Controlled doping of single crystalline diluted magnetic semiconductor Ga1-xMnxN nanowires

Yun Ki Byeun, Kyong Sop Han, Heon Jin Choi, Sung Churl Choi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report on the optical and magnetic properties of single crystalline dilute magnetic semiconductor Ga1-xMnxN nanowires. The nanowires were fabricated by chemical vapor transport process, and had diameters of <100 nm and length of several μm. Controlled doping of manganese in the range of x = 0.01-0.08 was successfully achieved by varying the processing conditions. X-ray diffraction and transmission electron microscopy observation showed that the nanowires are single crystalline without any secondary phases. Photoluminescence emissions of all the doped nanowires were red-shifted (2.8 eV) compare to pure gallium nitride nanowires (3.3 eV) at room temperature. Ferromagnetism up to room temperature was observed in GaN1-xMnxN nanowires with x > 0.04.

Original languageEnglish
Pages (from-to)499-502
Number of pages4
JournalMaterials Science and Engineering A
Volume452-453
DOIs
Publication statusPublished - 2007 Apr 15

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this