Spin-Triplet Superconductivity due to Antiferromagnetic Spin-Fluctuation inSr2RuO4
نویسندگان
چکیده
منابع مشابه
Vortex Corrections in Antiferromagnetic Spin Fluctuation Theories.
The issue of the vertex corrections in the spin-fermion model for cuprates has attracted a substantial interest over the last few years. The fully renormalized spin-fermion vertex, g full appears as the overall factor in the effective pairing interaction mediated by spin fluctuations: G(q ,v) 5g full 2 x(q ,v) where x(q ,v) is the dynamical spin susceptibility, and q and v are transferred momen...
متن کاملSpin-Fluctuation Mechanism of Superconductivity in Cuprates
Normal and superconducting state spectral properties of cuprates are theoretically described within the extended t-J model. The method is based on the equations of motion for projected fermionic operators and the mode-coupling approximation for the self-energy matrix. The dynamical spin susceptibility at various doping is considered as an input, extracted from experiments. The analysis shows th...
متن کاملSpin - fluctuation superconductivity in the Hubbard model
The theory of the superconductivity mediated by kinematic and exchange interactions in t?J and two-band Hubbard models in a paramagnetic state is formulated. The Dyson equations for the matrix Green functions in terms of the Hubbard operators are obtained in the non-crossing approximation. To calculate superconducting T c a numerical solution of self-consistent Eliashberg equations is proposed.
متن کاملObservation of spin-triplet superconductivity in Co-based Josephson junctions.
We have measured a long-range supercurrent in Josephson junctions containing Co (a strong ferromagnetic material) when we insert thin layers of either PdNi or CuNi weakly ferromagnetic alloys between the Co and the two superconducting Nb electrodes. The critical current in such junctions hardly decays for Co thicknesses in the range of 12-28 nm, whereas it decays very steeply in similar junctio...
متن کاملTriplet pairing due to spin-orbit-assisted electron-phonon coupling
We propose a microscopic mechanism for spin-dependent attraction in a metal leading to triplet pairing, which is caused by spin-orbit-assisted coupling between electrons and optical phonons in crystals with complex unit cells. Using two examples of crystals with either a cubic or a layered square lattice, we show that spin-orbit-assisted electron-phonon coupling generates triplet pairing with u...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2000
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.85.4586