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Macroscopic quantum phase coherence has one of its pivotal expressions in the Josephson effect [1], which manifests itself both in charge [2] and energy transport [3-5]. The ability to master the amount of heat transferred through two…

介观与纳米尺度物理 · 物理学 2016-03-10 Antonio Fornieri , Christophe Blanc , Riccardo Bosisio , Sophie D'Ambrosio , Francesco Giazotto

The concept of thermophase refers to the appearance of a phase gradient inside a superconductor originating from the presence of an applied temperature bias across it. The resulting supercurrent flow may, in suitable conditions, fully…

介观与纳米尺度物理 · 物理学 2015-02-11 F. Giazotto , T. T. Heikkilä , F. S. Bergeret

Josephson tunnel junctions are proposed as efficient phase-tunable thermal rectifiers. The latter exploit the strong temperature dependence of the superconducting density of states and phase-dependence of heat currents flowing through…

介观与纳米尺度物理 · 物理学 2013-05-20 M. J. Martinez-Perez , F. Giazotto

We theoretically put forward the concept of a phase-controlled superconducting heat-flux quantum modulator. Its operation relies on phase-dependent heat current predicted to occur in temperature-biased Josephson tunnel junctions. The device…

介观与纳米尺度物理 · 物理学 2012-10-02 F. Giazotto , M. J. Martinez-Perez

We present an exhaustive study of the coherent heat transport through superconductor-ferromagnet(S-F) Josephson junctions including a spin-filter (I$_{sf}$) tunneling barrier. By using the quasiclassical Keldysh Green's function technique…

超导电性 · 物理学 2013-07-23 F. S. Bergeret , F. Giazotto

We theoretically propose a phase-coherent thermal circulator based on ballistic multiterminal Josephson junctions. The breaking of time-reversal symmetry by either a magnetic flux or a superconducting phase bias allows heat to flow…

介观与纳米尺度物理 · 物理学 2018-10-30 Sun-Yong Hwang , Francesco Giazotto , Björn Sothmann

We propose theoretically a thermal switch operating by the magnetic-flux controlled diffraction of phase-coherent heat currents in a thermally biased Josephson junction based on a two-dimensional topological insulator. For short junctions,…

介观与纳米尺度物理 · 物理学 2017-03-02 Björn Sothmann , Francesco Giazotto , Ewelina M. Hankiewicz

We theoretically investigate heat transport in temperature-biased Josephson tunnel junctions in the presence of an in-plane magnetic field. In full analogy with the Josephson critical current, the phase-dependent component of the heat flux…

介观与纳米尺度物理 · 物理学 2013-09-12 F. Giazotto , M. J. Martinez-Perez , P. Solinas

We theoretically investigate the phase-dependent heat transport of a temperature-biased granular Josephson junction in the presence of a perpendicular magnetic field. We illustrate the influence of geometry of the junction on the thermal…

超导电性 · 物理学 2019-06-13 Elaheh Afsaneha , Heshmatolah Yavari

We discuss heat transport through a Josephson tunnel junction under various bias conditions. We first derive the formula for the cooling power of the junction valid for arbitrary time dependence of the Josephson phase. Combining it with the…

介观与纳米尺度物理 · 物理学 2013-04-04 Dmitry Golubev , Timothé Faivre , Jukka P. Pekola

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…

超导电性 · 物理学 2017-08-22 M. A. Silaev

We theoretically study the behavior of the critical current of a thermally-biased tunnel Josephson junction with a particular design, in which the electrodes of the junction are enclosed in two different superconducting loops pierced by…

超导电性 · 物理学 2022-07-20 Claudio Guarcello , Roberta Citro , Francesco Giazotto , Alessandro Braggio

Since the the first studies of thermodynamics, heat transport has been a crucial element for the understanding of any thermal system. Quantum mechanics has introduced new appealing ingredients for the manipulation of heat currents, such as…

In spite of extended efforts, detecting thermoelectric effects in superconductors have proven to be a challenging task, due to the inherent superconducting particle-hole symmetry. Here we present a theoretical study of an experimentally…

介观与纳米尺度物理 · 物理学 2016-11-01 Yaakov Kleeorin , Yigal Meir , Francesco Giazotto , Yonatan Dubi

At zero temperature, a Josephson junction coupled to an ohmic environment displays a quantum phase transition between superconducting and insulating phases, depending whether the resistance of the environment is below or above the…

超导电性 · 物理学 2024-03-21 Tsuyoshi Yamamoto , Leonid I. Glazman , Manuel Houzet

Since its recent foundation, phase-coherent caloritronics has sparkled continuous interest giving rise to numerous concrete applications. This research field deals with the coherent manipulation of heat currents in mesoscopic…

介观与纳米尺度物理 · 物理学 2018-08-20 Claudio Guarcello , Paolo Solinas , Alessandro Braggio , Francesco Giazotto

We study the Josephson effect in junctions composed of two ferromagnetic insulator/diffusive superconductor bilayers separated by an insulating barrier. By computing the free energy of the system, we identify two distinct contributions: (i)…

超导电性 · 物理学 2025-10-08 A. A. Mazanik , C. -H. Huang , Miguel A. Cazalilla , F. S. Bergeret

We discuss how phase coherence manifests in the heat transport through superconducting single and multichannel Josephson junctions in time dependent situations. We consider the heat current driven through the junction by a temperature…

超导电性 · 物理学 2015-03-02 P. Virtanen , F. Giazotto

We investigate phase-coherent thermal transport in Josephson junctions made from unconventional superconductors or superfluids. The thermal conductance is evaluated for one- and two-dimensional junctions within the Bogoliubov-de Gennes…

介观与纳米尺度物理 · 物理学 2019-07-09 Alexander G. Bauer , Björn Sothmann

We study the thermodynamic properties of a superconductor/normal metal/superconductor Josephson junction {in the short limit}. Owing to the proximity effect, such a junction constitutes a thermodynamic system where {phase difference},…

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