Laser-induced ultrafast spin current pulses: a thermodynamic approach. (24th April 2017)

• Record Type: Journal Article
• Authors: Fognini, A; Michlmayr, T U; Vaterlaus, A; Acremann, Y
• Is Part Of: Journal of physics. Volume 29:Number 21(2017)
• Publication Date: 2017-04-24
• Subjects: ultrafast transport -- spin dynamics -- spin injection -- spintronics; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa6a76
• Languages: English
• ISSNs: 0953-8984

Abstract

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.