Electronic properties of ion-beam-mixed Co/Pt multilayered films

G. S. Chang, S. H. Kim, J. H. Son, S. W. Shin, K. H. Chae, J. Lee, K. Jeong, C. N. Whang, E. Z. Kurmaev, A. Moewes, Y. P. Lee

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Abstract

We carried out ion-beam mixing of ferromagnetic multilayered films and investigated their electronic structures and magnetic properties for the purpose of modifying their magnetic properties. For this study, the [Pt(4.5 nm)/Co(3.5 nm)] × 8 multilayered films were prepared on Si (100) substrates by alternating electron-beam evaporation and were ion-beam mixed with 80 keV Ar+ in a high vacuum. The electronic structures and the magnetic moments of the samples were investigated using X-ray emission spectroscopy and magnetic circular dichroism, respectively. In addition, X-ray diffraction was used to confirm the atomic structures before and after ion-beam mixing. The XRD patterns of the ion-beam-mixed Co/Pt films showed an enhanced tetragonal texture. The experimental results for our samples showed a significant enhancement of the magnetic moment after ion-beam mixing with respect to those of unmixed Co/Pt multilayered and stable equiatomic CoPt alloy films.

Original languageEnglish
Pages (from-to)438-442
Number of pages5
JournalJournal of the Korean Physical Society
Volume37
Issue number4
Publication statusPublished - 2000 Oct 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Chang, G. S., Kim, S. H., Son, J. H., Shin, S. W., Chae, K. H., Lee, J., Jeong, K., Whang, C. N., Kurmaev, E. Z., Moewes, A., & Lee, Y. P. (2000). Electronic properties of ion-beam-mixed Co/Pt multilayered films. Journal of the Korean Physical Society, 37(4), 438-442.