Electrochemically etched Ni tips in a constant-current mode for spin-polarized scanning tunneling microscopy

2014 ◽  
Vol 32 (6) ◽  
pp. 061801 ◽  
Author(s):  
Hui Chen ◽  
Wende Xiao ◽  
Xu Wu ◽  
Kai Yang ◽  
Hong-Jun Gao
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Current Mode ◽  
Constant Current ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Spin Polarized ◽  
Constant Current Mode

Scanning tunneling microscopy of polymers: A status report

1989 ◽  
Vol 47 ◽  
pp. 330-331
Author(s):  
P.E. Russell ◽  
I.H. Musselman
Keyword(s):  
High Resolution ◽  
Scanning Tunneling Microscopy ◽  
Sample Surface ◽  
Atomic Scale ◽  
Constant Current ◽  
Scanning Tunneling ◽  
Status Report ◽  
Tunneling Microscopy ◽  
Research Issues ◽  
Wide Range

Scanning tunneling microscopy (STM) has evolved rapidly in the past few years. Major developments have occurred in instrumentation, theory, and in a wide range of applications. In this paper, an overview of the application of STM and related techniques to polymers will be given, followed by a discussion of current research issues and prospects for future developments. The application of STM to polymers can be conveniently divided into the following subject areas: atomic scale imaging of uncoated polymer structures; topographic imaging and metrology of man-made polymer structures; and modification of polymer structures. Since many polymers are poor electrical conductors and hence unsuitable for use as a tunneling electrode, the related atomic force microscopy (AFM) technique which is capable of imaging both conductors and insulators has also been applied to polymers.The STM is well known for its high resolution capabilities in the x, y and z axes (Å in x andy and sub-Å in z). In addition to high resolution capabilities, the STM technique provides true three dimensional information in the constant current mode. In this mode, the STM tip is held at a fixed tunneling current (and a fixed bias voltage) and hence a fixed height above the sample surface while scanning across the sample surface.

scholarly journals Resolving Complex Atomic-Scale Spin Structures by Spin-Polarized Scanning Tunneling Microscopy

2001 ◽  
Vol 86 (18) ◽  
pp. 4132-4135 ◽  
Author(s):  
D. Wortmann ◽  
S. Heinze ◽  
Ph. Kurz ◽  
G. Bihlmayer ◽  
S. Blügel
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Atomic Scale ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Spin Structures ◽  
Spin Polarized

Scanning tunneling microscopy with spin-polarized electrons

1990 ◽  
Vol 80 (1) ◽  
pp. 5-6 ◽  
Author(s):  
R. Wiesendanger ◽  
H. J. G�ntherodt ◽  
G. G�ntherodt ◽  
R. J. Gambino ◽  
R. Ruf
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Polarized Electrons ◽  
Spin Polarized
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