Effect of Mn concentration and growth temperature on nanostructures and magnetic properties of Ge1-xMnx grown on Si

Yong Wang, Ya Wang, Faxian Xiu, Hongyi Xu, De Li, Xufeng Kou, Kang L. Wang, Ajey P. Jacob, Jin Zou

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

The nanostructures and magnetic properties of Ge1-xMn x thin films grown on Si substrates by molecular beam epitaxy, with different nominal Mn concentrations (1-4%) and different growth temperatures, have been systematically investigated by transmission electron microscopy and superconducting quantum interference device. It was discovered that when Ge 1-xMnx thin films were grown at 70 °C, with increase in Mn concentration, Mn-rich tadpole shaped clusters started to nucleate at 1% Mn and become dominate in the entire film at 4% Mn. While for the thin films grown at 150 °C, tadpoles was firstly seen in the film with 1% Mn and subsequently Mn-rich secondary precipitates became dominant. The magnetic properties show specific features, which are mainly related to the nature and amount of Mn-rich clusters/precipitates within these thin films.

原文English
頁(從 - 到)3034-3039
頁數6
期刊Journal of Crystal Growth
312
發行號20
DOIs
出版狀態Published - 2010 10月 1

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 無機化學
  • 材料化學

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