Tuning the metal-insulator transition in manganite films through surface exchange coupling with magnetic nanodots

T. Z. Ward, Z. Gai, X. Y. Xu, H. W. Guo, L. F. Yin, J. Shen

    Research output: Contribution to journalArticlepeer-review

    27 Scopus citations

    Abstract

    In strongly correlated electronic systems, the global transport behavior depends sensitively on spin ordering. We show that spin ordering in manganites can be controlled by depositing isolated ferromagnetic nanodots at the surface. The exchange field at the interface is tunable with nanodot density and makes it possible to overcome dimensionality and strain effects in frustrated systems to greatly increasing the metal-insulator transition and magnetoresistance. These findings indicate that electronic phase separation can be controlled by the presence of magnetic nanodots.

    Original languageEnglish
    Article number157207
    JournalPhysical Review Letters
    Volume106
    Issue number15
    DOIs
    StatePublished - Apr 14 2011

    Fingerprint

    Dive into the research topics of 'Tuning the metal-insulator transition in manganite films through surface exchange coupling with magnetic nanodots'. Together they form a unique fingerprint.

    Cite this