Thumbnail
Access Restriction
Open

Author Harp, G. R. ♦ Farrow, R. F. ♦ Marks, R. F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ MAGNETIC MATERIALS ♦ ENERGY-LOSS SPECTROSCOPY ♦ MAGNETIC CIRCULAR DICHROISM ♦ THIN FILMS ♦ IRON ♦ COBALT ♦ NICKEL ♦ COMPARATIVE EVALUATIONS
Abstract We evaluate the possibility of using dichroic electron energy loss spectroscopy (DEELS) as an alternative to x-ray magnetic circular dichroism (XMCD). It is well known that electron energy loss spectroscopy and x-ray absorption spectroscopy are highly analogous, providing similar information. A simple semiclassical model suggests that DEELS might have a magnetic sensitivity similar to that of XMCD. This sensitivity will be reduced, however, by multiple scattering of the probe electron before and after the energy loss event. Thus it is difficult to predict the magnitude of the DEELS effect. Experiments were performed at the {ital L}-edge of polycrystalline Fe, Co, and Ni thin film samples with uniaxial in-plane magnetic anisotropy, prepared {ital in} {ital situ} with a magnetic bias field. Even in those most favorable cases, the DEELS effect is seen to be at least 10 times smaller than similar effects in XMCD. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-04-01
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 79
Issue Number 8
Technical Publication No. CONF-951101-


Open content in new tab

   Open content in new tab