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APS » Journals » Phys. Rev. Lett. » Volume 70 » Issue 5
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Phys. Rev. Lett. 70, 694–697 (1993)

X-ray circular dichroism and local magnetic fields

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Paolo Carra, B. T. Thole, Massimo Altarelli, and Xindong Wang
European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble, CEDEX, France
Department of Chemical Physics, Materials Science Center, University of Groningen, Nijenborgh 16, 9747 AG Groningen, The Netherlands
Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011

Received 13 July 1992; published in the issue dated 1 February 1993

Sum rules are derived for the circular dichroic response of a core line (CMXD). They relate the intensity of the CMXD signal to the ground-state expectation value of the magnetic field operators (orbital, spin, and magnetic dipole) of the valence electrons. The results obtained are discussed and tested for transition metals and rare earths.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.694
DOI:
10.1103/PhysRevLett.70.694
PACS:
78.70.Dm, 78.20.Ls
 
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