Room-temperature ferromagnetism of Mg and Mn co-doped GaN films grown by PEMBE

Min Chang Jeong, Moon Ho Ham, Jae Min Myoung, Sam Kyu Noh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The magnetic properties of the epitaxial Mg and Mn co-doped GaN films with low Mg and Mn concentrations grown by plasma-enhanced molecular beam epitay (PEMBE) are reported. Surface morphology was smoother as Mn effusion cell temperature increased. Room-temperature ferromagnetic ordering was observed. The saturation magnetization (Ms) of the films increased as Mn effusion cell temperature (TMn) increased. Saturation magnetization change was not observed with the variation of Mg effusion cell temperature, and this supports that Mg incorporation in the films is not related to ferromagnetic ordering in the films. The samples exhibit n-type conductivity with the room-temperature ferromagnetism, and the films' characteristics are determined by Mn flux at fixed growth temperature.

Original languageEnglish
Pages (from-to)322-326
Number of pages5
JournalApplied Surface Science
Volume222
Issue number1-4
DOIs
Publication statusPublished - 2004 Jan 30

Fingerprint

Molecular beams
Ferromagnetism
ferromagnetism
molecular beams
Plasmas
room temperature
Saturation magnetization
Temperature
cells
saturation
magnetization
temperature
Growth temperature
Surface morphology
Magnetic properties
Fluxes
magnetic properties
conductivity

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

Cite this

Jeong, Min Chang ; Ham, Moon Ho ; Myoung, Jae Min ; Noh, Sam Kyu. / Room-temperature ferromagnetism of Mg and Mn co-doped GaN films grown by PEMBE. In: Applied Surface Science. 2004 ; Vol. 222, No. 1-4. pp. 322-326.
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Room-temperature ferromagnetism of Mg and Mn co-doped GaN films grown by PEMBE. / Jeong, Min Chang; Ham, Moon Ho; Myoung, Jae Min; Noh, Sam Kyu.

In: Applied Surface Science, Vol. 222, No. 1-4, 30.01.2004, p. 322-326.

Research output: Contribution to journalArticle

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