FePt fct-(001) texture prepared at lower temperature for perpendicular recording

Yingfan Xu; Jingsheng Chen; Daoyang Dai; J. P. Wang

doi:10.1109/INTMAG.2002.1001157

FePt fct-(001) texture prepared at lower temperature for perpendicular recording

Yingfan Xu, Jingsheng Chen, Daoyang Dai, J. P. Wang

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

FePt thin films with L1₀ ordered structure (fct-phase) attract high attentions due to their possible use as ultrahigh density recording media. For perpendicular recording, it is essential to have films with the fct-[001] orientating perpendicular to the film plane. Previous study by the authors (IEEE Trans. Magn. vol.37, p.1491-3 (2001)) indicated that addition of Ru to Cr favors to realize Cr[200] orientation. In this paper, an CrRu underlayer with [200] texture is used to control the FePt orientation. It is expected that the FePt fct-[001] texture can be epitaxially grown with crystallographic relationship Cr[200][110]//FePt[001][100]. On the other hand, the expansion strain along the FePt a-axis in the interface may be preferred to transform the fcc to the fct phase. We change the Ru content in Cr to vary the lattice mismatch between the FePt layer and underlayer, in expectation of strain-induced preferred phase transformation and lowering the ordering temperature.

Original language	English (US)
Title of host publication	INTERMAG Europe 2002 - IEEE International Magnetics Conference
Editors	J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	0780373650, 9780780373655
DOIs	https://doi.org/10.1109/INTMAG.2002.1001157
State	Published - 2002
Event	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands Duration: Apr 28 2002 → May 2 2002

Publication series

Name	INTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/Territory	Netherlands
City	Amsterdam
Period	4/28/02 → 5/2/02

Bibliographical note

Publisher Copyright:
©2002 IEEE.

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10.1109/INTMAG.2002.1001157

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Xu, Y., Chen, J., Dai, D., & Wang, J. P. (2002). FePt fct-(001) texture prepared at lower temperature for perpendicular recording. In J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, J. De Boeck, & R. Wood (Eds.), INTERMAG Europe 2002 - IEEE International Magnetics Conference Article 1001157 (INTERMAG Europe 2002 - IEEE International Magnetics Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1001157

FePt fct-(001) texture prepared at lower temperature for perpendicular recording. / Xu, Yingfan; Chen, Jingsheng; Dai, Daoyang et al.
INTERMAG Europe 2002 - IEEE International Magnetics Conference. ed. / J. Fidler; B. Hillebrands; C. Ross; D. Weller; L. Folks; E. Hill; M. Vazquez Villalabeitia; J. A. Bain; Jo De Boeck; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. 1001157 (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Xu, Y, Chen, J, Dai, D & Wang, JP 2002, FePt fct-(001) texture prepared at lower temperature for perpendicular recording. in J Fidler, B Hillebrands, C Ross, D Weller, L Folks, E Hill, M Vazquez Villalabeitia, JA Bain, J De Boeck & R Wood (eds), INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1001157, INTERMAG Europe 2002 - IEEE International Magnetics Conference, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 4/28/02. https://doi.org/10.1109/INTMAG.2002.1001157

Xu Y, Chen J, Dai D, Wang JP. FePt fct-(001) texture prepared at lower temperature for perpendicular recording. In Fidler J, Hillebrands B, Ross C, Weller D, Folks L, Hill E, Vazquez Villalabeitia M, Bain JA, De Boeck J, Wood R, editors, INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc. 2002. 1001157. (INTERMAG Europe 2002 - IEEE International Magnetics Conference). doi: 10.1109/INTMAG.2002.1001157

Xu, Yingfan ; Chen, Jingsheng ; Dai, Daoyang et al. / FePt fct-(001) texture prepared at lower temperature for perpendicular recording. INTERMAG Europe 2002 - IEEE International Magnetics Conference. editor / J. Fidler ; B. Hillebrands ; C. Ross ; D. Weller ; L. Folks ; E. Hill ; M. Vazquez Villalabeitia ; J. A. Bain ; Jo De Boeck ; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

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title = "FePt fct-(001) texture prepared at lower temperature for perpendicular recording",

abstract = "FePt thin films with L10 ordered structure (fct-phase) attract high attentions due to their possible use as ultrahigh density recording media. For perpendicular recording, it is essential to have films with the fct-[001] orientating perpendicular to the film plane. Previous study by the authors (IEEE Trans. Magn. vol.37, p.1491-3 (2001)) indicated that addition of Ru to Cr favors to realize Cr[200] orientation. In this paper, an CrRu underlayer with [200] texture is used to control the FePt orientation. It is expected that the FePt fct-[001] texture can be epitaxially grown with crystallographic relationship Cr[200][110]//FePt[001][100]. On the other hand, the expansion strain along the FePt a-axis in the interface may be preferred to transform the fcc to the fct phase. We change the Ru content in Cr to vary the lattice mismatch between the FePt layer and underlayer, in expectation of strain-induced preferred phase transformation and lowering the ordering temperature.",

author = "Yingfan Xu and Jingsheng Chen and Daoyang Dai and Wang, {J. P.}",

note = "Publisher Copyright: {\textcopyright}2002 IEEE.; 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 ; Conference date: 28-04-2002 Through 02-05-2002",

year = "2002",

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language = "English (US)",

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T1 - FePt fct-(001) texture prepared at lower temperature for perpendicular recording

AU - Xu, Yingfan

AU - Chen, Jingsheng

AU - Dai, Daoyang

AU - Wang, J. P.

PY - 2002

Y1 - 2002

N2 - FePt thin films with L10 ordered structure (fct-phase) attract high attentions due to their possible use as ultrahigh density recording media. For perpendicular recording, it is essential to have films with the fct-[001] orientating perpendicular to the film plane. Previous study by the authors (IEEE Trans. Magn. vol.37, p.1491-3 (2001)) indicated that addition of Ru to Cr favors to realize Cr[200] orientation. In this paper, an CrRu underlayer with [200] texture is used to control the FePt orientation. It is expected that the FePt fct-[001] texture can be epitaxially grown with crystallographic relationship Cr[200][110]//FePt[001][100]. On the other hand, the expansion strain along the FePt a-axis in the interface may be preferred to transform the fcc to the fct phase. We change the Ru content in Cr to vary the lattice mismatch between the FePt layer and underlayer, in expectation of strain-induced preferred phase transformation and lowering the ordering temperature.

AB - FePt thin films with L10 ordered structure (fct-phase) attract high attentions due to their possible use as ultrahigh density recording media. For perpendicular recording, it is essential to have films with the fct-[001] orientating perpendicular to the film plane. Previous study by the authors (IEEE Trans. Magn. vol.37, p.1491-3 (2001)) indicated that addition of Ru to Cr favors to realize Cr[200] orientation. In this paper, an CrRu underlayer with [200] texture is used to control the FePt orientation. It is expected that the FePt fct-[001] texture can be epitaxially grown with crystallographic relationship Cr[200][110]//FePt[001][100]. On the other hand, the expansion strain along the FePt a-axis in the interface may be preferred to transform the fcc to the fct phase. We change the Ru content in Cr to vary the lattice mismatch between the FePt layer and underlayer, in expectation of strain-induced preferred phase transformation and lowering the ordering temperature.

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BT - INTERMAG Europe 2002 - IEEE International Magnetics Conference

A2 - Fidler, J.

A2 - Hillebrands, B.

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PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002

Y2 - 28 April 2002 through 2 May 2002

ER -

FePt fct-(001) texture prepared at lower temperature for perpendicular recording

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