In situ multifrequency ferromagnetic resonance and x-ray magnetic circular dichroism investigations on Fe/GaAs(110) : Enhanced g-factor
| Autor: | F. M. Römer, R. Narkowicz, Michael Farle, Jürgen Lindner, Piero Torelli, Ralf Meckenstock, L. Gathmann, M. Möller, H. Zähres, Kai Wagner, B. R. Salles |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
ANISOTROPY
Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Magnetic circular dichroism GAAS Magnetostriction Physik (inkl. Astronomie) FILMS Magnetic susceptibility Ferromagnetic resonance Magnetic field Condensed Matter::Materials Science Magnetic anisotropy X-ray magnetic circular dichroism Remanence |
| Zdroj: | Applied physics letters 100 (2012). doi:10.1063/1.3687726 info:cnr-pdr/source/autori:F. M. Römer, M. Möller, K. Wagner, L. Gathmann, R. Narkowicz, H. Zähres, B. R. Salles, P. Torelli, R. Meckenstock, J. Lindner, and M. Farle/titolo:In situ multifrequency ferromagnetic resonance and x-ray magnetic circular dichroism investigations on Fe%2FGaAs(110): Enhanced g-factor/doi:10.1063%2F1.3687726/rivista:Applied physics letters/anno:2012/pagina_da:/pagina_a:/intervallo_pagine:/volume:100 |
| Popis: | We determined the magnetic anisotropy energy and g-factor of an uncapped 10 nm thick Fe/GaAs(110) film using a setup that allows frequency (1.5-26.5 GHz) as well as angular dependent ferromagnetic resonance measurements under ultrahigh vacuum conditions. The g-factor g=2.61 +/- 0.1 is unusually high at room temperature and can be interpreted as the result of an increased orbital moment due to strain. This interpretation is supported by more surface sensitive x-ray magnetic circular dichroism measurements which yield g=2.21 +/- 0.02 measured at remanence. The difference in g may be the result of magnetic field dependent magnetostriction which influences the orbital moment. |
| Databáze: | OpenAIRE |
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