標題: | Heteroepitaxial growth of sixfold symmetric osmium on Si (111) and Si (100) |
作者: | Peng, Tai-Yen Lo, C. K. Yao, Y. D. Chen, San-Yuan 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 19-三月-2007 |
摘要: | Growing sixfold symmetric osmium (Os) epitaxial films with suitable buffer layers was developed. Using a Cu buffer layer, the lattice mismatch between Os (0002) and Si (100) was significantly reduced from > 30% to similar to 7% to grow Os films with twin relationships and weak sixfold symmetries. On the other hand, the Cu/Au buffer layer was selected to form a fcc (111) surface mesh on H-Si (111)-1x1, and therefore sixfold symmetric Os films were grown due to the lower lattice mismatch. Such growth properties may be applied in the high density magnetic random access memory manufacturing processes to connect the magnetic tunnel junction growth and Cu metal line directly. (c) 2007 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.2711658 http://hdl.handle.net/11536/11016 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.2711658 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 90 |
Issue: | 12 |
結束頁: | |
顯示於類別: | 期刊論文 |