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

4 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 Hc and a concave-up behavior for Mr 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

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Magnetic properties
Electron microscopy
Multilayers
Annealing
Thin films
Microstructure

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Moon, Hongjae ; Kim, Sumin ; Jung, Hwaebong ; Lee, Hyun Sook ; Lee, Wooyoung. / Layer-number dependence of the magnetic properties of MnBi films. In: Applied Surface Science. 2017 ; Vol. 420. pp. 618-624.
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Layer-number dependence of the magnetic properties of MnBi films. / Moon, Hongjae; Kim, Sumin; Jung, Hwaebong; Lee, Hyun Sook; Lee, Wooyoung.

In: Applied Surface Science, Vol. 420, 31.10.2017, p. 618-624.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Layer-number dependence of the magnetic properties of MnBi films

AU - Moon, Hongjae

AU - Kim, Sumin

AU - Jung, Hwaebong

AU - Lee, Hyun Sook

AU - Lee, Wooyoung

PY - 2017/10/31

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N2 - 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 Hc and a concave-up behavior for Mr 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.

AB - 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 Hc and a concave-up behavior for Mr 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.

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