Submitted on: 09 February 2016.
Revised on: 18 March 2016.
Accepted on: 31 March 2016.
PHYSICS WORLD
Submitted on: 23 August 2015.
Revised on: 28 September 2015.
Accepted on: 03 October 2015.
PHYSICS WORLD---IOP PUBLISHING LTD
Submitted on: 26 August 2021.
Revised on: 14 September 2021.
Accepted on: 08 October 2021.
PHYSICS WORLD
http://reply.papertrans.cn/3/247/24694/24694-14.png
http://reply.papertrans.cn/3/247/24694/24694-15.png
Submitted on: 30 May 2002.
Revised on: 06 June 2002.
Accepted on: 21 June 2002.
PHYSICS WORLD
http://reply.papertrans.cn/3/247/24694/24694-17.png
Submitted on: 17 February 2005.
Revised on: 07 March 2005.
Accepted on: 03 April 2005.
PHYSICS WORLD---IOP PUBLISHING LTD
http://reply.papertrans.cn/3/247/24694/24694-19.png
http://reply.papertrans.cn/3/247/24694/24694-20.png