Construction of silicon nanocolumns with the scanning tunneling microscope

Fabrication of silicon nanostructures with a scanning tunneling microscope

A technique is presented for fabricating Si nanostructures with a scanning tunneling microscope operated in air. The process involves the direct chemical modification of a H-passivated Si( 100) surface and a subsequent liquid etch. The chemically modified portions of the surface can withstand a deep ( > 100 nm) liquid etch of the unmodified regions with no etch degradation of the modified surfa...

Design and Construction of a Scanning Tunneling Microscope

This report describes the design and construction of a Scanning Tunneling Microscope (STM). A Scanning Tunneling Microscope is a relatively new instrument in the field of surface science and has the capability of atomic resolution of surfaces. This report presents some background theory pertinent to the understanding of the STM. Theories of electron tunnefing, STM operation, and control theory ...

Construction of a Low Temperature Scanning Tunneling Microscope

JacobTosado July 22, 2004 This paper discusses work I have done with the construction of a low temperature scanning tunneling microscope (LTSTM) and the operation of a scanning tunneling microscope (STM). A brief description to why a LTSTM is used and the background concerning that description, is covered. Mainly methods in STM imaging are described giving insight into two possible sources of i...

Simulating Scanning Tunneling Microscope

Theory of the scanning tunneling microscope.

We present a theory for tunneling between a real surface and a model probe tip, applicable to the recently developed "scanning tunneling microscope." The tunneling current is found to be proportional to the local density of states of the surface, at the position of the tip. The effective lateral resolution is related to the tip radius R and the vacuum gap distance d approximately as [(2 A)(R +d...