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相关论文: Nernst-Ettingshausen effect in two-component elect…

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We consider the Nernst-Ettingshausen (NE) effect in the presence of semiclassically strong magnetic fields for a quasi-two dimensional system with a parabolic or linear dispersion of carriers. We show that the occurring giant oscillations…

介观与纳米尺度物理 · 物理学 2011-07-11 Igor A. Luk'yanchuk , Andrei A. Varlamov , Alexey V. Kavokin

A theory of the fluctuation-induced Nernst effect is developed for arbitrary magnetic fields and temperatures beyond the upper critical field line in a two-dimensional superconductor. First, we derive a simple phenomenological formula for…

超导电性 · 物理学 2009-02-09 M. N. Serbyn , M. A. Skvortsov , A. A. Varlamov , Victor Galitski

The Nernst effect is known to be a sensitive probe of the scattering mechanisms. Large Nernst effects, a decade ago a topic mainly in vortex dynamics in superconductors, have recently attracted interest in correlated systems like cuprate…

强关联电子 · 物理学 2010-11-22 Janik Kailasvuori

We study electronic transport in graphene under the influence of a transversal magnetic field $\f{B}(\f{r})=B(x)\f{e}_z$ with the asymptotics $B(x\to\pm\infty)=\pm B_0$, which could be realized via a folded graphene sheet in a constant…

介观与纳米尺度物理 · 物理学 2013-01-18 Friedemann Queisser , Ralf Schützhold

The thermopower and Nernst-Ettingshausen (NE) effect in degenerate semiconductors and semimetals placed in high electric and magnetic fields are calculated by taking into account the heating of both electrons and phonons as well as their…

凝聚态物理 · 物理学 2007-05-23 M. M. Babaev , T. M. Gassym , M. Tas , M. Tomak

For maintaining gauge invariance in a magnetic field, the heat current operator should include the magnetic term. Taking this term into account, we revised calculations of the Nernst-Ettingshausen effect above the superconducting…

超导电性 · 物理学 2007-05-23 A. Sergeev , M. Yu. Reizer , V. Mitin

In amorphous superconducting thin films of $Nb_{0.15}Si_{0.85}$ and $InO_x$, a finite Nernst coefficient can be detected in a wide range of temperature and magnetic field. Due to the negligible contribution of normal quasi-particles,…

超导电性 · 物理学 2015-05-13 A. Pourret , P. Spathis , H. Aubin , K. Behnia

The role of nematic fluctuations for unconventional superconductivity has been subject of intense discussions for many years. In iron-based superconductors, the most established probe for electronic-nematic fluctuations, i.e. the…

We report the observation of a universal scaling of the Nernst coefficient over a wide intermediate temperature range in heavy fermion materials, including the superconductors CeCu$_2$Si$_2$, CeCoIn$_5$, and Ce$_2$PdIn$_8$, the…

强关联电子 · 物理学 2020-07-22 Yi-feng Yang

Recent experiments show that the Nernst-Ettingshausen effect is orders of magnitude stronger than the thermoelectric Seebeck effect in superconductors above the critical temperature. We explain different magnitudes of the two effects…

超导电性 · 物理学 2015-08-05 Alexey V. Kavokin , Andrey A. Varlamov

We investigate out-of-the equilibrium properties of the electron liquid in a two-dimensional disordered superconductor subject to the electric bias and temperature gradient. We calculate kinetic coefficients and Nyquist noise, and find that…

强关联电子 · 物理学 2015-03-17 A. Petković , N. M. Chtchelkatchev , T. I. Baturina , V. M. Vinokur

Following the observation of an anomalous Nernst signal in cuprates, the Nernst effect was explored in a variety of metals and superconductors during the past few years. This paper reviews the results obtained during this exploration,…

强关联电子 · 物理学 2009-02-10 Kamran Behnia

The Nernst effect is the transverse electric field produced by a longitudinal thermal gradient in presence of magnetic field. In the beginning of this century, Nernst experiments on cuprates were analyzed assuming that: i) The contribution…

强关联电子 · 物理学 2016-03-28 Kamran Behnia , Hervé Aubin

When a superconductor is warmed above its critical temperature $T_c$, long range order is destroyed by fluctuations in the order parameter. These fluctuations can be probed by measurements of conductivity, diamagnetism, and of the Nernst…

超导电性 · 物理学 2009-11-11 Daniel Podolsky , Srinivas Raghu , Ashvin Vishwanath

Here, we demonstrate an interplay between superconducting fluctuations and electron-electron interaction (EEI) by low temperature magnetotransport measurements for a set of 2D disordered TiN thin films. While cooling down the sample, a…

超导电性 · 物理学 2023-01-31 Sachin Yadav , Vinay Kaushik , M. P. Saravanan , Sangeeta Sahoo

We show that the strong Nernst signal observed recently in amorphous superconducting films far above the critical temperature is caused by the fluctuations of the superconducting order parameter. We demonstrate a striking agreement between…

超导电性 · 物理学 2015-05-13 Karen Michaeli , Alexander M. Finkel'stein

Nernst effect, the transverse voltage generated by a longitudinal thermal gradient in presence of magnetic field has recently emerged as a very sensitive, yet poorly understood, probe of electron organization in solids. Here we report on an…

强关联电子 · 物理学 2012-04-18 Zengwei Zhu , Huan Yang , Benoit Fauque , Yakov Kopelevich , Kamran Behnia

Ultrathin FeSe films on SrTiO3 substrate show interface-enhanced superconductivity. However, how the superconductivity is established including superconducting fluctuations remains unclear. This study investigates the Nernst effect, which…

超导电性 · 物理学 2025-10-20 Tomoki Kobayashi , Ryo Ogawa , Atsutaka Maeda

The Nernst effect, a transverse thermoelectric phenomenon, has attracted significant attention for its potential in energy conversion, thermoelectrics, and spintronics. However, achieving high performance and versatility at low temperatures…

介观与纳米尺度物理 · 物理学 2024-06-25 Gabriele Pasquale , Zhe Sun , Kenji Watanabe , Takashi Taniguchi , Andras Kis

We study a model for the transverse thermoelectric response due to quantum superconducting fluctuations in a two-leg Josephson ladder, subject to a perpendicular magnetic field B and a transverse temperature gradient. The off-diagonal…

超导电性 · 物理学 2015-06-11 Yeshayahu Atzmon , Efrat Shimshoni
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