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Hyperbolic metamaterials (HMMs) support propagating waves with arbitrarily large wavevectors over broad spectral ranges, and are uniquely valuable for engineering radiative thermal transport in the near field. Here, by employing a rational…

Optics · Physics 2022-02-04 Qizhang Li , Haiyu He , Qun Chen , Bai Song

It is illustrated that semiconductor quantum dots (QDs) embedded into an insulating matrix connected with metallic electrodes and some vacuum space can lead to significant thermal rectification effect. A multilevel Anderson model is used to…

Mesoscale and Nanoscale Physics · Physics 2010-01-11 David M. -T. Kuo , Yia-chung Chang

A novel photonic thermal diode concept operating in the near field and capitalizing on the temperature-dependence of coupled surface polariton modes in nanostructures is proposed. The diode concept utilizes terminals made of the same…

Optics · Physics 2017-10-24 Lei Tang , Mathieu Francoeur

Diodes are key elements for electronics, optics, and detection. The search for a material combination providing the best performances for the required application is continuously ongoing. Here, we present a superconducting spintronic tunnel…

With increased power consumption of modern computer components, heat-based circuitry has become ever more relevant due to a lower power expense to process logic bits of information. In heat-based circuits, computations are performed by…

Quantum Physics · Physics 2024-05-29 Kasper Poulsen , Nikolaj T. Zinner

The presence of interfaces in semiconductor devices substantially hinders thermal transport, contributing disproportionately to the overall thermal resistance. However, approaches to enhance interfacial thermal transport remain scarce…

Mesoscale and Nanoscale Physics · Physics 2025-11-18 Yizhe Liu , Bo Sun

We analyze the heat current traversing a quantum dot sandwiched between a ferromagnetic and a superconducting electrode. The heat flow generated in response to a voltage bias presents rectification as a function of the gate potential…

Mesoscale and Nanoscale Physics · Physics 2018-04-24 Sun-Yong Hwang , David Sanchez

In a hybrid Superconductor - Insulator - Normal metal tunnel junction biased just below the gap, the extraction of hot electrons out of the normal metal results in electronic cooling effect. The quasiparticles injected in the superconductor…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Bernard Pannetier , Herve' Courtois , Sukumar Rajauria

We present a thermal rectification device concept based on far-field radiative exchange between two selective emitters. Rectification is achieved due to the fact that one of the selective emitters radiative properties are independent on…

Mesoscale and Nanoscale Physics · Physics 2014-07-14 Elyes Nefzaoui , Jérémie Drevillon , Younès Ezzahri , Karl Joulain

In miniaturising electrical devices down to nanoscales, heat transfer has turned into a serious obstacle but also potential resource for future developments, both for conventional and quantum computing architectures. Controlling heat…

Mesoscale and Nanoscale Physics · Physics 2019-08-19 Jorden Senior , Azat Gubaydullin , Bayan Karimi , Joonas T. Peltonen , Joachim Ankerhold , Jukka P. Pekola

Superconducting thin-film electronics are attractive for their low power consumption, fast operating speeds, and ease of interface with cryogenic systems such as single-photon detector arrays, and quantum computing devices. However, the…

We demonstrate electronic cooling of a suspended AuPd island using superconductor-insulator-normal metal tunnel junctions. This was achieved by developing a simple fabrication method for reliably releasing narrow submicron sized metal…

Mesoscale and Nanoscale Physics · Physics 2009-02-25 J. T. Muhonen , A. O. Niskanen , M. Meschke , Yu. A. Pashkin , J. S. Tsai , L. Sainiemi , S. Franssila , J. P. Pekola

We discuss inherent thermometry in a Superconductor - Normal metal - Superconductor tunnel junction. In this configuration, the energy selectivity of single-particle tunneling can provide a significant electron cooling, depending on the…

Superconductivity · Physics 2009-11-13 Hervé Courtois , Sukumar Rajauria , Philippe Gandit , Frank Hekking , Bernard Pannetier

Electron tunneling between superconductors and normal metals has been used for an efficient refrigeration of electrons in the latter. Such cooling is a non-linear effect and usually requires a large voltage. Here we study the electron…

Superconductivity · Physics 2019-11-13 Mikel Rouco , Tero T. Heikkilä , F. Sebastian Bergeret

Thermo-electric transport at the nano-scale is a rapidly developing topic, in particular in superconductor-based hybrid devices. In this review paper, we first discuss the fundamental principles of electronic cooling in mesoscopic…

Superconductivity · Physics 2015-06-19 Hervé Courtois , Frank W. J. Hekking , Hung Q. Nguyen , Clemens Winkelmann

We investigate nonlinear thermal transport properties of a single interacting quantum dot with two energy levels tunnel-coupled to two electrodes using nonequilibrium Green function method and Hartree-Fock decoupling approximation. In the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Chen Xue-Ou , Bing Dong , X. L. Lei

The performance of hybrid superconducting electronic coolers is usually limited by the accumulation of hot quasi-particles in the superconducting leads. This issue is all the more stringent in large-scale and high-power devices, as required…

Mesoscale and Nanoscale Physics · Physics 2014-02-25 H. Q. Nguyen , T. Aref , V. J. Kauppila , M. Meschke , C. B. Winkelmann , H. Courtois , J. P. Pekola

Ferroelectric tunnel junctions (FTJs) harness the unique combination of ferroelectricity and quantum tunneling, and thus herald new opportunities in next-generation nonvolatile memory technologies. Recent advancements in the fabrication of…

Mesoscale and Nanoscale Physics · Physics 2024-11-25 King-Fa Luo , Zhijun Ma , Daniel Sando , Qi Zhang , Nagarajan Valanoor

Thermal diode, a type of device that allows heat to flow in one direction preferentially, can be employed in many thermal applications. However, if the mechanical compliance of the thermal diode is poor, which prevents its intimate contact…

This mini-review addresses a bedrock problem for the advance of phononics: the building of feasible and efficient thermal diodes. We revisit investigations in classical and quantum systems. For the classical anharmonic chains of…

Mesoscale and Nanoscale Physics · Physics 2019-06-12 Emmanuel Pereira