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Magnetic x-ray linear dichroism of ultrathin Fe-Ni alloy films

Technical Report ·
DOI:https://doi.org/10.2172/603528· OSTI ID:603528
;  [1];  [2]
  1. Pennsylvania State Univ., University Park, PA (United States)
  2. Lawrence Berkeley National Lab., CA (United States); and others

The authors have studied the magnetic structure of ultrathin Fe-Ni alloy films as a function of Fe concentration by measuring the linear dichroism of the 3p-core levels in angle-resolved photoemission spectroscopy. The alloy films, grown by molecular-beam epitaxy on Cu(001) surfaces, were fcc and approximately four monolayers thick. The intensity of the Fe dichroism varied with Fe concentration, with larger dichroisms at lower Fe concentrations. The implication of these results to an ultrathin film analogue of the bulk Invar effect in Fe-Ni alloys will be discussed. These measurements were performed at the Spectromicroscopy Facility (Beamline 7.0.1) of the Advanced Light Source.

Research Organization:
Lawrence Berkeley Lab., CA (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
603528
Report Number(s):
LBNL--39981; ON: DE97007345
Country of Publication:
United States
Language:
English