Title :
Scanning tunneling spectroscopic studies of superconducting NbN single crystal thin films at 4.2 K
Author :
Kashiwaya, S. ; Koyanagi, M. ; Shoji, A. ; Matsuda, M. ; Shibata, H.
Author_Institution :
Electrotech. Lab., Ibaraki, Japan
fDate :
3/1/1991 12:00:00 AM
Abstract :
A low-temperature scanning tunneling microscope (LT-STM) has been constructed to study the microscopic properties of superconductors. It has atomic resolution from room temperature to 4.2 K. Conductance spectra obtained between a Pt tip and a NbN thin film agreed well with theoretical curves based on the BCS (Bardeen-Cooper-Schrieffer) theory. This indicates that STM actually has the potential for probing the microscopic properties of superconductors
Keywords :
niobium compounds; scanning tunnelling microscopy; superconducting thin films; type II superconductors; 4.2 to 293 K; BCS; atomic resolution; low-temperature scanning tunneling microscope; microscopic properties; superconducting NbN single crystal thin films; Helium; Laboratories; Microscopy; Spatial resolution; Spectroscopy; Superconducting thin films; Superconductivity; Temperature; Tunneling; Vibrations;
Journal_Title :
Magnetics, IEEE Transactions on
