Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2.
We report a resonant inelastic x-ray scattering study of charge excitations in the quasi-one-dimensional Mott insulator SrCuO2. We observe a continuum of low-energy excitations, the onset of which exhibits a small dispersion of approximately 0.4 eV. Within this continuum, a highly dispersive feature...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1826282036949680128 |
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| author | Kim, Y Hill, J Benthien, H Essler, F Jeckelmann, E Choi, H Noh, T Motoyama, N Kojima, K Uchida, S Casa, D Gog, T |
| author_facet | Kim, Y Hill, J Benthien, H Essler, F Jeckelmann, E Choi, H Noh, T Motoyama, N Kojima, K Uchida, S Casa, D Gog, T |
| author_sort | Kim, Y |
| collection | OXFORD |
| description | We report a resonant inelastic x-ray scattering study of charge excitations in the quasi-one-dimensional Mott insulator SrCuO2. We observe a continuum of low-energy excitations, the onset of which exhibits a small dispersion of approximately 0.4 eV. Within this continuum, a highly dispersive feature with a large sinusoidal dispersion (approximately 1.1 eV) is observed. We have also measured the optical conductivity, and studied the dynamic response of the extended Hubbard model with realistic parameters, using a dynamical density-matrix renormalization group method. In contrast to earlier work, we do not find a long-lived exciton, but rather these results suggest that the excitation spectrum comprises a holon-antiholon continuum together with a broad resonance. |
| first_indexed | 2024-03-07T00:37:49Z |
| format | Journal article |
| id | oxford-uuid:8204a71b-b3f4-44db-87ce-708da7ee32c6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:37:49Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:8204a71b-b3f4-44db-87ce-708da7ee32c62022-03-26T21:34:23ZResonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8204a71b-b3f4-44db-87ce-708da7ee32c6EnglishSymplectic Elements at Oxford2004Kim, YHill, JBenthien, HEssler, FJeckelmann, EChoi, HNoh, TMotoyama, NKojima, KUchida, SCasa, DGog, TWe report a resonant inelastic x-ray scattering study of charge excitations in the quasi-one-dimensional Mott insulator SrCuO2. We observe a continuum of low-energy excitations, the onset of which exhibits a small dispersion of approximately 0.4 eV. Within this continuum, a highly dispersive feature with a large sinusoidal dispersion (approximately 1.1 eV) is observed. We have also measured the optical conductivity, and studied the dynamic response of the extended Hubbard model with realistic parameters, using a dynamical density-matrix renormalization group method. In contrast to earlier work, we do not find a long-lived exciton, but rather these results suggest that the excitation spectrum comprises a holon-antiholon continuum together with a broad resonance. |
| spellingShingle | Kim, Y Hill, J Benthien, H Essler, F Jeckelmann, E Choi, H Noh, T Motoyama, N Kojima, K Uchida, S Casa, D Gog, T Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title | Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title_full | Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title_fullStr | Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title_full_unstemmed | Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title_short | Resonant inelastic X-ray scattering of the holon-antiholon continuum in SrCuO2. |
| title_sort | resonant inelastic x ray scattering of the holon antiholon continuum in srcuo2 |
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