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Static and dynamic properties of Co2FeAl thin films: Effect of MgO and Ta as capping layers
Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
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2017 (English)In: AIP Conference Proceedings, 2017, Vol. 1832Conference paper, Published paper (Refereed)
Abstract [en]

The influence of MgO and Ta capping layers on the static and dynamic magnetic properties of Co2FeAl (CFA) Heusler alloy thin films has been investigated. It is observed that the CFA film deposited with MgO capping layer is preeminent compared to the uncapped or Ta capped CFA film. In particular, the magnetic inhomogeneity contribution to the ferromagnetic resonance line broadening and damping constant are found to be minimal for the MgO capped CFA thin film i.e., 0.12±0.01 Oe and 0.0074±0.00014, respectively. The saturationmagnetization was found to be 960±25emu/cc.

Place, publisher, year, edition, pages
2017. Vol. 1832
Keyword [en]
Heusler alloy, MgO, Gilbert damping
National Category
Physical Sciences Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-332482DOI: 10.1063/1.4980467OAI: oai:DiVA.org:uu-332482DiVA: diva2:1153193
Conference
DAE Solid State Physics Symposium 2016
Projects
Knut and Alice Wallenberg (KAW) Foundation, Grant No. KAW 2012.0031.
Available from: 2017-10-27 Created: 2017-10-27 Last updated: 2017-11-01

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