Modified Magnetism at Buried Co/Pd Interface: Depth-Resolved Magnetic Circular Dichroism Study Using Soft X-ray Standing Waves

  • Kim, Sang-Koog (Materials Sciences Division, Lawrence Berkeley National Laboratory,University of California) ;
  • Kortright, J.B. (Materials Sciences Division, Lawrence Berkeley National Laboratory,University of California) ;
  • Shin, Sung-Chul (Department of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology)
  • Published : 2000.09.01


Soft x-ray standing waves produced by a multilayer interference substrate add depth-sensitivity to magnetic circular dichroism to resolve changes in Co magnetism across a 10${\AA}$ distance from the Co center to the Co-Pd interface of a Pd/Co/Pd trilayer having in-plane magnetization. Large enhancements of in-plane orbital and spin magnetic moments, as well as the number of d holes, are strongly localized in a thin interface layer. These results provide new insight into the phenomenon of magnetic anisotropy at buried interfaces, and suggest a broad applicability of such standing wave measurements to interface magnetism studies.



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