Interlayer excitons with tunable dispersion relation
Name
PhysRevB.93.235110.pdf
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482.22 KB
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Adobe PDF
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19d319354751458f78f93455f5cf0757
Author(s)
Skinner, Brian J
Date Issued
June 2016
Journal
Physical Review B
Publisher
American Physical Society
Citation
Skinner, Brian. "Interlayer excitons with tunable dispersion relation." Physical Review B 93, 235110 (June 2016): 1-7 © 2016 American Physical Society
Version
Final published version
Abstract
Interlayer excitons, comprising an electron in one material bound by Coulomb attraction to a hole in an adjacent material, are composite bosons that can assume a variety of many-body phases. The phase diagram of the bosonic system is largely determined by the dispersion relation of the bosons, which itself arises as a combination of the dispersion relations of the electron and hole separately. Here I show that in situations where either the electron or the hole has a nonmonotonic, “Mexican hat-shaped” dispersion relation, the exciton dispersion relation can have a range of qualitatively different forms, each corresponding to a different many-body phase at low temperature. This diversity suggests a platform for continuously tuning between different quantum phases using an external field.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.93.235110
