Study of ferromagnetism in Mn-doped ZnO whisker arrays

[摘要] Vertically aligned Mnâ€�?�ZnO whiskers were grown on sapphire substrate by a thermal chemical vapour deposition method. X-ray diffraction measurements indicate that samples are high-quality single crystals and ð‘�?-axis oriented. Raman and XPS analyses revealed that Mn was incorporated into the ZnO lattice. Room temperature ð‘�??_c ferromagnetism was observed. These Mnâ€�?�ZnO whiskers may find their potential applications in spintronic field.

[学科分类] 材料工程

[关键词] ZnO;diluted magnetic semiconductors;chemical thermal deposition;spintronic;whisker.