Faraday rotation spectra at shallow core levels: 3p edges of Fe, Co, and Ni

Details Faraday rotation spectra at shallow core levels: 3p edges of Fe, Co, and Ni Faraday rotation spectra at shallow core levels: 3p edges of Fe, Co, and Ni

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006njph....8..254v&link_type=abstract

New Journal of Physics, Volume 8, Issue 10, pp. 254 (2006).

Physics

7

Scientific paper

We present magneto-optical (MO) Faraday spectra measured at the 3p edges of Fe, Co, and Ni. A polarization analysis of the final state of the transmitted radiation is employed to determine the Faraday rotation at these edges. The MO effect becomes resonantly enhanced at the 3p edges and accordingly large values for the intrinsic rotation constant k of 2.2 × 105, 1.5 × 105 and 0.8 × 105 deg/mm for the three ferromagnetic elements Fe, Co, and Ni, respectively, have been measured. These values are large and comparable to those observed at the 2p edges. This remarkable feature emphasizes the importance of the exchange (EX) splitting over the spin orbit (SO) interaction of the core levels in determining MO effects in the extreme ultra-violet (EUV) region. From these measurements the complete set of MO constants at the 3p edges has been derived.

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