http://reply.papertrans.cn/3/201/20045/20045-31.png
Submitted on: 06 February 2003.
Revised on: 03 March 2003.
Accepted on: 08 March 2003.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
Submitted on: 02 December 2014.
Revised on: 30 December 2014.
Accepted on: 11 January 2015.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
http://reply.papertrans.cn/3/201/20045/20045-34.png
http://reply.papertrans.cn/3/201/20045/20045-35.png
http://reply.papertrans.cn/3/201/20045/20045-36.png