Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO
Strong many-body interactions in solids yield a host of fascinating and potentially useful physical properties. Here, from angle-resolved photoemission experiments and ab initio many-body calculations, we demonstrate how a strong coupling of conduction electrons with collective plasmon excitations o...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
Springer Nature
2018
|
| _version_ | 1797072055471964160 |
|---|---|
| author | Riley, JM Caruso, F Verdi, C Duffy, LB Watson, MD Bawden, L Volckaert, K van der Laan, G Hesjedal, T Hoesch, M Giustino, F King, PDC |
| author_facet | Riley, JM Caruso, F Verdi, C Duffy, LB Watson, MD Bawden, L Volckaert, K van der Laan, G Hesjedal, T Hoesch, M Giustino, F King, PDC |
| author_sort | Riley, JM |
| collection | OXFORD |
| description | Strong many-body interactions in solids yield a host of fascinating and potentially useful physical properties. Here, from angle-resolved photoemission experiments and ab initio many-body calculations, we demonstrate how a strong coupling of conduction electrons with collective plasmon excitations of their own Fermi sea leads to the formation of plasmonic polarons in the doped ferromagnetic semiconductor EuO. We observe how these exhibit a significant tunability with charge carrier doping, leading to a polaronic liquid that is qualitatively distinct from its more conventional lattice-dominated analogue. Our study thus suggests powerful opportunities for tailoring quantum many-body interactions in solids via dilute charge carrier doping. |
| first_indexed | 2024-03-06T23:02:04Z |
| format | Journal article |
| id | oxford-uuid:6279309d-a49c-45f2-9733-2ecc3fc65e21 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:02:04Z |
| publishDate | 2018 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:6279309d-a49c-45f2-9733-2ecc3fc65e212022-03-26T18:06:43ZCrossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuOJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6279309d-a49c-45f2-9733-2ecc3fc65e21Symplectic Elements at OxfordSpringer Nature2018Riley, JMCaruso, FVerdi, CDuffy, LBWatson, MDBawden, LVolckaert, Kvan der Laan, GHesjedal, THoesch, MGiustino, FKing, PDCStrong many-body interactions in solids yield a host of fascinating and potentially useful physical properties. Here, from angle-resolved photoemission experiments and ab initio many-body calculations, we demonstrate how a strong coupling of conduction electrons with collective plasmon excitations of their own Fermi sea leads to the formation of plasmonic polarons in the doped ferromagnetic semiconductor EuO. We observe how these exhibit a significant tunability with charge carrier doping, leading to a polaronic liquid that is qualitatively distinct from its more conventional lattice-dominated analogue. Our study thus suggests powerful opportunities for tailoring quantum many-body interactions in solids via dilute charge carrier doping. |
| spellingShingle | Riley, JM Caruso, F Verdi, C Duffy, LB Watson, MD Bawden, L Volckaert, K van der Laan, G Hesjedal, T Hoesch, M Giustino, F King, PDC Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title | Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title_full | Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title_fullStr | Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title_full_unstemmed | Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title_short | Crossover from lattice to plasmonic polarons of a spin-polarised electron gas in ferromagnetic EuO |
| title_sort | crossover from lattice to plasmonic polarons of a spin polarised electron gas in ferromagnetic euo |
| work_keys_str_mv | AT rileyjm crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT carusof crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT verdic crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT duffylb crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT watsonmd crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT bawdenl crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT volckaertk crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT vanderlaang crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT hesjedalt crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT hoeschm crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT giustinof crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo AT kingpdc crossoverfromlatticetoplasmonicpolaronsofaspinpolarisedelectrongasinferromagneticeuo |