| Autor: |
Novoselov, Kostya S., Dubonos, Sergey V., Morozov, Sergey V., Van Den Bergen, Dirk, Maan, Jan Kees, Geim, A. K. |
| Předmět: |
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| Zdroj: |
International Journal of Nanoscience; Feb-Apr2004, Vol. 3 Issue 1/2, p87-94, 8p |
| Abstrakt: |
Nanometer-scale movements of domain walls in uniaxial garnet films have been studied by means of micromagnetization measurements using miniature gold and semiconductor Hall probes. At helium temperatures the domain walls are found to move by discrete jumps, which we attribute to pinning on isolated defects, and we were able to measure local hysteresis loops associated with pinning on individual pinning centers. The temperature dependence of the coercive field of a single pinning center allowed us to evaluate the characteristic energy and characteristic volume of the pinning center. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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