Luminescence, electrical and magnetic studies of Mn2+:Li2O−LiF−B2O3−CdO glasses

Abstract

The present paper summarizes the results concerning the luminescence (excitation and emission), ac-conductivity and magnetic properties of Mn2+(0.5mol%):30Li2O−20LiF−45.5B2O3−4CdO (LFBCd) glasses using a melt quenching technique. The excitation spectrum of Mn2+:LFBCd glass has shown two bands at 363 nm (6A1g(S)→4T2g(D)) and the other at 415 nm (6A1g(S)→4A1g(G),4Eg(G)). With an excitation peak (λexci) at 415 nm, a broad emission band is observed in the orange-red region at 608 nm(4T1g(G)→6A1g(S)). The ac-conductivity of Mn2+:LFBCd glass is measured in the frequency range 1 Hz to 1 MHz at room temperature and it is found to increase with the frequency and its value is calculated to be 2.69 × 10−5 S/cm. Besides this, magnetic behaviors of Mn2+: glasses have also been studied and found that are in paramagnetic nature.