Open Access
Gate-controlled BCS-BEC crossover in a two-dimensional superconductor
Yuji Nakagawa
1, 2
,
Yuichi Kasahara
3
,
Takuya Nomoto
1
,
Ryotaro Arita
1, 4
,
Tsutomu Nojima
5
,
Yoshihiro Iwasa
1, 2, 4
1
3
Publication type: Journal Article
Publication date: 2021-04-09
scimago Q1
wos Q1
SJR: 10.416
CiteScore: 48.4
Impact factor: 45.8
ISSN: 00368075, 10959203
PubMed ID:
33737401
Multidisciplinary
Abstract
Inducing a crossover
In conventional superconductors, the electron pairs responsible for superconductivity are large and overlapping. Starting from this so-called Bardeen-Cooper-Schrieffer (BCS) limit, increasing interactions can set the system on a path of crossover to the opposite limit of small, tightly bound electron pairs that undergo Bose-Einstein condensation (BEC). Nakagawa et al. intercalated lithium ions into the insulating material zirconium nitride chloride, varying the carrier density across a large range (see the Perspective by Randeria). This induced superconductivity and enabled the system to enter the crossover regime between the BCS and BEC limits.
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113
Total citations:
113
Citations from 2024:
53
(46.9%)
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GOST
Copy
Nakagawa Y. et al. Gate-controlled BCS-BEC crossover in a two-dimensional superconductor // Science. 2021. Vol. 372. No. 6538. pp. 190-195.
GOST all authors (up to 50)
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Nakagawa Y., Kasahara Y., Nomoto T., Arita R., Nojima T., Iwasa Y. Gate-controlled BCS-BEC crossover in a two-dimensional superconductor // Science. 2021. Vol. 372. No. 6538. pp. 190-195.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1126/science.abb9860
UR - https://doi.org/10.1126/science.abb9860
TI - Gate-controlled BCS-BEC crossover in a two-dimensional superconductor
T2 - Science
AU - Nakagawa, Yuji
AU - Kasahara, Yuichi
AU - Nomoto, Takuya
AU - Arita, Ryotaro
AU - Nojima, Tsutomu
AU - Iwasa, Yoshihiro
PY - 2021
DA - 2021/04/09
PB - American Association for the Advancement of Science (AAAS)
SP - 190-195
IS - 6538
VL - 372
PMID - 33737401
SN - 0036-8075
SN - 1095-9203
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2021_Nakagawa,
author = {Yuji Nakagawa and Yuichi Kasahara and Takuya Nomoto and Ryotaro Arita and Tsutomu Nojima and Yoshihiro Iwasa},
title = {Gate-controlled BCS-BEC crossover in a two-dimensional superconductor},
journal = {Science},
year = {2021},
volume = {372},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {apr},
url = {https://doi.org/10.1126/science.abb9860},
number = {6538},
pages = {190--195},
doi = {10.1126/science.abb9860}
}
Cite this
MLA
Copy
Nakagawa, Yuji, et al. “Gate-controlled BCS-BEC crossover in a two-dimensional superconductor.” Science, vol. 372, no. 6538, Apr. 2021, pp. 190-195. https://doi.org/10.1126/science.abb9860.