A millikelvin scanning tunneling microscope in ultra-high vacuum with adiabatic demagnetization refrigeration
Taner Esat,
Peter Borgens,
Xiaosheng Yang
et al.
Abstract:We present the design and performance of an ultra-high vacuum (UHV) scanning tunneling microscope (STM) that uses adiabatic demagnetization of electron magnetic moments for controlling its operating temperature in the range between 30 mK and 1 K with the accuracy of up to 7 µK. The time available for STM experiments at 50 mK is longer than 20 h, at 100 mK about 40 h. The single-shot adiabatic demagnetization refrigerator (ADR) can be regenerated automatically within 7 hours while keeping the STM temperature be… Show more
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