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Superconducting phonon spectroscopy using a low-temperature scanning tunneling microscopeThe low-temperature scanning tunneling microscope (STM) system described by LeDuc et al. (1987) was used to observe the phonon density of states effects in a superconductor. Using techniques based on those employed in macroscopic tunneling spectroscopy, electron tunneling current-voltage (I-V) spectra were measured for NbN and Pb, and dI/dV vs V spectra were measured using standard analog derivative techniques. I-V measurements on NbN and Pb samples under typical STM conditions showed no evidence for multiparticle tunneling effects.
Document ID
19890043866
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Leduc, H. G. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kaiser, W. J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hunt, B. D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bell, L. D. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Jaklevic, R. C. (Ford Motor Co. Dearborn, MI, United States)
Date Acquired
August 14, 2013
Publication Date
March 6, 1989
Publication Information
Publication: Applied Physics Letters
Volume: 54
ISSN: 0003-6951
Subject Category
SOLID-STATE PHYSICS
Distribution Limits
Public
Copyright
Other