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 journalArticle

1 Citation (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 languageEnglish
Article number051506
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume32
Issue number5
DOIs
Publication statusPublished - 2014 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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