$T_c$ Enhancement in Electron-Doped Cuprate Heterostructures

ORAL

Abstract

Multilayer thin films of La$_{2-x}$Ce$_x$CuO$_4$ (LCCO) and Pr$_{2-x}$Ce$_x$CuO$_4$ (PCCO) were fabricated as superlattices of different dopings. Pairing over-doped and under-doped (or un-doped) layers is found to increase $T_c$ significantly above that of the single-phase films corresponding to the under- or over-doped layers. We report transport measurements on these mulitlayer films and discuss possible mechanisms for the $T_c$ enhancement. This work was supported by the US-Israel Binational Science Foundation Grant \#2006385 and the Center for Nanophysics and Advanced Materials (CNAM).

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Authors

  • Paul Bach

    • Center for Nanophysics and Advanced Materials, University of Maryland
    • Center for Nanophysics \& Advanced Materials and Department of Physics, University of Maryland, College Park, MD 20742, USA

  • K. Jin

    • Center for Nanophysics and Advanced Materials, University of Maryland

  • X.H. Zhang

    • Center for Nanophysics and Advanced Materials, University of Maryland

  • R.L. Greene

    • University of Maryland

  • U. Grupel

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University

  • E. Zohar

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University

  • E. Diamant

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University

  • Y. Dagan

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University

  • S. Smadici

    • Frederick Seitz Materials Research Laboratory, University of Illinois

  • P. Abbamonte

    • Frederick Seitz Materials Research Laboratory, University of Illinois