We describe the construction and performance of a scanning tunneling microscope capable of taking maps of the tunneling density of states with sub-atomic spatial resolution at dilution refrigerator temperatures and high (14 T) magnetic fields. The fully ultra-high vacuum system features visual access to a two-sample microscope stage at the end of a bottom-loading dilution refrigerator, which facilitates the transfer of in situ prepared tips and samples. The two-sample stage enables location of the best area of the sample under study and extends the experiment lifetime. The successful thermal anchoring of the microscope, described in detail, is confirmed through a base temperature reading of 20 mK, along with a measured electron temperature of 250 mK. Atomically resolved images, along with complementary vibration measurements, are presented to confirm the effectiveness of the vibration isolation scheme in this instrument. Finally, we demonstrate that the microscope is capable of the same level of performance as typical machines with more modest refrigeration by measuring spectroscopic maps at base temperature both at zero field and in an applied magnetic field.
Skip Nav Destination
Article navigation
October 2013
Research Article|
October 03 2013
Design and performance of an ultra-high vacuum scanning tunneling microscope operating at dilution refrigerator temperatures and high magnetic fields
S. Misra;
S. Misra
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
B. B. Zhou;
B. B. Zhou
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
I. K. Drozdov;
I. K. Drozdov
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
J. Seo;
J. Seo
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
L. Urban;
L. Urban
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
A. Gyenis;
A. Gyenis
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
S. C. J. Kingsley;
S. C. J. Kingsley
2Oxford Instruments Omicron Nanoscience,
Tubney Woods
, Abingdon, Oxfordshire OX13 5QX, United Kingdom
Search for other works by this author on:
H. Jones;
H. Jones
2Oxford Instruments Omicron Nanoscience,
Tubney Woods
, Abingdon, Oxfordshire OX13 5QX, United Kingdom
Search for other works by this author on:
A. Yazdani
A. Yazdani
a)
1Department of Physics and Joseph Henry Laboratories,
Princeton University
, Princeton, New Jersey 08544, USA
Search for other works by this author on:
a)
Electronic mail: yazdani@princeton.edu
Rev. Sci. Instrum. 84, 103903 (2013)
Article history
Received:
August 05 2013
Accepted:
September 10 2013
Citation
S. Misra, B. B. Zhou, I. K. Drozdov, J. Seo, L. Urban, A. Gyenis, S. C. J. Kingsley, H. Jones, A. Yazdani; Design and performance of an ultra-high vacuum scanning tunneling microscope operating at dilution refrigerator temperatures and high magnetic fields. Rev. Sci. Instrum. 1 October 2013; 84 (10): 103903. https://doi.org/10.1063/1.4822271
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00