Costantini, R. (2023) Time-resolved core level photoemission reveals transient lattice distortions in 2H-MoTe2 crystals. Il nuovo cimento C, 46 (3). pp. 1-9. ISSN 1826-9885
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Abstract
Time-resolved X-ray photoemission has been used to investigate the photo-induced lattice dynamics in a 2H-MoTe2 crystal. Two different effects are present at long and short timescales: in the microsecond range, core level shifts due to the surface photovoltage fields are detected; in the sub-nanosecond range, a shift in the opposite direction is observed, indicating that its origin may be due to a different physical process. With the support of theoretical calculations, it is shown that the latter energy shift can be ascribed to a transient lattice deformation, with a measured lifetime in the order of ∼600 ps.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 29 Jan 2024 12:16 |
| Last Modified: | 29 Jan 2024 12:16 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/22599 |
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