Evolving Magnetization Dynamics in Mn3-xGa

Summary, in English

Magnetic materials with high magnetic coercivity (Hc), magnetic anisotropy (Ku) and low Gilbert damping (α) are of great importance for future spintronics devices. For instance, for spin-transfer-torque (STT) memory devices low α and high Ku are desired. Such a combination of material properties includes a built in contradiction since both Ku and α are dependent on the spin-orbit interaction (SO); a high Ku material is expected to have a high α. However, recent experimental investigations of Mn3-xGa, a material exhibiting high Curie temperature (Tc) > 700 K and (out-of-plane) perpendicular anisotropy, have shown that such a contradictorily low α and high Ku material exists.

• Author: J. M. Wikberg; I. Razdolski; A. Kirilyuk; Th. Raising; Janusz Sadowski; M. Ottoson; Y. Wei; P. Svedlindh
• Editor: Jean-Yves Bigot; Wolfgang Hubner; Theo Rasing; Roy Chantrell
• Department/s: MAX IV Laboratory
• Publishing year: 2015
• Language: English
• Pages: 23-25
• Publication/Series: Springer Proceedings in Physics
• Volume: 159
• Links: http://dx.doi.org/10.1007/978-3-319-07743-7_8
• Document type: Conference paper
• Publisher: Springer
• Topic: Condensed Matter Physics
• Conference name: Ultrafast Magnetism Conference
• Conference date: 2013-10-28
• Conference place: Strasbourg, France
• Status: Published
• ISBN/ISSN/Other: ISSN: 0930-8989