Evidence of modified ferromagnetism at a buried Permalloy/CoO interface at room temperature

Evidence of modified ferromagnetism at a buried Permalloy/CoO interface at room temperature

We have used magnetometry and resonant soft x-ray magnetic reflectometry to determine the depth-dependent charge and magnetization density on an absolute scale across a Permalloy/CoO interface above the N{acute e}el temperature of CoO. A thin magnetic layer of 1.0 nm forms at the interface. This lay...

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Veröffentlicht in:Physical review. B, Condensed matter Condensed matter, 2007-01, Vol.75 (1), Article 014442
Hauptverfasser: Roy, S., Sanchez-Hanke, C., Park, S., Fitzsimmons, M. R., Tang, Y. J., Hong, J. I., Smith, David J., Taylor, B. J., Liu, X., Maple, M. B., Berkowitz, A. E., Kao, C.-C., Sinha, S. K.
Format: Artikel
Sprache:eng
Schlagworte:
FERROMAGNETISM
INTERFACES
MAGNETIZATION
MATERIALS SCIENCE
national synchrotron light source
PERMALLOY
TEMPERATURE DEPENDENCE
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Zusammenfassung:We have used magnetometry and resonant soft x-ray magnetic reflectometry to determine the depth-dependent charge and magnetization density on an absolute scale across a Permalloy/CoO interface above the N{acute e}el temperature of CoO. A thin magnetic layer of 1.0 nm forms at the interface. This layer has larger magnetization density and different temperature dependence of magnetization than Permalloy.
ISSN:1098-0121
0163-1829
1550-235X
1095-3795
DOI:10.1103/PhysRevB.75.014442