File:First STM.jpg
Original file (2,592 × 1,944 pixels, file size: 1.33 MB, MIME type: image/jpeg)
Captions
Captions
| Description |
This is a Nobel Prize winning example of doing more with less First Scanning tunneling microscope IBM Research Zurich 1981 (Explanation from Deutsches Museum with wiki hyperlinks added by me) The scanning tunneling microscope has given rise to new possibilities of investigating surfaces on the scale of individual atoms. Rather than "seeing" the atoms, the instrument "feels" them by scanning the surface line by line with a very sharp tip at a constant distance of a few atomic diameters. This distance is minimized in a feedback loop by the tunneling current tip and sample when a voltage is applied. The current is extremely dependent on the distance between tip and sample - the smaller the distance, the larger the current. Reducing the distance by only one-tenth of a nanometer (a millonth of a millimeter) increase the current tenfold. A tripod of piezoelectric rods allows very precise movement of the microscope tip in all directions. By applying and removing a voltage, these elements expand and shrink, between 0.1 and 10 picometers (a billionth of a millimeter) per millivolt. The STM measurement results constitute a field of scanned lines from which a three-dimensional image of the surface can be obtained in millionfold magnification e.g. by computer image processing. Since the breakthrough of the first STM in 1981, numerous further developments and variations quickly led to a wealth of new knowledge in quite diverse research areas. The STM principle is generally considered a key in nanotechnology owing to its capability to image surfaces and investigate their properties on the nanometer scale. and ultimately, even to change structures atom by atom. The first significant step in the latter direction was the controlled deposition of individual atoms in 1990. The invention of the scanning tunneling microscope brought Gerd Binnig , a German, and Heinrich Rohrer, a Swiss, both from IBM Zurich Reasearch Laboratory, the physics Nobel prize in 1986. en.wikipedia.org/wiki/Scanning_tunneling_microscope See also: www.deutsches-museum-bonn.de/ausstellungen/meisterwerke/2... i061706 120 |
| Date | |
| Source | First Scanning Tunneling Microscope Deutsches Museum |
| Author | J Brew |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
|---|
Licensing edit
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
|
This image, originally posted to Flickr, was reviewed on August 15, 2008 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:07, 15 August 2008 | | 2,592 × 1,944 (1.33 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | {{Information |Description= This is a Nobel Prize winning example of doing more with less First [http://en.wikipedia.org/wiki/Scanning_tunneling_microscope Scanning tunneling microscope] IBM Research Zurich 1981 (Explanation from Deutsches Museum with |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on el.wikipedia.org
- Usage on nl.wikipedia.org
