On the possibility of excitonic phases at the semiconductor–semimetal transition |
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| Authors: | Franz X Bronold Holger Fehske |
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| Institution: | aInstitut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, D-17489 Greifswald, Germany |
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| Abstract: | Motivated by recent experimental evidences for pressure-induced exciton condensation in intermediate valent TmSe,Te] compounds, we re-examine, adopting a BEC–BCS crossover scenario, the formation and stability of exciton insulator versus electron–hole liquid phases. |
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| Keywords: | Excitonic insulator Electron– hole liquid BEC– BCS transition |
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