Scanning tunneling microscopy with spin-polarized electrons
| Autor: | Richard Joseph Gambino, Roland Wiesendanger, R. Ruf, Gernot Güntherodt, H.-J. Güntherodt |
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| Rok vydání: | 1990 |
| Předmět: |
Materials science
Spins Condensed matter physics Spin polarization business.industry Spin polarized scanning tunneling microscopy Electron Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Condensed Matter::Materials Science Optics Ferromagnetism law Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons General Materials Science Scanning tunneling microscope business Single crystal Quantum tunnelling |
| Zdroj: | Zeitschrift f�r Physik B Condensed Matter. 80:5-6 |
| ISSN: | 1434-6036 0722-3277 |
| DOI: | 10.1007/bf01390646 |
| Popis: | We present a short outline of the first STM experiments with spin-polarized electrons performed in ultrahigh vacuum by using ferromagnetic CrO2 tips and a Cr(001) single crystal surface. A clear distinction can be made between topographic STM line scans obtained with a non-magnetic tungsten tip and those obtained with a ferromagnetic CrO2 tip, which are modified due to an additional contribution from spin-dependent vacuum tunneling. STM therefore has the potential to measure the local electron spin polarization of the free surface as well as the spatial distribution of spins on the atomic scale. |
| Databáze: | OpenAIRE |
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