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相关论文: Spin Nernst effect and Nernst effect in two-dimens…

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Since spin currents can be generated, detected, and manipulated via the spin Hall effect (SHE), the design of strong SHE materials has become a focus in the field of spintronics. Because of the recent experimental progress also the spin…

The theoretical prediction of topological insulators in 2007 triggered tremendous interest. They are of fundamental interest because of their topological twist in k-space, which comes along with unidirectional, spin-polarized surface-state…

介观与纳米尺度物理 · 物理学 2018-10-31 T. Schumann , N. Meyer , G. Mussler , J. Kampmeier , D. Grützmacher , E. Schmoranzerova , L. Braun , T. Kampfrath , J. Walowski , M. Münzenberg

We present a study of the Nernst effect in amorphous 2D superconductor InO$_x$, whose low carrier density implies low phase rigidity and strong superconducting phase fluctuations. Instead of presenting the abrupt jump expected at a BCS…

超导电性 · 物理学 2009-11-13 P. Spathis , H. Aubin , A. Pourret , K. Behnia

We report our recent predictions on the quantum Nernst effect, a novel thermomagnetic effect in the quantum Hall regime. We assume that, when the chemical potential is located between a pair of neighboring Landau levels, edge currents…

介观与纳米尺度物理 · 物理学 2017-08-23 Hiroaki Nakamura , Naomichi Hatano , Ryoen Shirasaki

The discovery of two-dimensional van der Waals (vdW) magnetic materials has propelled advancements in technological devices. The Nernst effect, which generates a transverse electric voltage in the presence of a longitudinal thermal…

The anomalous Nernst effect generates transverse voltage to the applied thermal gradient in magnetically ordered systems. The effect was previously considered excluded in compensated magnetic materials with collinear ordering. However, in…

The Nernst effect has recently proven as a sensitive probe for detecting unusual normal state properties of unconventional superconductors. Here we present a systematic study of the Nernst effect of the iron pnictide superconductor \laf…

超导电性 · 物理学 2015-05-19 Agnieszka Kondrat , Günter Behr , Bernd Büchner , Christian Hess

We study electron transport through a serial double quantum dot with Rashba spin-orbit interaction (SOI) and Zeeman field of amplitude B in presence of local Coulomb repulsion. The linear conductance as a function of a gate voltage Vg…

强关联电子 · 物理学 2011-03-15 S. Grap , S. Andergassen , J. Paaske , V. Meden

Recently, Seebeck coefficients of ferromagnetic conductors are found to be spin-dependent. However straightforward method of accurately determining its spin polarization is still to be developed. Here, we have derived a linear dependence of…

材料科学 · 物理学 2015-05-29 C. Fang , C. H. Wan , Z. H. Yuan , H. Wu , Q. T. Zhang , L. B. Mo , X. Zhang , X. F. Han

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

We study the spin edge states, induced by the combined effect of spin-orbit interaction (SOI) and hard-wall confining potential, in a two-dimensional electron system, exposed to a perpendicular magnetic field. We find an exact solution of…

介观与纳米尺度物理 · 物理学 2013-07-29 V. L. Grigoryan , A. Matos Abiague , S. M. Badalyan

Kagome magnets exhibit a range of novel and nontrivial topological properties due to the strong interplay between topology and magnetism, which also extends to their thermoelectric applications. Recent advances in the study of magnetic…

强关联电子 · 物理学 2026-01-14 Jiajun Ma , Jiaxing Liao , Yazhou Li , Yuwei Zhang , Jialu Wang , Jinke Bao , Yan Sun , Shuang Jia , Yuke Li

We find a specific mechanism of background spin currents in two-dimensional electron systems with spatially nonuniform spin-orbit interaction (SOI) at thermodynamic equilibrium, in particular, in the systems consisting of regions with and…

介观与纳米尺度物理 · 物理学 2008-10-04 Vladimir A. Sablikov , Aleksei A. Sukhanov , Yurii Ya. Tkach

A long-range interaction via virtual particle-hole pairs between Fermi-liquid quasiparticles leads to a nonanalytic behavior of the spin susceptibility $\chi$ as a function of the temperature ($T$), magnetic field ($\mathbf{B}$), and…

介观与纳米尺度物理 · 物理学 2015-03-17 Robert Andrzej Zak , Dmitrii L. Maslov , Daniel Loss

Motivated by the recent discovery of a large anomalous Nernst effect in Co$_2$MnGa, Fe$_3X$ ($X$=Al, Ga) and Co$_3$Sn$_2$S$_2$, we performed a first-principles study to clarify the origin of the enhancement of the transverse thermoelectric…

We calculate the phonon-drag contribution to the transverse (Nernst) thermoelectric power $S_{yx}$ in a bismuth single crystal subjected to a quantizing magnetic field. The calculated heights of the Nernst peaks originating from the hole…

其他凝聚态物理 · 物理学 2009-08-24 Mari Matsuo , Akira Endo , Naomichi Hatano , Hiroaki Nakamura , Ryoen Shirasaki , Ko Sugihara

Anomalous Nernst effect generates a transverse voltage perpendicular to the temperature gradient. It has several advantages compared with the longitudinal thermoelectricity for energy conversion, such as decoupling of electronic and thermal…

材料科学 · 物理学 2023-01-02 Panshuo Wang , Zongxiang Hu , Xiaosong Wu , Qihang Liu

Control of magnetization dynamics is one of the primary goals in spintronics. It has been demonstrated using spin Hall effect i.e charge current to spin current conversion in non-magnetic metal which has large spin-orbit coupling such as…

The magnetic field and angular dependencies of the thermopower and Nernst effect of the quasi-two-dimensional organic conductor alpha-(ET)2KHg(SCN)4 are experimentally measured at temperatures below (4 K) and above (9 K) the transition…

强关联电子 · 物理学 2015-05-28 D. Krstovska , E. Steven , E. S. Choi , J. S. Brooks

Elemental bismuth provides a rare opportunity to explore the fate of a three-dimensional gas of highly mobile electrons confined to their lowest Landau level. Coulomb interaction, neglected in the band picture, is expected to become…

强关联电子 · 物理学 2010-07-29 Huan Yang , Benoit Fauque , Liam Malone , Arlei B. Antunes , Zengwei Zhu , Ctirad Uher , Kamran Behnia