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| Author | Pascucci, F.; Conti, S.; Neilson, D.; Tempère, J.; Perali, A. | ||||
| Title | Josephson effect as a signature of electron-hole superfluidity in bilayers of van der Waals heterostructures | Type | A1 Journal article | ||
| Year | 2022 | Publication | Physical review B | Abbreviated Journal | Phys Rev B |
| Volume | 106 | Issue | 22 | Pages | L220503-6 |
| Keywords | A1 Journal article; Theory of quantum systems and complex systems; Condensed Matter Theory (CMT) | ||||
| Abstract | We investigate a Josephson junction in an electron-hole superfluid in a double-layer transition metal dichalco-genide heterostructure. The observation of a critical tunneling current is a clear signature of superfluidity. In addition, we find the BCS-BEC crossover physics in the narrow barrier region controls the critical current across the entire system. The corresponding critical velocity, which is measurable in this system, has a maximum when the excitations pass from bosonic to fermionic. Remarkably, this occurs for the density at the boundary of the BEC to BCS-BEC crossover regime determined from the condensate fraction. This provides, in a semiconductor system, an experimental way to determine the position of this boundary. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000903924400007 | Publication Date | ||
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| Series Volume | Series Issue | Edition | |||
ISSN  |
2469-9969; 2469-9950 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.7 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 3.7 | |||
| Call Number | UA @ admin @ c:irua:193402 | Serial | 7316 | ||
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