Experimentally observable signatures of odd-frequency pairing in multiband superconductors

被引：46

作者：

Komendova, L. ^{[1
]}

Balatsky, A. V. ^{[2
,3
,4
]}

Black-Schaffer, A. M. ^{[1
]}

机构：

[1] Uppsala Univ, Dept Phys & Astron, SE-75121 Uppsala, Sweden

[2] KTH Royal Inst Technol, Ctr Quantum Mat, NORDITA, SE-10691 Stockholm, Sweden

[3] Stockholm Univ, SE-10691 Stockholm, Sweden

[4] Los Alamos Natl Lab, Inst Mat Sci, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2015年 / 92卷 / 09期

基金：

欧洲研究理事会; 瑞典研究理事会;

关键词：

MODEL; ORIGIN; GAPS;

D O I：

10.1103/PhysRevB.92.094517

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate how hybridization (single-quasiparticle scattering) between two superconducting bands induces odd-frequency superconductivity in a multiband superconductor. An explicit derivation of the odd-frequency pairing correlation and its full frequency dependence is given. We also find that the density of states is modified, at higher energies, from the sum of the two BCS spectra to also include additional hybridization gaps with strong coherence peaks when odd-frequency pairing is present. These gaps constitute clear experimentally measurable signatures of odd-frequency pairing in multiband superconductors.

引用

页数：7

共 29 条

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