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

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.

Authors:
; ; ; ; ;  [1]
  1. Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8552 (Japan)
Publication Date:
OSTI Identifier:
22318038
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films; Journal Volume: 32; Journal Issue: 5; Other Information: (c) 2014 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM NITRIDES; GRAIN GROWTH; IRON COMPOUNDS; LAYERS; MAGNETIC PROPERTIES; NITROGEN; PLATINUM COMPOUNDS; STRESS RELAXATION; X-RAY DIFFRACTION

Citation Formats

Gao, Tenghua, E-mail: gao.t.ab@m.titech.ac.jp, Zhang, Cong, Sannomiya, Takumi, Muraishi, Shinji, Nakamura, Yoshio, and Shi, Ji. Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures. United States: N. p., 2014. Web. doi:10.1116/1.4891562.
Gao, Tenghua, E-mail: gao.t.ab@m.titech.ac.jp, Zhang, Cong, Sannomiya, Takumi, Muraishi, Shinji, Nakamura, Yoshio, & Shi, Ji. Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures. United States. doi:10.1116/1.4891562.
Gao, Tenghua, E-mail: gao.t.ab@m.titech.ac.jp, Zhang, Cong, Sannomiya, Takumi, Muraishi, Shinji, Nakamura, Yoshio, and Shi, Ji. Mon . "Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures". United States. doi:10.1116/1.4891562.
@article{osti_22318038,
title = {Effect of nitrogen upon structural and magnetic properties of FePt in FePt/AlN multilayer structures},
author = {Gao, Tenghua, E-mail: gao.t.ab@m.titech.ac.jp and Zhang, Cong and Sannomiya, Takumi and Muraishi, Shinji and Nakamura, Yoshio and Shi, Ji},
abstractNote = {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.},
doi = {10.1116/1.4891562},
journal = {Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films},
number = 5,
volume = 32,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}