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Cryogenic variable temperature ultrahigh vacuum scanning tunneling microscope

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3 Author(s)
Foley, E.T. ; Beckman Institute and Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, Illiniois 61801 ; Kam, A.F. ; Lyding, J.W.

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A cryogenic variable temperature ultrahigh vacuum (UHV) scanning tunneling microscope (STM) has been developed. This design utilizes a novel vibration isolation that provides an active thermal link to the cooling source without the standard tradeoff of compromising mechanical isolation. A welded bellows serves as the basis for the vibration isolation system. This bellows houses a heat exchanger which uses helium gas to form a thermal link between the STM and the cryogenic. This STM is fully integrated into a multichamber UHV STM system now in place in our laboratory and atomic resolution operation is demonstrated from 11 to 300 K. © 2000 American Institute of Physics.

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Review of Scientific Instruments  (Volume:71 ,  Issue: 9 )