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Topological insulators subject to a time-symmetry-breaking perturbation are predicted to display a magneto-electric effect that causes the electric and magnetic induction fields to mix at the material's surface. This effect induces…

Optics · Physics 2015-10-22 J. A. Crosse

The principles of the thermoelectric phenomenon, including Seebeck effect, Peltier effect, and Thomson effect are discussed. The dependence of the thermoelectric devices on the figure of merit, Seebeck coefficient, electrical conductivity,…

Materials Science · Physics 2017-06-29 Ibrahim M Abdel-Motaleb , Syed M. Qadri

We demonstrate that thermoelectric signal as well as dc Josephson current may be severely enhanced in multi-terminal superconducting hybrid nanostructures exposed to a temperature gradient. At temperatures $T$ strongly exceeding the…

Mesoscale and Nanoscale Physics · Physics 2020-05-13 Mikhail S. Kalenkov , Pavel E. Dolgirev , Andrei D. Zaikin

During the last few years, the increasing demand of energy for refrigeration applications has relived the interest of the scientific community in the study of alternative methods to the traditional gas-based refrigeration. Within this…

Other Condensed Matter · Physics 2015-10-28 M. Quintero , P. Gaztañaga , I. Irurzun

Current-driven insulator-metal transitions are in many cases driven by Joule heating proportional to the square of the applied current. Recent nano-imaging experiments in Ca$_2$RuO$_4$ reveal a metal-insulator phase boundary that depends on…

Strongly Correlated Electrons · Physics 2020-08-12 Giuliano Chiriacò , Andrew Millis

We present a study on inelastic thermoelectric devices, wherein charge currents and electronic and phononic heat currents are intricately interconnected. The employment of double quantum dots in conjunction with a phonon bath positions them…

Mesoscale and Nanoscale Physics · Physics 2024-08-06 Bei Cao , Chongze Han , Xiang Hao , Chen Wang , Jincheng Lu

Considering screeening of electron scattering interactions in terms of the finite-temperature STLS theory and solving the linearized Boltzmann equation (with no appeal to a relaxation time approximation), we present a theoretical analysis…

Materials Science · Physics 2011-06-08 S. Y. Liu , X. L. Lei , Norman J. M. Horing

By means of quasiparticle-energy calculations in the G0W0 approach, we show for the prototypical insulator/semiconductor system NaCl/Ge(001) that polarization effects at the interfaces noticeably affect the excitation spectrum of molecules…

Materials Science · Physics 2009-06-26 Christoph Freysoldt , Patrick Rinke , Matthias Scheffler

We experimentally investigate thermoelectric response of a 100~nm thick SnSe single crystal flake under the current-induced dc electric field. Thermoelectric response appears as a second-harmonic transverse voltage $V_{xy}^{2\omega}$, which…

Mesoscale and Nanoscale Physics · Physics 2021-07-14 N. N. Orlova , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

We report on a temperature-induced transition from a conventional semiconductor to a two-dimensional topological insulator investigated by means of magnetotransport experiments on HgTe/CdTe quantum well structures. At low temperatures, we…

Several recent experiments on three-dimensional topological insulators claim to observe a large charge current-induced non-equilibrium ensemble spin polarization of electrons in the helical surface state. We present a comprehensive…

Materials Science · Physics 2016-06-29 Pengke Li , Ian Appelbaum

Thermoelectric effects have been applied to power generators and temperature sensors that convert waste heat into electricity. The effects, however, have been limited to electrons to occur, and inevitably disappear at low temperatures due…

A theory of thermoelectric phenomena in superfluid $^4He$ is developed. It is found an estimation of the dipole moment of helium atom arising due to electron shell deformation caused by pushing forces from the side of its surrounding atoms.…

Other Condensed Matter · Physics 2015-05-20 V. P. Mineev

The paper describes preliminary investigations of a new effect in conducting anisotropic liquids, which leads to thermoelectric conversion of energy. Nematic liquid crystals with semiconducting dopes are used. A thermoelectric figure of…

Soft Condensed Matter · Physics 2013-08-02 Sergey I. Trashkeev , Alexey N. Kudryavtsev

Using Landau-Ginzburg-Devonshire approach we calculated the equilibrium distributions of electric field, polarization and space charge in the ferroelectric-semiconductor heterostructures containing proper or incipient ferroelectric thin…

The angular dependence of the thermal transport in insulating or conducting ferromagnets is derived on the basis of the Onsager reciprocity relations applied to a magnetic system. It is shown that the angular dependence of the temperature…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 J. -E. Wegrowe , H. -J. Drouhin , D. Lacour

We consider transport properties of a two dimensional topological insulator in a double quantum point contact geometry in presence of a time-dependent external field. In the proposed setup an external gate is placed above a single…

Mesoscale and Nanoscale Physics · Physics 2017-03-15 F. Ronetti , M. Carrega , D. Ferraro , J. Rech , T. Jonckheere , T. Martin , M. Sassetti

How to macroscopically control the flow of heat at will is up to now a challenge, which, however, is very important for human life since heat flow is a ubiquitous phenomenon in nature. Inspired by intelligent electronic components or…

Materials Science · Physics 2016-07-25 Xiangying Shen , Ying Li , Jiping Huang , Yushan Ni

We theoretically study the electrolyte Seebeck effect in the vicinity of a heated metal nanostructure, such as the cap of an active Janus colloid in an electrolyte, or gold- coated interfaces in optofluidic devices. The thermocharge…

Soft Condensed Matter · Physics 2018-02-27 Aboubakry Ly , Arghya Majee , Alois Würger

Polypyrrole chemically synthesized on PET gives rise to textiles with a high electric conductivity, suitable for several applications from antistatics to electromagnetic interference shielding devices. Here, we discuss investigations on…

Materials Science · Physics 2014-01-15 J. Avloni , L. Florio , A. R. Henn , A. Sparavigna
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