TY - JOUR T1 - Anharmonity of zone-center optical phonons: Raman scattering spectra of GaSe0,5S0,5 layered crystal A1 - Gasanly, N.M. A1 - Aydinli, A. A1 - Kocabas, C. A1 - Ozkan, H. JA - Physica Scripta Y1 - 2002 VL - 65 SP - 534 EP - 538 N1 - upd vol/pg 16-12-02 ER -