Theory of the spin seebeck effect

Author: vame

August undefined, 2024

Webb10 apr. 2024 · We report on the single-molecule electronic and thermoelectric properties of strategically chosen anthracene-based molecules with anchor groups capable of binding to noble metal substrates, such as gold and platinum. Specifically, we study the effect of different anchor groups, as well as quantum interference, on the electric conductance … WebbThe spin-Seebeck effect together with a high spin thermoelectric conversion efficiency …

Geometry of the longitudinal spin Seebeck effect.

Webb24 juli 2024 · Here, we reveal the initial steps of this spin Seebeck effect with <27 fs time resolution using terahertz spectroscopy on bilayers of ferrimagnetic yttrium iron garnet and platinum. Upon... Webb9 juli 2013 · Abstract We theoretically investigate the longitudinal spin Seebeck effect, in which the spin current is injected from a ferromagnet into an attached nonmagnetic metal in a direction parallel to the temperature gradient. high school for arts imagination and inquiry

Recent progress in the spin Seebeck and spin Peltier effects in ...

Webb11 apr. 2024 · Fig. 4: Quantum Mpemba effect in interacting integrable and non-integrable spin chains. We plot the time evolution of the entanglement asymmetry Δ S A ( t ) after preparing the spin chain at t ... Webb28 sep. 2012 · The spin Seebeck effect refers to the generation of a spin voltage caused … Webb28 sep. 2012 · The spin Seebeck effect refers to the generation of a spin voltage caused … high school for art and design nyc

Picosecond Spin Seebeck Effect in Magnetic Insulators

Theory of the spin Seebeck effect - IOPscience

WebbAbstract. The spin Seebeck effect (SSE) refers to spin current generation in a magnetic insulator/non-magnetic metal heterostructure due to a thermal gradient and most SSE experiments typically use an electric current as heat source. This study uses Terahertz (THz) time-domain emission spectroscopy where a femtosecond laser induces a … WebbSeebeck effect, production of an electromotive force (emf) and consequently an electric current in a loop of material consisting of at least two dissimilar conductors when two junctions are maintained at different temperatures. The conductors are commonly metals, though they need not even be solids. The German physicist Thomas Johann Seebeck … high school for art and businessWebb5 apr. 2024 · Here we present a theory for the diffusive magnonic spin current generated in a magnetic insulator layer by a thermal gradient in the spin Seebeck effect. We show that the formulations describing magnonic perturbation using a position-dependent chemical potential and those using a magnon accumulation are completely equivalent. high school for arts in md

"WebbThe spin Seebeck effect (SSE) refers to the generation of a spin voltage caused by a temperature gradient in a ferromagnet, which enables the thermal injection of spin currents from the ferromagnet into an attached nonmagnetic metal over a macroscopic scale of several millimeters. Despite decades of research into thermoelectric materials and … " - Theory of the spin seebeck effect

Theory of the spin seebeck effect

Webbför 2 dagar sedan · In non-spin-degenerate TE materials, spin provides a new dimension for the enhancement of the S. (32) There are four main ways of spin caloritronic effects that have been applied to enhance the S: (33) magnon drag, paramagnon drag, spin entropy and spin fluctuation (SF). The spin Seebeck effect (SSE) provides a new dimension toward S … Webb24 jan. 2014 · We derive expressions for the efficiency and figure of merit of two spin caloritronic devices based on the spin Seebeck effect (SSE), i.e. the generation of spin currents by a temperature...

Did you know?

Webb1 juli 2024 · To clearly show how SSE occurs in BMS, we study the thermal spin transport (TST) characters of magnetic MoS 2 nanotube (NT) using first-principles density function theory (DFT) and non-equilibrium Green’s function (NEGF) methods. Controlling synthesis of MoS 2 NT is already a proven technique [9], and various field-effect transistors based … Webb11 apr. 2024 · We investigated Andreev reflection of graphene-based normal/superconductor single and double junctions under the modulation of non-resonant circularly polarized light, staggered potential, and exchange field.

Webb13 apr. 2024 · This paper presents the mechanism of electrical conductivity in nanocomposite polyacrylonitrile (PAN) fibers modified with silver nanoparticles (AgNPs). Fibers were formed by the wet-spinning method. The nanoparticles were introduced into the polymer matrix as a result of direct synthesis in the spinning solution from which the … WebbMagnetic field effects (MPE) of radical pair (RP) recombination in micelles are investigated both analytically and numerically. The confinement effect of a micelle is modeled by a spherically symmetric potential well. The results show that the contribution from ST_ transitions to all kind of MFEs is significantly increased due to the confinement effect. …

WebbThe spin Seebeck effect refers to the generation of a spin voltage caused by a … Webb15 jan. 2014 · Abstract We present a theoretical model for the longitudinal spin-Seebeck …

WebbAbstract. The spin Seebeck effect (SSE) refers to spin current generation in a magnetic …

Webb11 apr. 2024 · We investigated Andreev reflection of graphene-based … how many checks in a yearWebb13 apr. 2024 · Double perovskites with the general formula A2BB′O6 have been the subject of several studies for of their magnetic properties. In this work, Ba2NiMoO6 was synthesized using the solid-state reaction method. At room temperature, the structural refinement reveals a cubic crystal, space group Fm-3 m, with a = 7.89 Å. The magnetic, … how many checks in a checkbookWebb23 mars 2024 · Device miniaturization and low-energy dissipation are two urgent requirements in future spintronics devices. The narrowest zigzag graphene nanoribbons (ZGNRs), which are composed of just two coupled carbon-atom chains connected with carbon tetragons, are promising candidates that meet both of the above requirements … how many checks in one boxWebb19 jan. 2016 · The spin Seebeck effect (SSE) consists in the generation of a spin current … how many checks in a year paid biweeklyWebbSpin Seebeck effect In 2008, physicists discovered the Spin Seebeck effect (SSE). This effect refers to the generation of a spin voltage caused by a temperature gradient in a ferromagnet. This gradient enables the thermal injection of spin currents from the ferromagnet into a nonmagnetic metal. high school for community leadership nicheWebb12 jan. 2024 · By taking advantage of the fact that the SSE signal in our devices is typically contaminated with the anomalous Nernst effect (ANE), we show that the total thermo-voltage obtained from our devices can be enhanced by the significant ANE signals exhibited by the Co and Fe spin detectors. high school for autistic kids australiaWebb9 okt. 2008 · The present study has also shown that, in combination with the ISHE, the … high school for business