Demagnetizing fields in all-optical switching. (14th December 2017)

• Record Type: Journal Article
• Authors: Hoveyda, F; Hohenstein, E; Judge, R; Smadici, S
• Is Part Of: Journal of physics. Volume 30:Number 3(2018)
• Publication Date: 2017-12-14
• Subjects: all-optical switching -- ultrafast -- magnetism; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa9e39
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: A model of demagnetizing fields and micromagnetic simulations are applied to examine the evolution of a demagnetized cylinder. In addition to three expected final magnetic structures, a fourth switched state is obtained over a range of magnetic energy densities. The switched state is absent when demagnetizing fields are neglected. The connection to all-optical switching of materials with perpendicular magnetic anisotropy is discussed.