Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Kalenkov, Mikhail S."'
Publikováno v:
Phys. Rev. B 110, 134521 (2024)
We develop a microscopic theory of ac Josephson effect in superconducting junctions described by an arbitrary scattering matrix that may include magnetic effects. In the limit of constant in time bias voltage $V$ applied to the junction we derive a f
Externí odkaz:
http://arxiv.org/abs/2410.07344
Publikováno v:
Jetp Lett. 114, 593 (2021)
We review some recent advances in studies of phase-coherent thermoelectric effects in superconducting hybrid structures such as, e.g., Andreev interferometers. We elucidate a number of mechanisms of electron-hole symmetry breaking in such systems cau
Externí odkaz:
http://arxiv.org/abs/2202.08283
Publikováno v:
Phys. Rev. B 103, 134501 (2021)
We develop a detailed theory describing a non-trivial interplay between non-equilibrium effects and long-range quantum coherence in superconducting hybrid nanostructures exposed to a temperature gradient. We establish a direct relation between thermo
Externí odkaz:
http://arxiv.org/abs/2102.01112
Publikováno v:
Eur. Phys. J. Spec. Top. 230, 813 (2021)
We demonstrate that the supercurrent can be strongly enhanced in cross-like superconducting hybrid nanostructures (X-junctions) exposed to a temperature gradient. At temperatures T exceeding the Thouless energy of our X-junction the Josephson current
Externí odkaz:
http://arxiv.org/abs/2012.07366
Publikováno v:
Phys. Rev. B 101, 180505 (2020)
We demonstrate that thermoelectric signal as well as dc Josephson current may be severely enhanced in multi-terminal superconducting hybrid nanostructures exposed to a temperature gradient. At temperatures $T$ strongly exceeding the Thouless energy o
Externí odkaz:
http://arxiv.org/abs/1912.03834
Publikováno v:
Phys. Rev. B 100, 054511 (2019)
We present a detailed theoretical description of quantum coherent electron transport in voltage-biased cross-like Andreev interferometers. Making use of the charge conjugation symmetry encoded in the quasiclassical formalism, we elucidate a crucial r
Externí odkaz:
http://arxiv.org/abs/1906.07305
Proximity induced quantum coherence of electrons in multi-terminal voltage-driven hybrid normal-superconducting nanostructures may result in a non-trivial interplay between topology-dependent Josephson and Aharonov-Bohm effects. We elucidate a trade-
Externí odkaz:
http://arxiv.org/abs/1807.10339
We theoretically investigate coherent oscillations of the thermopower $\mathcal{S}$ as a function of the magnetic flux $\Phi$ in six-terminal Andreev interferometers. We demonstrate that the thermopower behavior is determined by a number of contribut
Externí odkaz:
http://arxiv.org/abs/1806.06882
Publikováno v:
Phys. Rev. B 97, 054521 (2018)
We predict a novel $(I_0,\phi_0)$-junction state of multi-terminal Andreev interferometers that emerges from an interplay between long-range quantum coherence and non-equilibrium effects. Under non-zero bias $V$ the current-phase relation $I_S(\phi)$
Externí odkaz:
http://arxiv.org/abs/1711.05531
Publikováno v:
Phys. Rev. B 95, 024518 (2017)
Employing quasiclassical theory of superconductivity combined with Keldysh technique we investigate large thermoelectric effect in multiterminal ballistic normal-superconducting (NS) hybrid structures. We argue that this effect is caused by electron-
Externí odkaz:
http://arxiv.org/abs/1611.02032