中文
相关论文

相关论文: How to control Spin-Seebeck current in a metal-qua…

200 篇论文

In this work, we study the conductance and the thermoelectric properties of a quantum dot embedded between two metallic leads with a side-coupled triple quantum dot molecule under a magnetic field. We focus on the spin polarization and…

介观与纳米尺度物理 · 物理学 2017-10-16 J. P. Ramos-Andrade , F. J. Peña , A. González , O. Ávalos-Ovando , P. A. Orellana

The spin Seebeck effect is studied across a charge insulating magnetic junction, in which thermal-spin conjugate transport is assisted by the exchange interactions between the localized spin in the center and electrons in metallic leads. We…

介观与纳米尺度物理 · 物理学 2014-06-23 Jie Ren , Jonas Fransson , Jian-Xin Zhu

We first bring up the concept of spin-current Seebeck effect based on a recent experiment [Nat. Phys. {\bf 8}, 313 (2012)], and investigate the spin-current Seebeck effect in quantum dot (QD) systems. Our results show that the spin-current…

介观与纳米尺度物理 · 物理学 2014-01-08 Zhi-Cheng Yang , Qing-Feng Sun , X. C. Xie

We investigate the thermoelectric properties of a quantum dot coupled to ferromagnetic and superconducting electrodes. The combination of spin polarized tunneling at the ferromagnetic-quantum dot interface and the application of an external…

介观与纳米尺度物理 · 物理学 2016-08-10 Sun-Yong Hwang , Rosa Lopez , David Sanchez

We propose a highly efficient thermoelectric diode device built from the coupling of a quantum dot with a normal or ferromagnetic electrode and a superconducting reservoir. The current shows a strongly nonlinear behavior in the forward…

介观与纳米尺度物理 · 物理学 2016-09-16 Sun-Yong Hwang , David Sanchez , Rosa Lopez

We study the nonequilibrium Seebeck spin transport across metal-magnetic insulator interfaces. The conjugate-converted thermal-spin transport is assisted by the exchange interaction at the interface, between conduction electrons in the…

介观与纳米尺度物理 · 物理学 2013-12-19 Jie Ren

We present a proposal for a fully electrically controllable quantum dot based spin current injector. The device consists of a quantum dot that is strongly coupled to a ferromagnetic electrode on one side and weakly coupled to a nonmagnetic…

介观与纳米尺度物理 · 物理学 2012-10-23 Szabolcs Csonka , Ireneusz Weymann , Gergely Zarand

Spin-momentum locking in protected surface states enables efficient electrical detection of magnon decay at a magnetic-insulator/topological-insulator heterojunction. Here we demonstrate this property using the spin Seebeck effect, i.e.…

Spin caloritronics is the science and technology to control spin, charge, and heat currents in magnetic nanostructures. The spin degree of freedom provides new strategies for thermolelectric power generation that have not yet been fully…

介观与纳米尺度物理 · 物理学 2015-10-09 Adam B. Cahaya , Oleg A. Tretiakov , G. E. W. Bauer

We study the transverse spin-Seebeck effect (SSE) on the surface of a three-dimensional topological insulator (TI) thin film, such as Bi$_2$Se$_3$, which is sandwiched between two normal metal leads. The temperature bias $\Delta T$ applied…

介观与纳米尺度物理 · 物理学 2014-06-17 Po-Hao Chang , Farzad Mahfouzi , Naoto Nagaosa , Branislav K. Nikolic

We investigate thermoelectric effects in quantum well systems. Using the scattering approach for coherent conductors, we calculate the thermocurrent and thermopower both in the spin-degenerate case and in the presence of giant Zeeman…

介观与纳米尺度物理 · 物理学 2014-03-18 Javier H. Nicolau , David Sanchez

Using analytical arguments and the numerical renormalization group method we investigate the spin-thermopower of a quantum dot in a magnetic field. In the particle-hole symmetric situation the temperature difference applied across the dot…

介观与纳米尺度物理 · 物理学 2012-02-24 Tomaz Rejec , Rok Zitko , Jernej Mravlje , Anton Ramsak

The spin-resolved thermoelectric transport properties of correlated nanoscale junctions, consisting of a quantum dot/molecule asymmetrically coupled to external ferromagnetic contacts, are studied theoretically in the far-from-equilibrium…

介观与纳米尺度物理 · 物理学 2023-07-21 Anand Manaparambil , Ireneusz Weymann

The spin-Seebeck effect refers to voltage signals induced in metals by thermally driven spin currents in adjacent magnetic systems. We present a theory of the spin-Seebeck signal in the case where the conductor that supports the voltage…

介观与纳米尺度物理 · 物理学 2017-04-26 Nobuyuki Okuma , Massoud Ramezani Masir , Allan H. MacDonald

Spin caloritronics studies the interplay between charge-, heat- and spin-currents, which are initiated by temperature gradients in magnetic nanostructures. A plethora of new phenomena has been discovered that promises, e.g., to make wasted…

We theoretically investigate the thermoelectric and spin thermoelectric properties of a T-shaped double quantum dot strongly coupled to two ferromagnetic leads, focusing on transport regime where the system exhibits the two-stage Kondo…

介观与纳米尺度物理 · 物理学 2017-01-04 Krzysztof P. Wójcik , Ireneusz Weymann

We investigate the spin Seebeck effect and spin pumping in a junction between a ferromagnetic insulator and a magnetic impurity deposited on a normal metal. By the numerical renormalization group calculation, we show that spin current is…

介观与纳米尺度物理 · 物理学 2021-09-15 Tsuyoshi Yamamoto , Takeo Kato , Mamoru Matsuo

A micro-patterned spin Seebeck device is fabricated using an on-chip heater. Current is driven through a Au heater layer electrically isolated from a bilayer consisting of Fe$_3$O$_4$ (insulating ferrimagnet) and a spin detector layer. It…

介观与纳米尺度物理 · 物理学 2015-06-23 Stephen M. Wu , Frank Y. Fradin , Jason Hoffman , Axel Hoffmann , Anand Bhattacharya

We present a theoretical study of low temperature nonequilibrium transport through an interacting quantum dot in the presence of Zeeman magnetic field and current injection into one of its leads. By using a self-consistent renormalized…

介观与纳米尺度物理 · 物理学 2017-01-27 Shaon Sahoo , Adeline Crépieux , Mireille Lavagna

The magnonic spin Seebeck effect is a key element of spin caloritronic, a field that exploits thermal effects for spintronic applications. Early studies were focused on investigating the steady-state nonequilibrium magnonic spin Seebeck…

介观与纳米尺度物理 · 物理学 2020-08-26 L. Chotorlishvili , Z. Toklikishvili , X. -G. Wang , V. K. Dugaev , J. Barnaś , J. Berakdar
‹ 上一页 1 2 3 10 下一页 ›