Magneto-optical and structural properties of nanocrystalline MnBi-based films

D. J. Sellmyer, R. D. Kirby, J. Chen, K. W. Wierman, J. X. Shen, Y. Liu, B. W. Robertson, S. S. Jaswal

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

In this paper we discuss recent research on MnBi and MnBiX films where X denotes alloying elements whose purpose is to modify the properties of the parent compound in beneficial ways. While MnBi has a large Kerr response, large uniaxial anisotropy and can be grown in thin-film form with its easy axis normal to the film plane, it also has large grain sizes and a high-temperature structural instability near the Curie point, both of which are detrimental to magneto-optic recording applications. We report systematic studies of Al doping which show that it does not enhance the Kerr response nor eliminate the high temperature structural instability. Al does, however, promote small grain sizes which are required for a low noise magneto-optical recording medium. Preliminary results are reported on sputtered samples with a number of other dopants, and some of these have promising properties.

Original languageEnglish (US)
Pages (from-to)1549-1555
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume56
Issue number11
DOIs
StatePublished - Nov 1995

Keywords

  • A. intermetallic compounds
  • A. nanostructures
  • D. electronic structure
  • D. magnetic properties
  • D. optical properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Magneto-optical and structural properties of nanocrystalline MnBi-based films'. Together they form a unique fingerprint.

  • Cite this

    Sellmyer, D. J., Kirby, R. D., Chen, J., Wierman, K. W., Shen, J. X., Liu, Y., Robertson, B. W., & Jaswal, S. S. (1995). Magneto-optical and structural properties of nanocrystalline MnBi-based films. Journal of Physics and Chemistry of Solids, 56(11), 1549-1555. https://doi.org/10.1016/0022-3697(95)00127-1