Layer-number dependence of the magnetic properties of MnBi films

Hongjae Moon, Sumin Kim, Hwaebong Jung, Hyun Sook Lee, Wooyoung Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We present the effect of multilayer deposition on the magnetic properties of MnBi thin films. The multilayered MnBi films were fabricated with alternating deposition of Bi and Mn with N (N = 2–10) layers (L), followed by in situ thermal annealing. As N increases, the even-layered and odd-layered films show a similar layer-number-dependence of the magnetic properties, such as an increasing behavior for H c and a concave-up behavior for M r and (BH) max . Higher magnetic properties were obtained at 9L and 10L. According to the electron microscopy analyses, different morphologies and elemental distributions were observed at different N (e.g., smooth-surfaced MnBi film with Bi islands at 2L and uneven-surfaced MnBi film at 10L). The different distributions of microstructure and chemical components are associated with the layer-dependent magnetic properties of the MnBi films.

Original languageEnglish
Pages (from-to)618-624
Number of pages7
JournalApplied Surface Science
Volume420
DOIs
Publication statusPublished - 2017 Oct 31

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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