Soft x-ray magneto-optic Kerr rotation and element-specific hysteresis measurement
- Center for X-Ray Optics and Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
Soft x-ray magneto-optic Kerr rotation has been measured using a continuously tunable multilayer linear polarizer in the beam reflected from samples in applied magnetic fields. Like magnetic circular dichroism, Kerr rotation in the soft x-ray region can be element specific and much larger than in the visible spectral range when the photon energy is tuned near atomic core resonances. Thus sensitive element-specific hysteresis measurements are possible with this technique. Examples showing large Kerr rotation from an Fe film and element-specific hysteresis loops of the Fe and Cr in an Fe/Cr multilayer demonstrate these new capabilities. Some consequences of the strong anomalous dispersion near the Fe L{sub 2,3} edges to the Kerr rotation measurement are discussed. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 389545
- Report Number(s):
- CONF-9510119-; ISSN 0034-6748; TRN: 96:027946
- Journal Information:
- Review of Scientific Instruments, Vol. 67, Issue 9; Conference: SRI `95: synchrotron radiation instrumentation symposium and the 7. users meeting for the advanced photon source (APS), Argonne, IL (United States), 16-20 Oct 1995; Other Information: PBD: Sep 1996
- Country of Publication:
- United States
- Language:
- English
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