Design of a scanning gate microscope in a cryogen-free dilution refrigerator

Abstract

We report on our design of a scanning gate microscope housed in a cryogen-free dilution refrigerator with a base temperature of 15 mK. The recent increase in efficiency of pulse tube cryocoolers has made cryogen-free systems popular in recent years. However, this new style of cryostat presents challenges for performing scanning probe measurements, mainly as a result of the vibrations introduced by the cryocooler. We demonstrate scanning with root-mean-square vibrations of 0.8 nm at 3 K and 2.1 nm at 15 mK in a 1 kHz bandwidth with our design.

29 pages, 10 figures

References in corpus (10)

• Observation of the two-channel Kondo effect
• Unexpected features of branched flow through high-mobility two-dimensional electron gases
• Imaging Coulomb Islands in a Quantum Hall Interferometer
• Magnetic Resonance Force Microscopy of paramagnetic electron spins at millikelvin temperatures
• Impedance-matched low-pass stripline filters
• Millikelvin thermal and electrical performance of lossy transmission line filters
• Vertical Field-Effect Transistor Based on Wavefunction Extension
• Low Temperature Electrostatic Force Microscopy of a Deep Two Dimensional Electron Gas using a Quartz Tuning Fork
• A Millikelvin Scanned Probe for Measurement of Nanostructures
• Virtual Scanning Tunneling Microscopy: A Local Spectroscopic Probe of 2D Electron Systems

Cited by in corpus (21)

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• Atomic resolution STM in a cryogen free dilution refrigerator at 15 mK
• Vibration isolation with high thermal conductance for a cryogen-free dilution refrigerator
• Mechanical dissipation below 1$\mu$Hz with a cryogenic diamagnetic-levitated micro-oscillator
• Scanning nitrogen-vacancy magnetometry down to 350mK
• Vibration decoupling system for massive bolometers in dry cryostats
• A microkelvin cryogen-free experimental platform with integrated noise thermometry
• Cryogen-free variable temperature scanning SQUID microscope
• Scanning SQUID microscopy in a cryogen-free dilution refrigerator
• Cryogen-free scanning gate microscope for the characterization of Si/Si${}_{0.7}$Ge${}_{0.3}$ quantum devices at milli-Kelvin temperatures
• Piezo-driven sample rotation system with ultra-low electron temperature
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• An ultrahigh-vacuum cryostat for simultaneous scanning tunneling microscopy and magneto-transport measurements down to 400mK
• Helium surface fluctuations investigated with superconducting coplanar waveguide resonator
• Characterization of two fast-turnaround dry dilution refrigerators for scanning probe microscopy
• Local imaging of high mobility two-dimensional electron systems with virtual scanning tunneling microscopy
• Thermal coupling of silicon oscillators in cryogen-free dilution refrigerators
• A Milli-Kelvin Atomic Force Microscope Made of Glass
• Isolation solution for extreme environmental vibrations for quantum-enabling cryogenic setups installed on raised frames