Abstract
We present linear polarization-dependent soft-x-ray absorption spectroscopy data at the Ce edges of Cd- and Sn-doped . The ground-state wave functions have been determined for their superconducting, antiferromagnetic, and paramagnetic ground states. The absence of changes in the wave functions in suggests that the -conduction-electron () hybridization is not affected by global Cd doping, thus supporting the interpretation of magnetic droplets nucleating long-range magnetic order. This is contrasted by changes in the wave function due to Sn substitution. Increasing Sn in compresses the orbitals into the tetragonal plane of these materials, suggesting enhanced hybridization with the in-plane In(1) atoms and a homogeneous altering of the electronic structure. As these experiments show, the wave functions are a very sensitive probe of small changes in the hybridization of and conduction electrons, even conveying information about direction dependencies.
- Received 20 September 2017
- Revised 4 January 2018
DOI:https://doi.org/10.1103/PhysRevB.97.045134
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