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Article Dans Une Revue Journal of Physics: Condensed Matter Année : 2023

Strain-mediated ion-ion interaction in rare-earth-doped solids

Résumé

It was recently shown that the optical excitation of rare-earth ions produces a local change of the host matrix shape, attributed to a change of the rare-earth ion's electronic orbital geometry. In this work we investigate the consequences of this piezo-orbital backaction and show from a macroscopic model how it yields a disregarded ion-ion interaction mediated by mechanical strain. This interaction scales as $1/r^3$, similarly to the other archetypal ion-ion interactions, namely electric and magnetic dipole-dipole interactions. We quantitatively assess and compare the magnitude of these three interactions from the angle of the instantaneous spectral diffusion mechanism, and reexamine the scientific literature in a range of rare-earth doped systems in the light of this generally underestimated contribution.
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Dates et versions

hal-03956090 , version 1 (12-07-2024)

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Anne Louchet-Chauvet, Thierry Chanelière. Strain-mediated ion-ion interaction in rare-earth-doped solids. Journal of Physics: Condensed Matter, 2023, 35 (30), pp.305501. ⟨10.1088/1361-648X/acce17⟩. ⟨hal-03956090⟩
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