Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures

Tenghua Gao; Cong Zhang; Takumi Sannomiya; Shinji Muraishi; Yoshio Nakamura; Ji Shi

doi:10.1116/1.4891562

Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures

Tenghua Gao, Cong Zhang, Takumi Sannomiya, Shinji Muraishi, Yoshio Nakamura, Ji Shi

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

2 Citations (Scopus)

Abstract

This paper investigates the effect of the addition of nitrogen in FePt layers for ultrathin FePt/AlN multilayer structures. X-ray diffraction results reveal that a compressive stress relaxation occurs after annealing owing to the release of interstitial nitrogen atoms in the FePt layers. The introduction of nitrogen also induces a large in-plane compressive strain during grain growth not seen in FePt deposited without nitrogen. This strain is considered to decrease the driving force for (111) grain growth and FePt ordering.

Original language	English
Article number	051506
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	32
Issue number	5
DOIs	https://doi.org/10.1116/1.4891562
Publication status	Published - 2014 Sept
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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abstract = "This paper investigates the effect of the addition of nitrogen in FePt layers for ultrathin FePt/AlN multilayer structures. X-ray diffraction results reveal that a compressive stress relaxation occurs after annealing owing to the release of interstitial nitrogen atoms in the FePt layers. The introduction of nitrogen also induces a large in-plane compressive strain during grain growth not seen in FePt deposited without nitrogen. This strain is considered to decrease the driving force for (111) grain growth and FePt ordering.",

author = "Tenghua Gao and Cong Zhang and Takumi Sannomiya and Shinji Muraishi and Yoshio Nakamura and Ji Shi",

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T1 - Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures

AU - Gao, Tenghua

AU - Zhang, Cong

AU - Sannomiya, Takumi

AU - Muraishi, Shinji

AU - Nakamura, Yoshio

AU - Shi, Ji

PY - 2014/9

Y1 - 2014/9

N2 - This paper investigates the effect of the addition of nitrogen in FePt layers for ultrathin FePt/AlN multilayer structures. X-ray diffraction results reveal that a compressive stress relaxation occurs after annealing owing to the release of interstitial nitrogen atoms in the FePt layers. The introduction of nitrogen also induces a large in-plane compressive strain during grain growth not seen in FePt deposited without nitrogen. This strain is considered to decrease the driving force for (111) grain growth and FePt ordering.

AB - This paper investigates the effect of the addition of nitrogen in FePt layers for ultrathin FePt/AlN multilayer structures. X-ray diffraction results reveal that a compressive stress relaxation occurs after annealing owing to the release of interstitial nitrogen atoms in the FePt layers. The introduction of nitrogen also induces a large in-plane compressive strain during grain growth not seen in FePt deposited without nitrogen. This strain is considered to decrease the driving force for (111) grain growth and FePt ordering.

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Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures

Abstract

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