Hydrostatic-pressure-induced changes of magnetic anisotropy in (Ga, Mn)As thin films. (7th February 2017)

• Record Type: Journal Article
• Authors: Gryglas-Borysiewicz, Marta; Juszyński, Piotr; Kwiatkowski, Adam; Przybytek, Jacek; Sadowski, Janusz; Sawicki, Maciej; Tokarczyk, Mateusz; Kowalski, Grzegorz; Dietl, Tomasz; Wasik, Dariusz
• Is Part Of: Journal of physics. Volume 29:Number 11(2017)
• Publication Date: 2017-02-07
• Subjects: magnetic anisotropy -- (Ga -- Mn)As -- thin films -- hydrostatic pressure -- spintronics; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa546d
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: The impact of hydrostatic pressure on magnetic anisotropy energies in (Ga, Mn)As thin films with in-plane and out-of-plane magnetic easy axes predefined by epitaxial strain was investigated. In both types of sample we observed a clear increase in both in-plane and out-of-plane anisotropy parameters with pressure. The out-of-plane anisotropy constant is well reproduced by the mean-field p–d Zener model; however, the changes in uniaxial anisotropy are much larger than expected in the Mn–Mn dimer scenario.