Novel Route to a Finite Center-of-Mass Momentum Pairing State for Superconductors: A Current-Driven Fulde-Ferrell-Larkin-Ovchinnikov State
Hyeonjin Doh, Matthew Song, Hae-Young Kee
DOI 10.1103/PhysRevLett.97.257001 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The previously studied Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is stabilized by a magnetic field via the Zeeman coupling in spin-singlet superconductors. Here we suggest a novel route to achieve nonzero center-of-mass momentum pairing states in superconductors with Fermi surface nesting. We investigate two-dimensional superconductors under a uniform external current, proportional to a finite pair momentum of qe. We find that an FFLO state with a spontaneous pair momentum of qs is stabilized above a certain critical current that depends on the direction of the external current. A finite qs arises in order to make the total pair-momentum of qt(=qs+qe) perpendicular to the nesting vector, which is independent of spin states of Cooper pairs. We also discuss experimental signatures of the FFLO state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in CeCoIn5
similarity 0.95A. Bianchi et al.
Source status unknown — claims are unverified
Impurity-induced configuration-transition in the Fulde-Ferrell-Larkin-Ovchinnikov state of a d-wave superconductor
similarity 0.95Qian Wang et al.
Source status unknown — claims are unverified
Vortex-lattice structure of Fulde-Ferrell-Larkin-Ovchinnikov superconductors
similarity 0.95Kun Yang & A. H. MacDonald
Source status unknown — claims are unverified
Field-induced transition from chiral spin-triplet to mixed-parity Fulde-Ferrell-Larkin-Ovchinnikov superconductivity
similarity 0.95Alfonso Romano et al.
Source status unknown — claims are unverified
Strong Parity Mixing in the Fulde-Ferrell-Larkin-Ovchinnikov Superconductivity in Systems with Coexisting Spin and Charge Fluctuations
similarity 0.95Hirohito Aizawa et al.
Source status unknown — claims are unverified
Collective modes in Fulde-Ferrell-Larkin-Ovchinnikov superconductors: Role of long-range Coulomb interaction and signatures in density response
similarity 0.95Ryoga Miwa et al.
Source status unknown — claims are unverified