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 journalArticlepeer-review

7 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

Bibliographical note

Funding Information:
This work was supported by the Priority Research Centers Program (grant number 2009-0093823) through the National Research Foundation of Korea (NRF). H-S Lee thanks to the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2015R1C1A2A01055702). The authors thank Cheol-Hwee Shim for his technical support and expert operation of the Tecnai TEM and Hye-Young Hyun for TEM sampling using the Nova 600 FIB at the Advanced Analysis Center at the Korea Institute of Science and Technology.

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Layer-number dependence of the magnetic properties of MnBi films'. Together they form a unique fingerprint.

Cite this