Destabilizing excitonic insulator phase by pressure tuning of exciton-phonon coupling

Ta_{2}NiSe_{5} is an excitonic insulator (EI) exhibiting bound electron-hole pairs condensed at room temperature, which transforms to a small-gap semiconducting state above T=325 K simultaneously undergoing a phonon-related structural transition. Despite the clear experimental evidence for strong ex...

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Bibliographic Details
Main Authors: Sukanya Pal, Shivani Grover, Luminita Harnagea, Prachi Telang, Anupam Singh, D. V. S. Muthu, U. V. Waghmare, A. K. Sood
Format: Article
Language:English
Published: American Physical Society 2020-11-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.043182