Tunneling spectroscopy study ofYBa2Cu3O7thin films using a cryogenic scanning tunneling microscope

1990 ◽  
Vol 41 (13) ◽  
pp. 8904-8911 ◽  
Author(s):  
R. Wilkins ◽  
M. Amman ◽  
R. E. Soltis ◽  
E. Ben-Jacob ◽  
R. C. Jaklevic
Keyword(s):  
Scanning Tunneling Microscope ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Spectroscopy Study ◽  
Tunneling Microscope

THE ATOMIC AND ELECTRONIC STRUCTURE OF THE SINGLE STEPS ON THE Si(001) SURFACE

1993 ◽  
Vol 07 (09) ◽  
pp. 591-599 ◽  
Author(s):  
TOSHIHIRO UCHIYAMA
Keyword(s):  
Electronic Structure ◽  
Solid Surface ◽  
Scanning Tunneling Microscope ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Vicinal Surface ◽  
Tunneling Microscope ◽  
Atomic And Electronic Structure

Recent development of the scanning tunneling microscope (STM), which is one of the most powerful tools to study solid surface, has given the atomic-resolution images of the terraces and steps on the Si(001) vicinal surface. Around the S A step, the spectrum of the scanning tunneling spectroscopy (STS) exhibits a few characteristic peaks. This observation suggests that there exists an unique state at the step edge. In this review, I describe the atomic and electronic structure of the single steps on the Si(001) surface.

Scanning tunneling microscope/scanning tunneling spectroscopy investigation of the structural modulation on the surface of cleaved Bi2Sr2CaCu2Oy, single crystal

1995 ◽  
Vol 10 (4) ◽  
pp. 817-822 ◽  
Author(s):  
Wu Ting ◽  
R. Itti ◽  
Y. Ishimaru ◽  
G. Gu ◽  
Y. Enomoto ◽  
...  
Keyword(s):  
Single Crystals ◽  
Scanning Tunneling Microscope ◽  
Current Mode ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Electronic Density ◽  
Tunneling Microscope ◽  
Structural Modulation ◽  
Stm Images

The surface of cleaved Bi2Sr2 CaCu2O3 (Bi2212) single crystals has been studied by means of scanning tunneling microscope (STM) and scanning tunneling spectroscopy (STS) at room temperature in ultrahigh vacuum. We obtain atomic images of the BiO surface using logarithmic current mode and conventional mode. It is demonstrated that the Bi atoms in the BiO plane are not missing. Some Bi atoms are depressed down below the BiO surface. STS obtained at different places of the surface shows more or less the same feature, indicating that local electronic density of states does not change much due to the depression or the well-known structural modulation. The possible origins of the variation in the period of the structural modulation in the BiO plane of cleaved Bi2212 single crystals extracted from STM images are also studied.

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