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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…

Mesoscale and Nanoscale Physics · Physics 2025-08-29 Phillip Mercebach , Sun-Yong Hwang , Bo Lu , Björn Sothmann , Yukio Tanaka , Pablo Burset

Magnetic topological materials such as Weyl and Dirac magnets exhibit unconventional electronic properties arising from the interplay between magnetic order and band topology, leading to remarkable thermomagnetic and thermoelectric effects.…

We have recently shown that normal-metal/superconductor (N/S) bilayer TESs (superconducting Transition-Edge Sensors) exhibit weak-link behavior.1 Here we extend our understanding to include TESs with added noise-mitigating normal-metal…

Using first-principles calculations combined with Boltzmann transport theory, we investigate the effects of topological edge states on the thermoelectric properties of Bi nanoribbons. It is found that there is a competition between the edge…

Materials Science · Physics 2016-10-13 L. Cheng , H. J. Liu , J. H. Liang , J. Zhang , J. Wei , P. H. Jiang , D. D. Fan

The thermoelectric properties of two typical SiGe nanotubes are investigated using a combination of density functional theory, Boltzmann transport theory, and molecular dynamics simulations. Unlike carbon nanotubes, these SiGe nanotubes…

Materials Science · Physics 2015-02-24 J. Wei , H. J. Liu , X. J. Tan , L. Cheng , J. Zhang , D. D. Fan , J. Shi , X. F. Tang

A Heat Flux Sensor (HFS) facilitates the visualization of heat flow, unlike a temperature sensor, and is anticipated to be a key technology in managing waste heat. Recently, an HFS utilizing the Anomalous Nernst Effect (ANE) has been…

On-chip temperature sensing on a micro- to nanometer scale is becoming more desirable as the complexity of nanodevices and size requirements increase and with it the challenges in thermal probing and management. This highlights the need for…

Applied Physics · Physics 2020-04-15 Achim Harzheim , Fabian Könemann , Bernd Gotsmann , Herre van der Zant , Pascal Gehring

WTe$_2$ is one of a series of recently discovered high mobility semimetals, some of whose properties are characteristic of topological Dirac or Weyl metals. One of its most interesting properties is the unsaturated giant magnetoresistance…

A 3D thermoelectric numerical model is used to investigate different internal heat loss mechanisms for a thermoelectric generator with bismuth telluride p- and n-legs. The model considers all thermoelectric effects, temperature dependent…

Materials Science · Physics 2014-09-25 R. Bjørk , D. V. Christensen , D. Eriksen , N. Pryds

Transport and thermoelectric coefficients (including also spin thermopower) of silicene nanoribbons with zigzag edges are investigated by {\it ab-initio} numerical methods. Local spin density of such nanoribbons reveals edge magnetism. Like…

Materials Science · Physics 2015-06-16 K. Zberecki , M. Wierzbicki , J. Barnaś , R. Swirkowicz

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

Establishing strong electron-correlations not only shed lights on overcoming the trade-off limitations for optimizing thermoelectric materials, but can also introduce new functionalities that extend the vision of conventional thermoelectric…

Ferromagnetic metallic oxides have potential applications in spincaloric devices which utilize the spin property of charge carriers for interconversion of heat and electricity through the spin Seebeck or the anomalous Nernst effect or both.…

Materials Science · Physics 2021-07-27 M. Manikandan , A. Ghosh , R. Mahendiran

We have simultaneously measured conductance and thermoelectric power (TEP) of individual silicon and germanium/silicon core/shell nanowires in the field effect transistor device configuration. As the applied gate voltage changes, the TEP…

Mesoscale and Nanoscale Physics · Physics 2013-07-02 Yuri M. Brovman , Joshua P. Small , Yongjie Hu , Ying Fang , Charles M. Lieber , Philip Kim

Molecular junctions and similar devices described by an energy dependent transmission coefficient can have a high linear response thermoelectric figure of merit. Since such devices are inherently non-linear, the full thermodynamic…

Mesoscale and Nanoscale Physics · Physics 2013-10-22 Selman Hershfield , K. A. Muttalib , Bradley J. Nartowt

We have combined DFT calculations with the Boltzmann semiclassical transport theory to investigate the effect of selective hydrogenation on the thermoelectric properties of tetra-penta-deca-hexagonal graphene (TPDH-gr), a recently proposed…

Wearable thermoelectric devices show promises to generate electricity in a ubiquitous, unintermittent and noiseless way for on-body applications. Three-dimensional thermoelectric textiles (TETs) outperform other types in smart textiles…

Thermoelectric effects are more sensitive and promising probes to topological properties of emergent materials, but much less addressed compared to other physical properties. Zirconium pentatelluride (ZrTe$_{5}$) has inspired active…

Materials Science · Physics 2019-11-13 J. L. Zhang , C. M. Wang , C. Y. Guo , X. D. Zhu , J. Y. Yang , Y. Q. Wang , Z. Qu , L. Pi , H. Z. Lu , M. L. Tian

A thermoelectric voltage is induced in a junction, constituted of two dissimilar materials under a temperature gradient. Similarly, a thermosize voltage is expected to be induced in a junction made by the same material but having different…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 Alhun Aydin , Jonas Fransson , Altug Sisman

Integrated photodetectors are crucial for their high speed, sensitivity, and efficient power consumption. In these devices, photocurrent generation is primarily attributed to the photovoltaic (PV) effect, driven by electron hole…

Materials Science · Physics 2024-10-18 Da Xu , Qiushi Liu , Boqun Liang , Ning Yu , Xuezhi Ma , Yaodong Xu , Takashi Taniguchi , Roger K. Lake , Ruoxue Yan , Ming Liu
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