Scanning Tunneling Spectroscopy in Anisotropic s-Wave Superconductors

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3300-3303 ◽  
Author(s):  
H. Suderow ◽  
J. G. Rodrigo ◽  
P. Martinez-Samper ◽  
S. Vieira ◽  
J. P. Brison ◽  
...  

We discuss Scanning Tunneling Microscopy and Spectroscopy (STM/S) measurements at very low temperatures in single crystals of the non magnetic borocarbide superconductors RNi 2 B 2 C ( R = Y , Lu , T c=15.5 and 16.5 K) and in MgB 2. The tunneling spectra in some regions of the surface show a clear reduction of the anisotropy of the superconducting gap.

2015 ◽  
Vol 44 (4) ◽  
pp. 970-987 ◽  
Author(s):  
Shinya Kano ◽  
Tsukasa Tada ◽  
Yutaka Majima

Scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) can characterize intriguing nanoparticle properties towards solid-state nanodevices.


1999 ◽  
Vol 60 (4) ◽  
pp. 2619-2626 ◽  
Author(s):  
A. Depuydt ◽  
C. Van Haesendonck ◽  
N. S. Maslova ◽  
V. I. Panov ◽  
S. V. Savinov ◽  
...  

1998 ◽  
Vol 13 (9) ◽  
pp. 2389-2395 ◽  
Author(s):  
D. L. Carroll ◽  
P. M. Ajayan ◽  
S. Curran

The recent application of tunneling probes in electronic structure studies of carbon nanotubes has proven both powerful and challenging. Using scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS), local electronic properties in ordered aggregates of carbon nanotubes (multiwalled nanotubes and ropes of single walled nanotubes) have been probed. In this report, we present evidence for interlayer (concentric tube) interactions in multiwalled tubes and tube-tube interactions in singlewalled nanotube ropes. The spatially resolved, local electronic structure, as determined by the local density of electronic states, is shown to clearly reflect tube-tube interactions in both of these aggregate forms.


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