A Scanning Tunneling Microscope as a Switch in a Nanocomputer

Scanning tunneling microscope operating as a spin diode

P. H. Penteado,1,2 F. M. Souza,2 A. C. Seridonio,3 E. Vernek,2 and J. C. Egues1 1Instituto de Fı́sica de São Carlos, Universidade de São Paulo, 13560-970, São Carlos, SP, Brazil 2Instituto de Fı́sica, Universidade Federal de Uberlândia, 38400-902, Uberlândia, MG, Brazil 3Departamento de Fı́sica e Quı́mica, Universidade Estadual Paulista Júlio de Mesquita Filho, 15385-000, Ilha Solteira, SP, Brazil....

Simulating Scanning Tunneling Microscope

Spatial Repartition of Current Fluctuations in a Scanning Tunneling Microscope

Scanning Tunneling Microscopy (STM) is a technique where the surface topography of a conducting sample is probed by a scanning metallic tip. The tip-to-surface distance is controlled by monitoring the electronic tunneling current between the two metals. The aim of this work is to extend the temporal range of this instrument by characterising the time fluctuations of this current on different su...

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...

Vibration isolation analysis for a scanning tunneling microscope

We analyze the efficiency of a vibration isolation system (VIS) for a scanning tunneling microscope as a function of the different parameters involved. The VIS consists of a stack of several metallic plates, separated by rubber elements with known properties. We show three-dimensional graphs obtained for different values of parameters such as rigidity (spring) constant (K), damping constant (C)...