Journal ArticleDOI
L10-ordered high coercivity (FePt)Ag–C granular thin films for perpendicular recording
TLDR
In this article, the authors report (FePt)Ag-C granular thin films for potential applications to ultrahigh density perpendicular recording media, that were processed by co-sputtering FePt, Ag, and C targets on MgO underlayer deposited on thermally oxidized Si substrates.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2010-09-01. It has received 189 citations till now. The article focuses on the topics: Coercivity & Grain size.read more
Citations
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Journal ArticleDOI
All-optical control of ferromagnetic thin films and nanostructures
C-H Lambert,C-H Lambert,Stéphane Mangin,Stéphane Mangin,B. S. D. Ch. S. Varaprasad,Yukiko Takahashi,Michel Hehn,Mirko Cinchetti,Gregory Malinowski,Kazuhiro Hono,Yeshaiahu Fainman,Martin Aeschlimann,Eric E. Fullerton +12 more
TL;DR: This work demonstrates optical control of ferromagnetic materials ranging from magnetic thin films to multilayers and even granular films being explored for ultra-high-density magnetic recording, and shows that Optical control of magnetic materials is a much more general phenomenon than previously assumed.
Journal ArticleDOI
L10 FePtX–Y media for heat-assisted magnetic recording
TL;DR: Huang et al. as discussed by the authors optimized media, heads, head-disk-spacing, and read-back channels to extend the areal density to 1.5-5'Tb'in−2.
Journal ArticleDOI
A HAMR Media Technology Roadmap to an Areal Density of 4 Tb/in $^2$
Dieter Weller,Gregory Parker,Oleksandr Mosendz,Eric J. Champion,Barry C. Stipe,Xiaobin Wang,Timothy J. Klemmer,Ganping Ju,Antony Ajan +8 more
TL;DR: In this paper, the authors discuss heat-assisted magnetic recording (HAMR) media requirements and challenges for areal densities (AD) beyond 1 Tb/in2, focusing on granular chemically ordered L10 FePtX-Y-perpendicular media with reduced average grain size.
Journal ArticleDOI
Review Article: FePt heat assisted magnetic recording media
Dieter Weller,Gregory Parker,Oleksandr Mosendz,Andreas Lyberatos,D. Mitin,N. Y. Safonova,Manfred Albrecht +6 more
TL;DR: The structural properties of granular high anisotropy chemically ordered L10 FePtX-Y HAMR media by now are similar to perpendicular CoCrPt-based magnetic recording media.
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
References
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Journal ArticleDOI
Chemical-order-dependent magnetic anisotropy and exchange stiffness constant of FePt (001) epitaxial films
Satoshi Okamoto,N. Kikuchi,Osamu Kitakami,Terunobu Miyazaki,Yutaka Shimada,Kazuaki Fukamichi +5 more
TL;DR: In this paper, the magnetic anisotropy of FePt films has been determined with high accuracy by analyzing the magnetization curves obtained from the Hall voltage measurement, implying that the Curie temperature weakly depends on S.
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Reduction of ordering temperature of an FePt-ordered alloy by addition of Cu
TL;DR: In this article, the authors have found that the addition of Cu to an FePt alloy film is an effective approach for reducing the ordering temperature of FePts and showed that the coercivity of the Cu film is around 5 kOe after annealing at 300 °C, whereas that of Fe Pt shows several hundred Oe.
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Size‐Dependent Chemical and Magnetic Ordering in L10‐FePt Nanoparticles
Chuanbing Rong,Daren Li,Vikas Nandwana,Narayan Poudyal,Yong Ding,Zhong Lin Wang,Hao Zeng,J. P. Liu +7 more
TL;DR: In this paper, the size dependence of the chemical ordering parameter S and selected magnetic properties of the L10-FePt phase has been investigated, including the Curie temperature, Tc, magnetization, etc.
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Perpendicular magnetic anisotropy and magnetic domain structure in sputtered epitaxial FePt (001) L10 films
TL;DR: The magnetic domain structure and magnetization curves of chemically ordered epitaxial FePt (001) films with perpendicular magnetic anisotropy are discussed in this article, where films were dc magnetron sputtered from a Fe50Pt50 alloy target onto Pt seeded MgO (001), at substrate temperatures of 550 °C.
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L–10 ordering and microstructure of FePt thin films with Cu, Ag, and Au additive
C. L. Platt,K. W. Wierman,Erik B. Svedberg,R.J.M. van de Veerdonk,J. K. Howard,Anup G. Roy,David E. Laughlin +6 more
TL;DR: In this article, the influence of Cu, Ag, and Au additives on the L10 ordering, texture, and grain size of FePt thin films has been examined, and it was shown that the addition of at least 20 vol.