The critical size between single domain and multidomain in L1 0-FePt particles

N. Kikuchi, S. Okamoto, O. Kitakami

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The critical diameter between single domain and multidomain in single crystal L 10 -FePt particles has been studied. The particles are fabricated by depositing FePt on MgO(100) at 1173 K and the diameter was ranged from a few to over a hundred nanometers by changing nominal deposition thickness in the range of 2-10 nm. Initial anomalous Hall effect (AHE) curves were measured for as-deposited state and demagnetized state with in-plane field. The critical diameter for single domain obtained by analyzing initial curves coincides for both initial states and dc ∼55 nm for nominal thickness of 10 nm.

Original languageEnglish
Article number07D511
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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