Particulate structure of L 10 ordered ultrathin FePt films for perpendicular recording

A. Perumal; Y. K. Takahashi; T. O. Seki; K. Hono

doi:10.1063/1.2830708

Particulate structure of L 10 ordered ultrathin FePt films for perpendicular recording

A. Perumal^*, Y. K. Takahashi, T. O. Seki, K. Hono

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

76 Citations (Scopus)

Abstract

We report the investigation of microstructure and magnetic properties of ultrathin FePt (1-10 nm) films grown on oxidized Si substrates with a 10 nm MgO(100) intermediate layer. The isolated FePt particles with high degree of L 10 ordering and large magnetocrystalline anisotropy could be fabricated with a thickness of less than 5 nm. Perpendicular coercivity of isolated FePt particles is controllable between 15 and 25 kOe. These results are promising and highly desirable for magnetic recording applications.

Original language	English
Article number	132508
Journal	Applied Physics Letters
Volume	92
Issue number	13
DOIs	https://doi.org/10.1063/1.2830708
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2830708

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title = "Particulate structure of L 10 ordered ultrathin FePt films for perpendicular recording",

abstract = "We report the investigation of microstructure and magnetic properties of ultrathin FePt (1-10 nm) films grown on oxidized Si substrates with a 10 nm MgO(100) intermediate layer. The isolated FePt particles with high degree of L 10 ordering and large magnetocrystalline anisotropy could be fabricated with a thickness of less than 5 nm. Perpendicular coercivity of isolated FePt particles is controllable between 15 and 25 kOe. These results are promising and highly desirable for magnetic recording applications.",

author = "A. Perumal and Takahashi, {Y. K.} and Seki, {T. O.} and K. Hono",

note = "Funding Information: One of the authors (A.P.) acknowledges financial support from the Japan Society for the Promotion of Science (JSPS) in the form of JSPS postdoctoral fellowship. This work was in part supported by the Ministry of Education, Science, Sports and Culture, Japan, Grant-in-Aid for Scientific Research (B) 198574, 2007. This work was in part supported by World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitronics, MENT, Japan.",

year = "2008",

doi = "10.1063/1.2830708",

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journal = "Applied Physics Letters",

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T1 - Particulate structure of L 10 ordered ultrathin FePt films for perpendicular recording

AU - Perumal, A.

AU - Takahashi, Y. K.

AU - Seki, T. O.

AU - Hono, K.

N1 - Funding Information: One of the authors (A.P.) acknowledges financial support from the Japan Society for the Promotion of Science (JSPS) in the form of JSPS postdoctoral fellowship. This work was in part supported by the Ministry of Education, Science, Sports and Culture, Japan, Grant-in-Aid for Scientific Research (B) 198574, 2007. This work was in part supported by World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitronics, MENT, Japan.

PY - 2008

Y1 - 2008

N2 - We report the investigation of microstructure and magnetic properties of ultrathin FePt (1-10 nm) films grown on oxidized Si substrates with a 10 nm MgO(100) intermediate layer. The isolated FePt particles with high degree of L 10 ordering and large magnetocrystalline anisotropy could be fabricated with a thickness of less than 5 nm. Perpendicular coercivity of isolated FePt particles is controllable between 15 and 25 kOe. These results are promising and highly desirable for magnetic recording applications.

AB - We report the investigation of microstructure and magnetic properties of ultrathin FePt (1-10 nm) films grown on oxidized Si substrates with a 10 nm MgO(100) intermediate layer. The isolated FePt particles with high degree of L 10 ordering and large magnetocrystalline anisotropy could be fabricated with a thickness of less than 5 nm. Perpendicular coercivity of isolated FePt particles is controllable between 15 and 25 kOe. These results are promising and highly desirable for magnetic recording applications.

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Particulate structure of L 10 ordered ultrathin FePt films for perpendicular recording

Abstract

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