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High Temperature Magnetic Properties of Indirect Exchange Spring FePtM(Cu,C)Fe Trilayer Thin Films
Joint Authors
Gayen, Anabil
Biswas, Barnali
Singh, Akhilesh Kumar
Saravanan, Padmanapan
Perumal, A.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-18
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We report the investigation of temperature dependent magnetic properties of FePt and FePt(30)/M(Cu,C)/Fe(5) trilayer thin films prepared by using magnetron sputtering technique at ambient temperature and postannealed at different temperatures.
L10 ordering, hard magnetic properties, and thermal stability of FePt films are improved with increasing postannealing temperature.
In FePt/M/Fe trilayer, the formation of interlayer exchange coupling between magnetic layers depends on interlayer materials and interface morphology.
In FePt/C/Fe trilayer, when the C interlayer thickness was about 0.5 nm, a strong interlayer exchange coupling between hard and soft layers was achieved, and saturation magnetization was enhanced considerably after using interlayer exchange coupling with Fe.
In addition, incoherent magnetization reversal process observed in FePt/Fe films changes into coherent switching process in FePt/C/Fe films giving rise to a single hysteresis loop.
High temperature magnetic studies up to 573 K reveal that the effective reduction in the coercivity decreases largely from 34 Oe/K for FePt/Fe film to 13 Oe/K for FePt/C(0.5)/Fe film demonstrating that the interlayer exchange coupling seems to be a promising approach to improve the stability of hard magnetic properties at high temperatures, which is suitable for high-performance magnets and thermally assisted magnetic recording media.
American Psychological Association (APA)
Gayen, Anabil& Biswas, Barnali& Singh, Akhilesh Kumar& Saravanan, Padmanapan& Perumal, A.. 2013. High Temperature Magnetic Properties of Indirect Exchange Spring FePtM(Cu,C)Fe Trilayer Thin Films. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1008122
Modern Language Association (MLA)
Gayen, Anabil…[et al.]. High Temperature Magnetic Properties of Indirect Exchange Spring FePtM(Cu,C)Fe Trilayer Thin Films. Journal of Nanomaterials No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1008122
American Medical Association (AMA)
Gayen, Anabil& Biswas, Barnali& Singh, Akhilesh Kumar& Saravanan, Padmanapan& Perumal, A.. High Temperature Magnetic Properties of Indirect Exchange Spring FePtM(Cu,C)Fe Trilayer Thin Films. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1008122
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1008122