Eur. Phys. J. B 4, 1-11 (1998)
https://doi.org/10.1007/s100510050344

Calculation of X-ray natural circular dichroism

¹ Laboratori Nazionali di Frascati dell'Istituto Nazionale di Fisica Nucleare, PO Box 13, 00044 Frascati, Italy
² Laboratoire de Minéralogie Cristallographie, Universités Paris VI, Paris VII, Case 115, 4 place Jussieu, 75252 Paris Cedex 05, France
³ European Synchrotron Radiation Facility, BP 220, 38043, Grenoble Cedex, France

Corresponding author: ^a brouder@lmcp.jussieu.fr

Received: 20 October 1997
Revised: 18 February 1998
Accepted: 31 March 1998
Published online: 15 July 1998

Abstract

A method is presented to calculate the natural circular dichroism recently discovered in the X-ray range (XNCD). The basic formula represents XNCD as an odd second-rank tensor and leads to a sum rule that relates XNCD to the mixing of odd and even orbitals in the ground state. A multiple-scattering theory of XNCD is presented, and calculated spectra for the L-edges of iodine in LiIO₃ compare favorably with the experiments.