Spin states and phase separation in La1-xSrxCoO3 (x=0.15,0.25,0.35) films: Optical, magneto-optical, and magnetotransport studies

Article

关键词: TRANSPORT-PROPERTIES;    MAGNETIC-ANOMALIES;    GLASS BEHAVIOR;    GIANT CHANGE;    TRANSITION;    MAGNETORESISTANCE;    ABSORPTION;    ORDER;    LA0.5SR0.5COO3-DELTA;    LACOO3;   

DOI  :  10.1103/PhysRevB.68.024413

来源: SCIE

【 摘 要 】

Optical absorption and transverse Kerr effect spectra, resistivity, and magnetoresistance of La1-xSrxCoO3 (x = 0.15,0.25,0.35) films have been studied. The temperature dependences of the optical and magneto-optical properties of the films exhibit features which can be attributed to the transition of the Co3+ ions from the low-spin state (S = 0) to the intermediate-spin state (S = 1) and to orbital ordering of the Co3+ ions in the latter state. The evolution of the properties influenced by doping with Sr is interpreted on the basis of the phase separation model.

【 授权许可】

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