Interface controlled electronic variations in correlated heterostructures

Article

关键词: DOPED MANGANITES;    CHARGE;    MAGNETORESISTANCE;    TRANSPORT;   

DOI  :  10.1103/PhysRevB.82.113101

来源: SCIE

【 摘 要 】

An interface modification of (LaCa)MnO3-BaTiO3 superlattices was found to massively influence magnetic and magnetotransport properties. Moreover it determines the crystal structure of the manganite layers, changing it from orthorhombic (Pnma) for the conventional superlattice (cSL), to rhombohedral (R (3) over barc) for the modified one (mSL). While the cSL shows extremely nonlinear ac transport, the mSL is an electrically homogeneous material. The observations go beyond an oversimplified picture of dead interface layers and evidence the importance of electronic correlations at perovskite interfaces.

【 授权许可】

Free