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

S. Roy, C. Sanchez-Hanke, S. Park, M. R. Fitzsimmons, Y. J. Tang, J. I. Hong, David Smith, B. J. Taylor, X. Liu, M. B. Maple, A. E. Berkowitz, C. C. Kao, S. K. Sinha

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Abstract

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 Néel 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.

Original languageEnglish (US)
Article number014442
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number1
DOIs
StatePublished - Jan 31 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Roy, S., Sanchez-Hanke, C., Park, S., Fitzsimmons, M. R., Tang, Y. J., Hong, J. I., Smith, D., Taylor, B. J., Liu, X., Maple, M. B., Berkowitz, A. E., Kao, C. C., & Sinha, S. K. (2007). Evidence of modified ferromagnetism at a buried Permalloy/CoO interface at room temperature. Physical Review B - Condensed Matter and Materials Physics, 75(1), [014442]. https://doi.org/10.1103/PhysRevB.75.014442