Submitted on: 20 May 2020.
Revised on: 27 June 2020.
Accepted on: 04 August 2020.
___________________Journal of Alloys and Compounds
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Submitted on: 08 March 2000.
Revised on: 09 June 2000.
Accepted on: 31 July 2000.
___________________Journal of Alloys and Compounds