Optical constants of ferromagnetic iron via 2p resonant magnetic scattering

被引:64
作者
Sacchi, M [1 ]
Hague, CF
Pasquali, L
Mirone, A
Mariot, JM
Isberg, P
Gullikson, EM
Underwood, JH
机构
[1] Ctr Univ Paris Sud, Utilisat Rayonnement Electromagnet Lab, F-91405 Orsay, France
[2] Univ Paris 06, Lab Chim Phys Mat & Rayonnement, UMR 7614, F-75231 Paris 05, France
[3] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy
[4] INFM, Sez Modena, I-41100 Modena, Italy
[5] Inst Opt Theor & Appl, URA 14, F-91439 Orsay, France
[6] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden
[7] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Ctr Xray Opt, Berkeley, CA 94720 USA
关键词
D O I
10.1103/PhysRevLett.81.1521
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have determined the optical constants at the 2p edges of iron by measuring the Bragg scattering from a Fe/V superlattice using elliptically polarized photons whose energies were tuned across the Fe 2p resonances (700-730 eV). The analysis of the Bragg peak displacement as a function of photon energy and sample magnetization, together with standard absorption measurements, allowed to determine the complete dielectric tensor for Fe, including its off-diagonal terms.
引用
收藏
页码:1521 / 1524
页数:4
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