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Submitted on: 09 March 2015.
Revised on: 05 May 2015.
Accepted on: 07 June 2015.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING
Submitted on: 06 February 2004.
Revised on: 08 March 2004.
Accepted on: 29 April 2004.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING
Submitted on: 14 September 2004.
Revised on: 20 November 2004.
Accepted on: 07 December 2004.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING
Submitted on: 09 June 2024.
Revised on: 22 July 2024.
Accepted on: 04 August 2024.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING
Submitted on: 26 December 2006.
Revised on: 01 February 2007.
Accepted on: 05 March 2007.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING
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Submitted on: 12 August 2013.
Revised on: 28 November 2013.
Accepted on: 28 December 2013.
___________________APPLIED PHYSICS LETTERS---AIP PUBLISHING