Jayaweera, P.V.V.Perera, A.G.U.Senevirathna, M.K.I.Pitigala, P.K.D.D.P.Tennakone, K.2015-11-202015-11-202004Applied Physics Letters, 85(23):p.5754-5756https://dl-ifs.nsf.gov.lk/handle/1/760Article