Tailoring the growth of L10-FePt for spintronics applications

Taiebeh Tahmasebi; Seidikkurippu N. Piramanayagam; Rachid Sbiaa; Hang Khume Tan; Randall Law; Sunny Lua; Tow Chong Chong

doi:10.1002/pssr.201105379

Tailoring the growth of L1₀-FePt for spintronics applications

Taiebeh Tahmasebi, Seidikkurippu N. Piramanayagam^*, Rachid Sbiaa, Hang Khume Tan, Randall Law, Sunny Lua, Tow Chong Chong

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

The effect of seed layers on the magnetic and structural properties of FePt thin films was investigated. For the case of Cr(200) seed layer, no ordered L1₀-FePt phase in (001) orientation was observed. The insertion of a thin MgO barrier between the Cr and FePt layers improved the perpendicular magnetization orientation of L1₀-FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L1₀-FePt thin films can be developed on Pd[100] at high substrate temperature with the lattice mismatch of below 1% and therefore low roughness compared to MgO or Cr seed layers. (

Original language	English
Pages (from-to)	426-428
Number of pages	3
Journal	Physica Status Solidi - Rapid Research Letters
Volume	5
Issue number	12
DOIs	https://doi.org/10.1002/pssr.201105379
Publication status	Published - Dec 2011
Externally published	Yes

Keywords

Crystallography
High anisotropy constant
L1-FePt
Perpendicular magnetic anisotropy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1002/pssr.201105379

Cite this

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abstract = "The effect of seed layers on the magnetic and structural properties of FePt thin films was investigated. For the case of Cr(200) seed layer, no ordered L10-FePt phase in (001) orientation was observed. The insertion of a thin MgO barrier between the Cr and FePt layers improved the perpendicular magnetization orientation of L10-FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L10-FePt thin films can be developed on Pd[100] at high substrate temperature with the lattice mismatch of below 1% and therefore low roughness compared to MgO or Cr seed layers. (",

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AU - Tahmasebi, Taiebeh

AU - Piramanayagam, Seidikkurippu N.

AU - Sbiaa, Rachid

AU - Tan, Hang Khume

AU - Law, Randall

AU - Lua, Sunny

AU - Chong, Tow Chong

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N2 - The effect of seed layers on the magnetic and structural properties of FePt thin films was investigated. For the case of Cr(200) seed layer, no ordered L10-FePt phase in (001) orientation was observed. The insertion of a thin MgO barrier between the Cr and FePt layers improved the perpendicular magnetization orientation of L10-FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L10-FePt thin films can be developed on Pd[100] at high substrate temperature with the lattice mismatch of below 1% and therefore low roughness compared to MgO or Cr seed layers. (

AB - The effect of seed layers on the magnetic and structural properties of FePt thin films was investigated. For the case of Cr(200) seed layer, no ordered L10-FePt phase in (001) orientation was observed. The insertion of a thin MgO barrier between the Cr and FePt layers improved the perpendicular magnetization orientation of L10-FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L10-FePt thin films can be developed on Pd[100] at high substrate temperature with the lattice mismatch of below 1% and therefore low roughness compared to MgO or Cr seed layers. (

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KW - High anisotropy constant

KW - L1-FePt

KW - Perpendicular magnetic anisotropy

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