Signatures of Ultrafast Reversal of Excitonic Order in Ta 2 NiSe 5
© 2020 American Physical Society. In the presence of electron-phonon coupling, an excitonic insulator harbors two degenerate ground states described by an Ising-type order parameter. Starting from a microscopic Hamiltonian, we derive the equations of motion for the Ising order parameter in the phono...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS),
2022-03-31T18:39:10Z.
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| Subjects: | |
| Online Access: | Get fulltext |