Free at last: Bose metal uncaged
Free at last: Bose metal uncaged
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终于自由:Bose Metal 脱困
DOI:
10.1126/science.aaz9902
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发表时间:
2019
期刊:
影响因子:
56.9
通讯作者:
Phillips, Philip W.
中科院分区:
文献类型:
--
作者:
Phillips, Philip W.
Even the particle world is not immune to identity politics. Bosons have been in a bit of an identity crisis, or so it has seemed since 1989 (1). Quantum mechanics requires bosons made of two paired electrons to either condense into a superfluid with a well-defined phase with zero electrical resistance or localize in an insulating state with infinite resistance. The direct transition from superconducting to insulating states was widely observed in a range of thin films (2–4). The most popular model for explaining these observations (5) claims that the destruction of superconductivity occurs when the resistance of the thin film exceeds a critical value. For bosons on the brink of localization, electrically insulating behavior is observed if the resistance is greater than the quantum of resistance,Rq=h/4e2, otherwise superconductivity persists, wherehis Planck's constant andeis the electric charge. On page 1505 of this issue, Yanget al.(6) offer a counterexample by establishing that a bosonic metallic phase disrupts the superconductor-insulator transition (SIT) in the high-temperature superconductor YBa2Cu3O7–x(YBCO).
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
H. Katzgraber;A. Young
通讯作者:
A. Young
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Y. Iwasa;Y. Saito;Y. Kasahara;J.T. Ye and T. Nojima
通讯作者:
J.T. Ye and T. Nojima
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Julian May;P. Phillips
通讯作者:
P. Phillips