X-ray Dichroism in Noncetrosymmetric crystals

Abstract

In this paper the authors analyse near-edge absorption of x rays in noncentrosymmetric crystals. The work is motivated by recent observations of x-ray dichroic effects which stems from parity-nonconserving electron interactions. We provide a theoretical description of these experiments and show that they are sensitive to microscopic {\it polar} and {\it magnetoelectric} properties of the sample. Our derivation extends previous theoretical work on centrosymmetric systems and identifies new directions in the microscopic analysis of crystalline materials using x-ray absorption spectroscopy.

References in corpus (1)

• Spin-1 effective Hamiltonian with three degenerate orbitals: An application to the case of V${}_2$O${}_3$

Cited by in corpus (6)

• X-ray Resonant Scattering Study of the Order Parameters in Multiferroic TbMnO${}_3$
• Experimental evidence of anapolar moments in the antiferromagnetic insulating phase of V2O3 obtained from x-ray resonant Bragg diffraction
• $A$-cation control of magnetoelectric quadrupole order in $A$(TiO)Cu${}_4$(PO${}_4$)${}_4$ ($A$ = Ba, Sr, and Pb)
• Site symmetry and crystal symmetry: a spherical tensor analysis
• Analysis of optical magnetoelectric effect in GaFeO_3
• On the nature of the magnetic ground-state wave function of V${}_2$O${}_3$