Neuropsychological constraints to human data production on a global scale |
| |
Authors: | C Gros G Kaczor D Marković |
| |
Institution: | 1.Institute for Theoretical Physics,Goethe University Frankfurt,Frankfurt,Germany |
| |
Abstract: | High-magnetic-field X-ray absorption spectra (XAS) and its X-ray magnetic circular
dichroism (XMCD) at the Yb L2, 3 edges of YbInCu4 are calculated
around the field-induced valence transition at about 30 T. The calculations are made by
using a new theoretical framework with an extended single impurity Anderson model (SIAM)
developed recently by the present author. Two parameters in SIAM, the 4f
level and the hybridization strength, are taken as different values in low- and
high-magnetic-field phases of the field-induced valence transition. The calculated results
are compared with recent experimental data measured by Matsuda et al. by utilizing a
miniature pulsed magnet up to 40 T. The field-dependence of the calculated XMCD spectra is
explained in detail on the basis of the field-dependence of the Yb 4f
wavefunctions in the ground state. Some possibilities are discussed on the negative XMCD
signal observed experimentally at the L2 edge. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|