期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 20, 期 44, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/20/44/445208
关键词
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资金
- US Department of Energy, Basic Energy Sciences, Office of Science, Division of Materials Sciences [W-31-109-Eng-38, W-7405-Eng-82]
- State of Illinois
- BMBF [05 NA8CJA 8]
Resonant magnetic x-ray scattering from Tb in the spiral phase is studied in great detail. Polarization analysis in the sigma-sigma' and sigma-pi' channels has been performed for magnetic (0, 0, l +/- tau) satellite reflections over the accessible wavevector range Q = 1.9-6.5 angstrom(-1). A characteristic splitting of the resonance signal as a function of energy has been observed at the L(II) as well as at the L(III) absorption edge. The shape of the resonance depends on Q and is different for the two edges. Up to three components were observed with a separation in energy between 3.3 and 4.9 eV, compared to a core hole lifetime broadening of 2.5 eV, which is in agreement with the density of states in Tb metal.
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