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Submitted on: 07 August 2013.
Revised on: 08 November 2013.
Accepted on: 26 November 2013.
___________________Applied Physics Reviews---AIP PUBLISHING
Submitted on: 28 May 2016.
Revised on: 21 June 2016.
Accepted on: 29 July 2016.
___________________Applied Physics Reviews---AIP PUBLISHING
Submitted on: 16 November 2017.
Revised on: 12 February 2018.
Accepted on: 21 March 2018.
___________________Applied Physics Reviews---AIP PUBLISHING
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