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Theoretical thermoelectric nanophysics models of low-dimensional electronic heat engine and refrigerator devices, comprising two-dimensional hot and cold reservoirs and an interconnecting filtered electron transport mechanism have been…

材料科学 · 物理学 2014-06-27 Xiaoguang Luo , Kailin Long , Jun Wang , Teng Qiu , Nian Liu , Jizhou He

We investigate thermoelectric efficiency of systems with broken time reversal symmetry under a three-terminal transport. Using a model of Aharonov-Bohm interferometer formed with three noninteracting quantum dots, we show that Carnot…

介观与纳米尺度物理 · 物理学 2013-04-11 Vinitha Balachandran , Giuliano Benenti , Giulio Casati

A detailed investigation of the non-equilibrium steady-state electric and thermoelectric transport properties of a quantum dot coupled to the normal metallic and s-wave superconducting reservoirs (N-QD-S) are provided within the Coulomb…

介观与纳米尺度物理 · 物理学 2022-02-22 Sachin Verma , Ajay

We study the statistical properties of charge and energy transport in electron conducting junctions with electron-phonon interactions, specifically, the thermoelectric efficiency and its fluctuations. The system comprises donor and acceptor…

统计力学 · 物理学 2016-01-20 Bijay Kumar Agarwalla , Jian-Hua Jiang , Dvira Segal

We show that coherent electron transport through zero-dimensional systems can be used to tailor the shape of the system's transmission function. This quantum-engineering approach can be used to enhance the performance of quantum dots or…

介观与纳米尺度物理 · 物理学 2011-10-10 Olov Karlstrom , Heiner Linke , Gunnar Karlstrom , Andreas Wacker

The electron transport though ferromagnetic metal-superconducting hybrid devices is considered in the non-equilibrium Green's function formalism in the quasiclassical approximation. Attention if focused on the limit in which the exchange…

超导电性 · 物理学 2009-10-31 W. Belzig , Arne Brataas , Yu. V. Nazarov , Gerrit E. W. Bauer

Conventional thermionic power generators and refrigerators utilize a barrier in the direction of transport to selectively transmit high-energy electrons. Here we show that the energy spectrum of electrons transmitted in this way is not…

统计力学 · 物理学 2009-11-10 T. E. Humphrey , H. Linke

Low-dimensional electronic systems in thermoelectrics have the potential to achieve high thermal-to-electric energy conversion efficiency. A key measure of performance is the efficiency when the device is operated under maximum power…

介观与纳米尺度物理 · 物理学 2015-05-20 Natthapon Nakpathomkun , Hongqi Q. Xu , Heiner Linke

Protecting superconducting quantum circuits from non-ideal return loss, including out-of-band circulator behavior and enhancing the performance of broadband quantum-limited amplifiers can be accomplished using a superconducting version of a…

New strategy is presented to optimize the performance of Thermoelectric (TE) coolers. This approach breaks optimizing TE coolers free from traditional methods of controlling temperature or engineering materials and the structural properties…

系统与控制 · 电气工程与系统科学 2024-07-26 Alireza Amiri-Margavi , Reza Jamali , Seyed Aria Hosseini , Farschad Torabi

Thermoelectric devices at the nanoscale offer promising routes for on-chip refrigeration and waste-heat recovery, yet most semiconductor-based implementations suffer from limited tunability and narrow operational ranges. We introduce a…

介观与纳米尺度物理 · 物理学 2025-08-29 Phillip Mercebach , Sun-Yong Hwang , Bo Lu , Björn Sothmann , Yukio Tanaka , Pablo Burset

Utilizing the non-coherent quantum transport formalism, we investigate thermoelectric performance across dissipative superlattice configurations in the linear regime of operation. Using the {\it{dissipative}} non-equilibrium Green's…

介观与纳米尺度物理 · 物理学 2020-12-30 Pankaj Priyadarshi , Bhaskaran Muralidharan

We investigate quantum transport and thermoelectrical properties of a finite-size Su-Schrieffer-Heeger model, a paradigmatic model for a one-dimensional topological insulator, which displays topologically protected edge states. By coupling…

统计力学 · 物理学 2018-07-25 Sina Böhling , Georg Engelhardt , Gloria Platero , Gernot Schaller

The authors use two insulator layers in thermotunnel refrigerator to modify the shape of the tunneling barrier so that electrons with high kinetic energy pass it with increased probability. Theoretical analysis show that the overall…

介观与纳米尺度物理 · 物理学 2008-07-17 Avto Tavkhelidze , Vasiko Svanidze , Leri Tsakadze

Single-ended circuit topologies, and a theorem for the development thereof, are presented with which one may realize constant-resistance (or reflectionless) filters, having ideally zero reflection coefficient at all frequencies and from all…

天体物理仪器与方法 · 物理学 2019-04-09 Augusto Guilabert , Matthew Morgan , Tod Boyd

Some of the most promising candidates for next generation thermoelectrics are nanocomposites due to their low thermal conductivities that result from phonon scattering on the boundaries of the various material phases. However, in order to…

材料科学 · 物理学 2019-03-04 Samuel Foster , Mischa Thesberg , Neophytos Neophytou

Recent advances in experimental control of colloidal systems have spurred a revolution in the production of mesoscale thermodynamic devices. Functional "textbook" engines, such as the Stirling and Carnot cycles, have been produced in…

统计力学 · 物理学 2022-06-15 Adam G. Frim , Michael R. DeWeese

We derive the expressions of photon energy and particle currents inside an open nanosystem interacting with light using non-equilibrium Green's functions. The model allows different temperatures for the electron reservoirs, which basically…

介观与纳米尺度物理 · 物理学 2017-04-05 Fabienne Michelini , Adeline Crépieux , Katawoura Beltako

A transverse thermoelectric generator for magnetic-field-free and high-density power generation utilizing the anomalous Nernst effect is constructed and its performance is characterized. By alternately stacking two different permanent…

材料科学 · 物理学 2024-11-25 Fuyuki Ando , Takamasa Hirai , Ken-ichi Uchida

Following the nonequilibrium Green's function formalism we study the thermal transport in a composite chain subject to a time-dependent perturbation. The system is formed by two finite linear asymmetric harmonic chains subject to an on-site…

介观与纳米尺度物理 · 物理学 2016-09-21 N. Beraha , A. Soba , M. F. Carusela