Spinon-orbiton repulsion and attraction mediated by Hund's rule
| Autor: | Maria Daghofer, J. Heverhagen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Orbiton Condensed matter physics Spectral weight Strongly Correlated Electrons (cond-mat.str-el) Scattering FOS: Physical sciences 01 natural sciences Attraction Spinon 010305 fluids & plasmas Coupling (physics) Condensed Matter - Strongly Correlated Electrons 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 010306 general physics Spin excitation Excitation |
| DOI: | 10.48550/arxiv.1804.04462 |
| Popis: | We study the impact of Hund's-rule coupling on orbital excitations, as e.g. measured in inelastic resonant x-ray scattering. We find that the interpretation in terms of spin-orbit separation, which has been derived for one-dimensional systems without Hund's rule, remains robust in its presence. Depending on whether or not the orbital excitation includes a spin excitation, Hund's rule leads to an attractive or repulsive interaction between spinon and orbiton. Attraction and repulsion leave clear signatures through a transfer of spectral weight to the lower resp. upper edge of the spectrum. |
| Databáze: | OpenAIRE |
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