Suppression of superfluidity by dissipation: An application to failed superconductors
Suppression of superfluidity by dissipation: An application to failed superconductors
复制标题
通过耗散抑制超流性:在失效超导体中的应用
DOI:
10.1103/physrevb.102.104515
复制
发表时间:
2020
影响因子:
3.7
通讯作者:
Nagaosa Naoto
中科院分区:
文献类型:
--
作者:
Misaki Kou;Nagaosa Naoto
The ground states of bosons have been classified into superfluids, bosonic quantum Hall states, Mott insulators, and Bose glass. Recent experiments in two-dimensional clean superconductors under an external magnetic fieldstrongly suggest the existence of the fourth quantum state of Cooper pairs, i.e., Bose metal or quantum metal, where the resistivity remains constant at lowest temperature. However, its theoretical understanding remains unsettled. In this paper, we propose a model where the vortices behave as quantum bosons subject to dissipation at the normal core. We discuss that those bosons remain metallic even at zero temperature by generalizing the Feynman picture of superfluidity in the first quantization formulation and also by a perturbative calculation for a field theoretical model in the second quantization formalism. This result indicates that the resistivityof Bose metal at zero temperature behaves aswithbeing the residual resistivity in the normal state andthe second upper critical field. It also predicts that the Bose metal is missing in superclean superconductors and at the dirty limit or in granular superconductors.
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影响因子:
--
作者:
L. Foldy
通讯作者:
L. Foldy
DOI:
--
发表时间:
1993
期刊:
Physical Review B (Condensed Matter)
影响因子:
--
作者:
Feigelman;Geshkenbein;Ioffe;Larkin
通讯作者:
Larkin
影响因子:
8.6
作者:
M. Stone;P. Thomas
通讯作者:
P. Thomas
影响因子:
8.6
作者:
D. Dalidovich;P. Phillips
通讯作者:
P. Phillips
影响因子:
2.9
作者:
C. Müller
通讯作者:
C. Müller