MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

K. Aikoh, A. Tohki, T. Matsui, A. Iwase, T. Satoh, K. Takano, M. Kohka, Y. Saitoh, T. Kamiya, T. Ohkochi, M. Kotsugi, T. Nakamura, T. Kinoshita

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

FeRh thin films were irradiated with a 10 MeV iodine ion microbeam to produce micrometre-scale ferromagnetic microstructures by modifying the local magnetic character from antiferromagnetism to ferromagnetism using ion-microbeam irradiation. Two-dimensional magnetic dot arrays of dimensions ∼2 μm × 4 μm as well as 10 μm × 10 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy (MFM). The results of photoemission electron microscopy (PEEM) combined with X-ray magnetic circular dichroism reveal that the easy axis of the magnetization of the ion-beam-irradiated ferromagnetism in the FeRh thin films lies in the film planes along the 001 direction of the MgO substrates.

Original languageEnglish
Pages (from-to)223-226
Number of pages4
JournalJournal of Synchrotron Radiation
Volume19
Issue number2
DOIs
Publication statusPublished - 2012 Mar
Externally publishedYes

Keywords

  • MFM
  • XMCD-PEEM
  • energetic ion-beam irradiation
  • first-order magnetic phase transition
  • magnetic patterning

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint

Dive into the research topics of 'MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films'. Together they form a unique fingerprint.

Cite this