Laser-induced ultrafast spin current pulses: A thermodynamic approach

A. Fognini; T. U. Michlmayr; A. Vaterlaus; Y. Acremann

doi:10.1088/1361-648X/aa6a76

Laser-induced ultrafast spin current pulses: A thermodynamic approach

A. Fognini, T. U. Michlmayr, A. Vaterlaus, Y. Acremann

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Abstract

The ultrafast demagnetization process allows for the generation of femtosecond spin current pulses. Here, we present a thermodynamic model of the spin current generation process, based on the chemical potential gradients as the driving force for the spin current. We demonstrate that the laser-induced spin current can be estimated by an easy to understand diffusion model.

Original language	English
Article number	214002
Number of pages	7
Journal	Journal of Physics Condensed Matter
Volume	29
Issue number	21
DOIs	https://doi.org/10.1088/1361-648X/aa6a76
Publication status	Published - 2017

Keywords

spin dynamics
spin injection
spintronics
ultrafast transport

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10.1088/1361-648X/aa6a76

Fognini_2017_J._Phys.__Condens._Matter_29_214002Final published version, 1.2 MBLicence: CC BY

Cite this

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abstract = "The ultrafast demagnetization process allows for the generation of femtosecond spin current pulses. Here, we present a thermodynamic model of the spin current generation process, based on the chemical potential gradients as the driving force for the spin current. We demonstrate that the laser-induced spin current can be estimated by an easy to understand diffusion model.",

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AU - Vaterlaus, A.

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AB - The ultrafast demagnetization process allows for the generation of femtosecond spin current pulses. Here, we present a thermodynamic model of the spin current generation process, based on the chemical potential gradients as the driving force for the spin current. We demonstrate that the laser-induced spin current can be estimated by an easy to understand diffusion model.

KW - spin dynamics

KW - spin injection

KW - spintronics

KW - ultrafast transport

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ER -

Laser-induced ultrafast spin current pulses: A thermodynamic approach

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Keywords

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