Journal Name : PHYSICS AND CHEMISTRY OF SOLIDS ISSN No. : 1729-4428 Publisher : Physico-Chemical Institute at the Vasyl Stefanyk Precarpathian National University Advisory board Advisory board Advisory board Dr. Rajendra Shendge Ecaterina Patrascu Flavio de Sao Pedro Filho A. R. Burla College, India Spiru Haret University, Bucharest, Romania Federal University of Rondonia, Brazil Directory of Research Journals Indexing Wesite : http://www.olddrji.lbp.world Mail us at : info@drji.org / ashok.drji@gmail.com