Interlayer pairings in the Josephson-coupled layered superconductors

E. P. Nakhmedov*, M. Hüner

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

1 Atıf (Scopus)

Özet

The general expression of the effective pairing Hamiltonian is proposed to obtain the multicomponent Ginzburg-Landau free energy functional for strongly anisotropic layered superconductors. The effective Hamiltonian contains an intralayer pairing interaction as well as all possible interlayer pairing potentials. It is shown that the problem with many order parameters can be reduced to the problem with two order parameters which characterize the effective intralayer and effective interlayer pairings. The interlayer interaction Ṽ0, which corresponds to the coherently hopping of pairs from one layer to the nearest neighboring layers, renormalizes the Josephson tunneling strength for an intralayer effective order parameter. Mixing of two order parameters is characterized by the Lifschitz invariant in the free energy functional. The Lifschitz invariant is enhanced due to the interlayer pairing potential V01 which represents an interaction of two particles on the layer with scattering one of them into the nearest neighboring layers. The interlayer interaction V01 also stabilizes the mixing of two-order parameters. Since in the absence of V01 the Lifschitz invariant vanishes for a half-filled band of two-dimensional electrons in a layer. The transition temperature Tc to the superconducting state and upper critical magnetic field Hc2 are calculated. Effects of all possible interlayer pairing interactions on Tc and Hc2 are studied.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)301-314
Sayfa sayısı14
DergiPhysica C: Superconductivity and its Applications
Hacim299
Basın numarası3-4
DOI'lar
Yayın durumuYayınlandı - 20 Nis 1998

Parmak izi

Interlayer pairings in the Josephson-coupled layered superconductors' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

Alıntı Yap