http://reply.papertrans.cn/1/1/2/2-21.png
Submitted on: 17 October 1999.
Revised on: 12 February 2000.
Accepted on: 14 March 2000.
___________________2D Materials---IOP PUBLISHING LTD
Submitted on: 11 March 2003.
Revised on: 02 June 2003.
Accepted on: 17 June 2003.
___________________2D Materials---IOP PUBLISHING LTD
Submitted on: 11 April 2002.
Revised on: 30 July 2002.
Accepted on: 22 August 2002.
___________________2D Materials---IOP PUBLISHING LTD
http://reply.papertrans.cn/1/1/2/2-25.png
Submitted on: 25 February 2016.
Revised on: 09 May 2016.
Accepted on: 19 May 2016.
___________________2D Materials---IOP PUBLISHING LTD
http://reply.papertrans.cn/1/1/2/2-27.png
Submitted on: 30 October 1999.
Revised on: 12 February 2000.
Accepted on: 06 March 2000.
___________________2D Materials---IOP PUBLISHING LTD
http://reply.papertrans.cn/1/1/2/2-29.png
Submitted on: 24 September 2009.
Revised on: 02 November 2009.
Accepted on: 12 December 2009.
___________________2D Materials---IOP PUBLISHING LTD