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

Adam Sciambi; Andrew Keller; David Goldhaber-Gordon; John Bartel; Matthew Pelliccione

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

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arxiv 1211.6546 v1 pith:ARSYG5E7 submitted 2012-11-28 physics.ins-det cond-mat.mes-hall

Matthew Pelliccione , Adam Sciambi , John Bartel , Andrew Keller , David Goldhaber-Gordon This is my paper · ORCID

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keywords scanningcryogen-freedesigndilutiongatemicroscoperecentrefrigerator

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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.

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