Laser-induced ultrafast insulator-metal transition in BaBiO_{3}
We investigate ultrafast coherent quantum dynamics of undoped BaBiO_{3} driven by a strong laser pulse. Our calculations demonstrate that in a wide range of radiation frequencies and intensities the system undergoes a transient change from the insulating to the metallic state, where the charge densi...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-11-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043207 |
| _version_ | 1827285940683407360 |
|---|---|
| author | Alexander E. Lukyanov Vyacheslav D. Neverov Yaroslav V. Zhumagulov Alexey P. Menushenkov Andrey V. Krasavin Alexei Vagov |
| author_facet | Alexander E. Lukyanov Vyacheslav D. Neverov Yaroslav V. Zhumagulov Alexey P. Menushenkov Andrey V. Krasavin Alexei Vagov |
| author_sort | Alexander E. Lukyanov |
| collection | DOAJ |
| description | We investigate ultrafast coherent quantum dynamics of undoped BaBiO_{3} driven by a strong laser pulse. Our calculations demonstrate that in a wide range of radiation frequencies and intensities the system undergoes a transient change from the insulating to the metallic state, where the charge density wave and the corresponding energy spectrum gap vanish. The transition takes place on the ultrafast timescale of tens femtoseconds, comparable to the period of the corresponding lattice vibrations. The dynamics are determined by a complex interplay of the particle-hole excitation over the gap and of the tunneling through it, giving rise to the highly nontrivial time evolution which comprises high harmonics and reveals periodic reappearance of the gap. The time evolution is obtained by solving the dynamical mean-field theory equations with the realistic parameters for the system and radiation. Results are summarized in the phase diagram, helpful for a possible experimental setup to achieve a dynamical control over the conduction state of this and other materials with the similarly strong electron-phonon interaction. |
| first_indexed | 2024-04-24T10:23:08Z |
| format | Article |
| id | doaj.art-b79d4e217b6442aeb8109f45e6eb6ac9 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:23:08Z |
| publishDate | 2020-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-b79d4e217b6442aeb8109f45e6eb6ac92024-04-12T17:03:37ZengAmerican Physical SocietyPhysical Review Research2643-15642020-11-012404320710.1103/PhysRevResearch.2.043207Laser-induced ultrafast insulator-metal transition in BaBiO_{3}Alexander E. LukyanovVyacheslav D. NeverovYaroslav V. ZhumagulovAlexey P. MenushenkovAndrey V. KrasavinAlexei VagovWe investigate ultrafast coherent quantum dynamics of undoped BaBiO_{3} driven by a strong laser pulse. Our calculations demonstrate that in a wide range of radiation frequencies and intensities the system undergoes a transient change from the insulating to the metallic state, where the charge density wave and the corresponding energy spectrum gap vanish. The transition takes place on the ultrafast timescale of tens femtoseconds, comparable to the period of the corresponding lattice vibrations. The dynamics are determined by a complex interplay of the particle-hole excitation over the gap and of the tunneling through it, giving rise to the highly nontrivial time evolution which comprises high harmonics and reveals periodic reappearance of the gap. The time evolution is obtained by solving the dynamical mean-field theory equations with the realistic parameters for the system and radiation. Results are summarized in the phase diagram, helpful for a possible experimental setup to achieve a dynamical control over the conduction state of this and other materials with the similarly strong electron-phonon interaction.http://doi.org/10.1103/PhysRevResearch.2.043207 |
| spellingShingle | Alexander E. Lukyanov Vyacheslav D. Neverov Yaroslav V. Zhumagulov Alexey P. Menushenkov Andrey V. Krasavin Alexei Vagov Laser-induced ultrafast insulator-metal transition in BaBiO_{3} Physical Review Research |
| title | Laser-induced ultrafast insulator-metal transition in BaBiO_{3} |
| title_full | Laser-induced ultrafast insulator-metal transition in BaBiO_{3} |
| title_fullStr | Laser-induced ultrafast insulator-metal transition in BaBiO_{3} |
| title_full_unstemmed | Laser-induced ultrafast insulator-metal transition in BaBiO_{3} |
| title_short | Laser-induced ultrafast insulator-metal transition in BaBiO_{3} |
| title_sort | laser induced ultrafast insulator metal transition in babio 3 |
| url | http://doi.org/10.1103/PhysRevResearch.2.043207 |
| work_keys_str_mv | AT alexanderelukyanov laserinducedultrafastinsulatormetaltransitioninbabio3 AT vyacheslavdneverov laserinducedultrafastinsulatormetaltransitioninbabio3 AT yaroslavvzhumagulov laserinducedultrafastinsulatormetaltransitioninbabio3 AT alexeypmenushenkov laserinducedultrafastinsulatormetaltransitioninbabio3 AT andreyvkrasavin laserinducedultrafastinsulatormetaltransitioninbabio3 AT alexeivagov laserinducedultrafastinsulatormetaltransitioninbabio3 |