${\theta }_0$ thermal Josephson junction

Abstract

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.

In this version new references added

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Cited by in corpus (1)

• Spontaneous supercurrent and $\varphi$0 phase shift parallel to magnetized topological insulator interfaces