Magnetic and submillimeter spectroscopy study of phase transitions in La1-xSrxMnO3 perovskites: T-x phase diagram

Temperature dependence of magnetization, AC magnetic susceptibility, resist ance and submillimeter dielectric permittivity and dynamic conductivity wer e studied in colossal magnetoresistance perovskites La1-xSrxMnO3, which exh ibit a lot of anomalies identified with various magnetic and structural pha se transitions. As a result, an overall phase T-x diagram was obtained at t emperatures up to 1050 K and 0 less than or equal to x less than or equal t o 0.45. (C) 1999 Elsevier Science B.V. All rights reserved.