Magneto seebeck effect
Web6 mrt. 2024 · The magneto-Seebeck effect has recently attracted considerable attention because of its novel fundamental physics and future potential application in spintronics. Herein, employing first-principles calculations and the spin-resolved Boltzmann transport theory, we have systematically investigated the … WebThe tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance.
Magneto seebeck effect
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WebMagneto-optical Kerr effect (MOKE) is an efficient approach to probe surface magnetization in thin film samples. Here we present a wide-field MOKE technique that adopts a Köhler illumination scheme to characterize the current-induced damping-like spin-orbit torque (DL-SOT) in micron-sized and unpatterned magnetic heterostructures with perpendicular … In conclusion, we have presented an experimental study of the spin-dependent Seebeck effect in Heusler compound based MTJs. Replacing one of the commonly used Co-Fe-B electrodes by a HM Heusler compound largely increases the TMS ratio from several percent up to −120% and … Meer weergeven For obtaining a basic understanding of the charge transport in an MTJ it is most convenient to examine the electronic DOS of the electrodes and their occupation (Fig. 1a–c). In … Meer weergeven For experimentally determining the thermoelectric properties of the MTJs, we generate a temperature gradient across the barrier and record the Seebeck voltages for the two magnetic configurations … Meer weergeven The layer stacks for the Co2FeAl based MTJs consist of MgO (substrate)/TiN (20)/Co2FeAl (10)/MgO (2)/Co40Fe40B20 (5)/Ta(3)/Ru (3)42 (cf. Supplementary Note 1). In these samples only the TiN layer serves … Meer weergeven The first Heusler compound discussed here is Co2FeSi31. The complete MTJ stack consists of MgO (substrate)/MgO (5)/Cr (5)/Co2FeSi (20)/MgO (2)/Co70Fe30 (5)/Mn83Ir17 (10)/Ru (25), numbers … Meer weergeven
WebLorke T. R. Nielsen J. Seebeck P. Gartner and F. Jahnke "Influence of carrier–carrier and carrier–phonon correlations on optical absorption and gain in quantum-dot systems" Phys. Rev. B vol. 73 pp. 085324-1-085324-10 2006. WebA scannable laser beam is used to generate local thermal gradients in metallic (CoFeAl) or insulating (YFeO) ferromagnetic thin films. We study the resulting local charge and spin currents that arise due to the anomalo…
Web13 jan. 2016 · Magneto-Seebeck effect in RFeAsO ( R rare earth) … · PHYSICAL REVIEW B 90, 134421 (2014) Magneto-Seebeck effect in RFeAsO (R = rare earth) compounds: Probing the magnon drag scenario. Seebeck effect & peltier effect. Efectele Peltier, Seebeck, Thompson [Romana] WebMagnetic property characterization of ferromagnetic thin films using static magneto-optic Kerr effect under the guidance of Dr. Jaivardhan Sinha and Dr. Anjan Barman Silicon Nanoparticles-Polyaniline Nano-Composites (Master's Project) ... The Seebeck coefficient of dedoped PANI and its composite with Si NPs was remarkably high, ...
Web2 sep. 2024 · The results of an investigation on tensile stress dependence of mean Seebeck coefficient in Fe-based amorphous ribbons are presented, constituting a new Seebeck-sigma effect. A measurement test stand, capable of the determination of small variations in thermopower in such materials under stress is described. Exemplary results for … bradford university jobs loginWeb2 dagen geleden · 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 … haberdashery n8Web1 feb. 2024 · It is shown that the porosity leads to the decrease in the magneto-Seebeck coefficient in absolute value as compared with bulk material in both weak and strong fields. In contrast to that, the Nernst coefficient increases linearly with increasing porosity in strong fields while decreases by hyperbolic law in weak fields. bradford university games designWebA meticulous and industrious physicist with 6+ years of experience in modeling, working in strict compliance with R & D leveraging the scientific acumen with transferable skills. A problem-solver, thought-provoking mindset setting up and validating the techniques that fostered 20 cross-functional projects enhancing the competencies of the … bradford university msc public healthWeb8 jun. 2024 · The scanning magneto-optical Kerr effect (MOKE) method was developed by using a soft x-ray free-electron laser to visualize … bradford university msc managementWebWe investigate the influence of the barrier thickness of Co40Fe40B20-based magnetic tunnel junctions (MTJs) on the laser-induced tunnel magneto-Seebeck (TMS) effect. Varying the barrier thickness from 1 to 3 nm, we find a distinct maximum in the TMS effect for a 2.6-nm barrier thickness. bradford university llmWeb17 mei 2024 · The results are compared to the anisotropic magnetoresistance (AMR) and anisotropic magneto-Seebeck (AMS) data of the whole permalloy nanowire. The AMS ratio of the nanowire reveals a sign change at a temperature of 98 K, while the AMR ratio is positive over the complete temperature range. haberdashery newark