Influence of the substrate choice on the L10 phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films

I. A. Vladymyrskyi; M. V. Karpets; G. L. Katona; D. L. Beke; S. I. Sidorenko; T. Nagata; T. Nabatame; T. Chikyow; F. Ganss; G. Beddies; M. Albrecht; I. M. Makogon

doi:10.1063/1.4891477

Influence of the substrate choice on the L1₀ phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films

I. A. Vladymyrskyi, M. V. Karpets, G. L. Katona, D. L. Beke, S. I. Sidorenko, T. Nagata, T. Nabatame, T. Chikyow, F. Ganss, G. Beddies, M. Albrecht, I. M. Makogon

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

15 Citations (Scopus)

Abstract

Pt/Fe and Pt/Ag/Fe layered films were deposited by DC magnetron sputtering on MgO(001), SrTiO₃(001), and Al₂O₃(0001) single crystalline substrates at room temperature. The films were post-annealed between 623 K and 1173 K for 30 s in flowing N₂ atmosphere. The onset of the L1₀-FePt phase formation in films deposited on MgO(001) and SrTiO₃(001) substrates was observed after annealing between 773 and 873 K, while chemical L1₀ ordering sets in for Pt/Fe bilayers on Al₂O₃(0001) at lower temperatures accompanied by strong (001)-texture. It is concluded that elastic stress, arising from the difference in thermal expansion coefficients between film and substrate, promotes ordering and texture formation.

Original language	English
Article number	044310
Journal	Journal of Applied Physics
Volume	116
Issue number	4
DOIs	https://doi.org/10.1063/1.4891477
Publication status	Published - 2014 Jul 28
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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Vladymyrskyi, I. A., Karpets, M. V., Katona, G. L., Beke, D. L., Sidorenko, S. I., Nagata, T., Nabatame, T., Chikyow, T., Ganss, F., Beddies, G., Albrecht, M., & Makogon, I. M. (2014). Influence of the substrate choice on the L1₀ phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films. Journal of Applied Physics, 116(4), [044310]. https://doi.org/10.1063/1.4891477

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title = "Influence of the substrate choice on the L10 phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films",

abstract = "Pt/Fe and Pt/Ag/Fe layered films were deposited by DC magnetron sputtering on MgO(001), SrTiO3(001), and Al2O3(0001) single crystalline substrates at room temperature. The films were post-annealed between 623 K and 1173 K for 30 s in flowing N2 atmosphere. The onset of the L10-FePt phase formation in films deposited on MgO(001) and SrTiO3(001) substrates was observed after annealing between 773 and 873 K, while chemical L10 ordering sets in for Pt/Fe bilayers on Al2O3(0001) at lower temperatures accompanied by strong (001)-texture. It is concluded that elastic stress, arising from the difference in thermal expansion coefficients between film and substrate, promotes ordering and texture formation.",

author = "Vladymyrskyi, {I. A.} and Karpets, {M. V.} and Katona, {G. L.} and Beke, {D. L.} and Sidorenko, {S. I.} and T. Nagata and T. Nabatame and T. Chikyow and F. Ganss and G. Beddies and M. Albrecht and Makogon, {I. M.}",

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month = jul,

day = "28",

doi = "10.1063/1.4891477",

language = "English",

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journal = "Journal of Applied Physics",

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T1 - Influence of the substrate choice on the L10 phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films

AU - Vladymyrskyi, I. A.

AU - Karpets, M. V.

AU - Katona, G. L.

AU - Beke, D. L.

AU - Sidorenko, S. I.

AU - Nagata, T.

AU - Nabatame, T.

AU - Chikyow, T.

AU - Ganss, F.

AU - Beddies, G.

AU - Albrecht, M.

AU - Makogon, I. M.

PY - 2014/7/28

Y1 - 2014/7/28

N2 - Pt/Fe and Pt/Ag/Fe layered films were deposited by DC magnetron sputtering on MgO(001), SrTiO3(001), and Al2O3(0001) single crystalline substrates at room temperature. The films were post-annealed between 623 K and 1173 K for 30 s in flowing N2 atmosphere. The onset of the L10-FePt phase formation in films deposited on MgO(001) and SrTiO3(001) substrates was observed after annealing between 773 and 873 K, while chemical L10 ordering sets in for Pt/Fe bilayers on Al2O3(0001) at lower temperatures accompanied by strong (001)-texture. It is concluded that elastic stress, arising from the difference in thermal expansion coefficients between film and substrate, promotes ordering and texture formation.

AB - Pt/Fe and Pt/Ag/Fe layered films were deposited by DC magnetron sputtering on MgO(001), SrTiO3(001), and Al2O3(0001) single crystalline substrates at room temperature. The films were post-annealed between 623 K and 1173 K for 30 s in flowing N2 atmosphere. The onset of the L10-FePt phase formation in films deposited on MgO(001) and SrTiO3(001) substrates was observed after annealing between 773 and 873 K, while chemical L10 ordering sets in for Pt/Fe bilayers on Al2O3(0001) at lower temperatures accompanied by strong (001)-texture. It is concluded that elastic stress, arising from the difference in thermal expansion coefficients between film and substrate, promotes ordering and texture formation.

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DO - 10.1063/1.4891477

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VL - 116

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JF - Journal of Applied Physics

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Influence of the substrate choice on the L1₀ phase formation of post-annealed Pt/Fe and Pt/Ag/Fe thin films

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