Journal ArticleDOI
Low damping constant for Co2FeAl Heusler alloy films and its correlation with density of states
Shigemi Mizukami,D. Watanabe,Mikihiko Oogane,Yasuo Ando,Yoshio Miura,Masafumi Shirai,Terunobu Miyazaki +6 more
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Gilbert damping for epitaxial Co2FeAl Heusler alloy films was investigated by analyzing the data of ferromagnetic resonance measured at the frequency of 2.20 GHz as discussed by the authors.Abstract:
Gilbert damping for the epitaxial Co2FeAl Heusler alloy films was investigated. Gilbert damping constant for the films was evaluated by analyzing the data of ferromagnetic resonance measured at the frequency of 2–20 GHz. Gilbert damping constant for the film without annealing was rather large, while it decreased remarkably with postannealing. Gilbert damping constant for the film annealed at 600 °C was ≃0.001. These behavior of Gilbert damping constant can be well explained by the fact that the density of states calculated from first principles decreases with increasing the degree of B2 order.read more
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Erratum: Basic principles of STT-MRAM cell operation in memory arrays
Alexey Vasilyevitch Khvalkovskiy,Dmytro Apalkov,Steven M. Watts,R Chepulskii,Robert Beach,Adrian E. Ong,X. Tang,A. Driskill-Smith,William H. Butler,P. B. Visscher,D. K. Lottis,Eugene Chen,Vladimir Nikitin,Mohamad Towfik Krounbi +13 more
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Skyrmions in Magnetic Multilayers
TL;DR: In this article, the fundamental topological physics underlying these chiral spin textures, the key factors for materials optimization, and current developments and future challenges are discussed, and a few promising directions that will advance the development of skyrmion based spintronics will be highlighted.
Journal ArticleDOI
Perpendicular magnetization of Co2FeAl full-Heusler alloy films induced by MgO interface
TL;DR: In this paper, the perpendicular magnetization of Co2FeAl (CFA) full-Heusler alloy films was achieved in the structures of CFA/MgO and MgO/CFA with the perpendicular magnetic anisotropy energy density (KU) of 2-3×106
Journal ArticleDOI
Magnetic texture based magnonics
TL;DR: In this paper, the theoretical framework of magnons living on a magnetic texture background, as well as recent experimental progress in the manipulation of magnon via magnetic textures are discussed regarding the potential for applications in information processing schemes based on magnons.
Journal ArticleDOI
Heusler alloys for spintronic devices: review on recent development and future perspectives
Kelvin Elphick,William James Frost,Marjan Samiepour,Takahide Kubota,Koki Takanashi,Hiroaki Sukegawa,Seiji Mitani,Seiji Mitani,Atsufumi Hirohata +8 more
TL;DR: Heusler alloys are theoretically predicted to become half-metals at room temperature (RT) and by employing these ferromagnetic alloy films in a spintronic device, efficient spin injection into a non-magnetic material and large magnetoresistance are also discussed.
References
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Extrinsic contributions to the ferromagnetic resonance response of ultrathin films
Rodrigo Arias,D. L. Mills +1 more
TL;DR: In this paper, the authors developed a theory of the extrinsic contributions to the ferromagnetic resonance linewidth and frequency shift of ultrathin films by two magnon scattering by defects at surfaces and interfaces.
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On the Landau-Lifshitz relaxation in ferromagnetic metals
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