional Quantum Hall Effect in a Tilted Field
• Competing ν= 5/2 fractional quantum Hall states in confined geometry
• Electron-Hole Asymmetric Chiral Breakdown of Reentrant Quantum Hall States