Submitted on: 22 October 2000.
Revised on: 22 December 2000.
Accepted on: 04 February 2001.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 30 January 2017.
Revised on: 20 March 2017.
Accepted on: 17 May 2017.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 04 February 2008.
Revised on: 27 March 2008.
Accepted on: 26 May 2008.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 20 August 2014.
Revised on: 07 November 2014.
Accepted on: 20 November 2014.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
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Submitted on: 11 July 2017.
Revised on: 17 August 2017.
Accepted on: 11 September 2017.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 30 August 2011.
Revised on: 29 November 2011.
Accepted on: 20 December 2011.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 19 January 2004.
Revised on: 12 March 2004.
Accepted on: 05 May 2004.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 29 September 2024.
Revised on: 27 November 2024.
Accepted on: 24 January 2025.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS
Submitted on: 19 September 2021.
Revised on: 28 November 2021.
Accepted on: 16 December 2021.
___________________INDIAN JOURNAL OF PURE & APPLIED PHYSICS