Nanopicture of the Day

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March 11, 2004

Cobalt Electron Swirls

Source:  Joseph Stroscio

      References:

"A Low Temperature STM System for the Study of Quantum and Spin Electronic Systems", Stroscio, J.A., Celotta, R.J., Blankenship, S., Hudson, E., and Fein, A.P., Proceedings of the 4th International Workshop on Quantum Functional Devices, Kanazawa, Japan, 145-146 (2000).

Description:

Single atoms and subatomic particles, like electrons or photons, can behave in very unusual ways unpredictable by the classical laws of physics that govern larger objects. This particular structure (about 8nm x 8nm in size) was made with a scanning tunneling microscope at a very cold temperature of 2.3 Kelvin (about -455 degrees Fahrenheit). The larger blue peaks (upper left and lower right) are a pair of cobalt atoms, while the two smaller peaks are single cobalt atoms. The swirls on the copper surface illustrate how the cobalt and copper electrons interact with each other.

 

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