Abstract
We have performed temperature-dependent x-ray magnetic circular dichroism on ferromagnetic at the edges to analyze the correlation of the spin and orbital angular components of the magnetization with the singular magnetostructural anomalies at ∼120 K. We found a sizable orbital angular momentum in Co atoms that follows a temperature dependence very similar to that of the spin momentum. Their sum agrees with the bulk magnetization. Taken together with recent x-ray absorption spectra showing the absence of changes in the electronic filling of Co states across the magnetostructural transition, our results demonstrate the relevance of the spin-orbit coupling for the stabilization of two distinct ferromagnetic phases in this metallic perovskite. The Co spin-state model is discussed on the basis of charge-transfer multiplet calculations of the dichroic spectral shape.
- Received 30 June 2015
- Revised 30 October 2015
- Corrected 29 December 2015
DOI:https://doi.org/10.1103/PhysRevB.92.245136
©2015 American Physical Society
Corrections
29 December 2015