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 language | English |
|---|---|
| Pages (from-to) | 322-326 |
| Number of pages | 5 |
| Journal | Applied Surface Science |
| Volume | 222 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - 2004 Jan 30 |
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All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Condensed Matter Physics
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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 journal › Article
TY - JOUR
T1 - Room-temperature ferromagnetism of Mg and Mn co-doped GaN films grown by PEMBE
AU - Jeong, Min Chang
AU - Ham, Moon Ho
AU - Myoung, Jae Min
AU - Noh, Sam Kyu
PY - 2004/1/30
Y1 - 2004/1/30
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0347383771&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0347383771&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2003.09.001
DO - 10.1016/j.apsusc.2003.09.001
M3 - Article
AN - SCOPUS:0347383771
VL - 222
SP - 322
EP - 326
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
IS - 1-4
ER -