Submitted on: 20 January 2018.
Revised on: 28 February 2018.
Accepted on: 10 March 2018.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Submitted on: 26 May 2002.
Revised on: 03 July 2002.
Accepted on: 28 July 2002.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
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Submitted on: 22 March 2018.
Revised on: 01 April 2018.
Accepted on: 07 April 2018.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
http://reply.papertrans.cn/3/246/24581/24581-26.png
Submitted on: 14 May 2014.
Revised on: 16 June 2014.
Accepted on: 22 June 2014.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
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Submitted on: 11 July 2006.
Revised on: 10 August 2006.
Accepted on: 30 August 2006.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES