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Magnetic tunnel junctions (MTJs) have attracted strong research interest within the last decades due to their potential use as nonvolatile memory such as MRAM as well as for magnetic logic applications. Half-metallic magnets (HMMs) have…

Materials Science · Physics 2022-09-05 T. Aull , E. Şaşıoğlu , N. F. Hinsche , I. Mertig

We study heat rectification through quantum dots in the Coulomb blockade regime using a master equation approach. We consider both cases of two-terminal and four-terminal devices. In the two-terminal configuration, we analyze the case of a…

Mesoscale and Nanoscale Physics · Physics 2022-03-11 Ludovico Tesser , Bibek Bhandari , Paolo Andrea Erdman , Elisabetta Paladino , Rosario Fazio , Fabio Taddei

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…

Superconductivity · Physics 2022-07-20 Claudio Guarcello , Roberta Citro , Francesco Giazotto , Alessandro Braggio

In the linear regime, thermo-electric effects between two conductors are possible only in the presence of an explicit breaking of the electron-hole symmetry. We consider a tunnel junction between two electrodes and show that this condition…

Mesoscale and Nanoscale Physics · Physics 2020-03-17 G. Marchegiani , A. Braggio , F. Giazotto

The ability to control heat transport with electrical signals has been an outstanding challenge due to the lack of efficient electrothermal materials. Previous attempts have mainly concentrated on phase-change and layered materials and…

HfO2-based ferroelectric tunnel junctions (FTJs) exhibit attractive properties for adoption in neuromorphic applications. The combination of ultra-low-power multi-level switching capability together with the low on-current density suggests…

Applied Physics · Physics 2022-11-02 Suzanne Lancaster , Quang T. Duong , Erika Covi , Thomas Mikolajick , Stefan Slesazeck

Harmonic oscillator chains connecting two harmonic reservoirs at different constant temperatures cannot act as thermal diodes, irrespective of structural asymmetry. However, here we prove that perfectly harmonic junctions can rectify heat…

Quantum Physics · Physics 2021-06-02 Na'im Kalantar , Bijay Kumar Agarwalla , Dvira Segal

Superconducting interfaces have recently been demonstrated to contain a rich variety of effects that give rise to sizable thermoelectric responses and unexpected thermal properties, despite traditionally being considered poor…

Mesoscale and Nanoscale Physics · Physics 2025-11-12 L. Arrachea , A. Braggio , P. Burset , E. J. H. Lee , A. Levy Yeyati , R. Sánchez

We investigate heat and charge transport in NN'IS tunnel junctions in the diffusive limit. Here N and S are massive normal and superconducting electrodes (reservoirs), N' is a normal metal strip, and I is an insulator. The flow of electric…

Superconductivity · Physics 2015-05-14 A. S. Vasenko , E. V. Bezuglyi , H. Courtois , F. W. J. Hekking

Superconducting quantum circuits are potential candidates to realize a large-scale quantum computer. The envisioned large density of integrated components, however, requires a proper thermal management and control of dissipation. To this…

Several models of thermionic energy nanoconverters have been proposed to study the transport phenomena that take place in electronic devices. For example, in resonant tunneling junctions those phenomena are manifested through the…

Mesoscale and Nanoscale Physics · Physics 2020-06-02 G. Valencia-Ortega , L. A. Arias-Hernandez

Understanding heating and cooling mechanisms in mesoscopic superconductor-semiconductor hybrid devices is crucial for their application in quantum technologies. Owing to the poor thermal conductivity of typical devices, heating effects can…

Mesoscale and Nanoscale Physics · Physics 2024-06-12 Angel Ibabe , Gorm O. Steffensen , Ignacio Casal , Mario Gomez , Thomas Kanne , Jesper Nygard , Alfredo Levy Yeyati , Eduardo J. H. Lee

Hybrid Superconductor/Ferromagnet structures have been investigated recently to address the interplay between ferromagnetism and superconductivity. They also open up new routes for the investigation of out of equilibrium superconductivity.…

Superconductivity · Physics 2015-05-13 R. Latempa , M. Aprili , I. Petkovic

This article reviews recent advances in low-temperature electronic thermal transport properties of thermally biased superconductor heterostructures focusing on the two-terminal transport. Since the last decade, ferromagnetism has been…

Superconductivity · Physics 2025-04-01 Paramita Dutta

We study heat conduction in (n, 0)/(2n, 0) intramolecular junctions by using molecular dynamics method. It is found that the heat conduction is asymmetric, namely, heat transports preferably in one direction. This phenomenon is also called…

Mesoscale and Nanoscale Physics · Physics 2007-08-18 Gang Wu , Baowen Li

We analyze the noise properties of both electric charge and heat currents as well as their correlations in a quantum-dot based thermoelectric engine. The engine is a three-terminal conductor with crossed heat and charge flows where heat…

Mesoscale and Nanoscale Physics · Physics 2013-12-10 Rafael Sánchez , Björn Sothmann , Andrew N. Jordan , Markus Büttiker

A Josephson tunnel junction transistor based on quasiparticle injection is proposed. Its operation relies on the manipulation of the electron distribution in one of the junction electrodes. This is accomplished by injecting quasiparticle…

Superconductivity · Physics 2008-07-12 F. Giazotto , J. P. Pekola

We address the heat flow study starting from microscopic models of matter: we develop an approach and investigate some anharmonic graded mass crystals, with weak interparticle interactions. We calculate the thermal conductivity, and show…

Materials Science · Physics 2015-05-27 Emmanuel Pereira

A thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. This behavior is generally due to the non-linear dependence of certain physical properties with respect to the temperature. Here we…

Optics · Physics 2015-06-16 Philippe Ben-Abdallah , Svend-Age Biehs

Thermal rectification and heat amplification are investigated in a nonequilibrium V-type three-level system with quantum interference. By applying the Redfield master equation combined with full counting statistics, we analyze the steady…

Quantum Physics · Physics 2019-04-10 Chen Wang , Dazhi Xu , Huan Liu , Xianlong Gao