6533b857fe1ef96bd12b4f8e

RESEARCH PRODUCT

θ0 thermal Josephson junction

Mikhail Silaev

subject

SuperconductivityJosephson effectPhysicsHeat currentJosephson junctionsCondensed matter physicsMagnetic structureta114Condensed Matter - Superconductivity02 engineering and technology021001 nanoscience & nanotechnologyCoupling (probability)conductors (matter)01 natural sciencesCooper pairsFerromagnetismCondensed Matter::Superconductivitymagnetism0103 physical sciencesCooper pair010306 general physics0210 nano-technologySpin-½

description

We predict the thermal counterpart of the anomalous Josephson effect in superconductor/ferromagnet/superconductor junctions with non-coplanar magnetic texture. The heat current through the junction is shown to have the phase-sensitive interference component proportional to $\cos(\theta - \theta_0)$, where $\theta$ is the Josephson phase difference and $\theta_0$ is the texture-dependent phase shift. In the generic tri-layer magnetic structure with the spin-filtering tunnel barrier $\theta_0$ is determined by the spin chirality of magnetic configuration and can be considered as the direct manifestation of the energy transport with participation of spin-triplet Cooper pairs. In case of the ideal spin filter the phase shift is shown to be robust against spin relaxation caused by the spin-orbital scattering. Possible applications of the coupling between heat flow and magnetic precession are discussed.

10.1103/physrevb.96.064519https://doi.org/10.1103/PhysRevB.96.064519