Electronic Phase Separation induced dramatic enhancement of large magnetoresistance in Organic Spin Valves

ORAL

Abstract

Organic spin valves (OSVs) have been studied widely with respect to the long spin relaxation time of the carriers in the organic materials and their synthetic versatility, ease of manufacturing and pliability. Recent advances focused on the spinterface and the multi-functionalities of OSVs. Here we employ LPCMO with high spin polarization and electronic phase separation (EPS) to tune the MR of the OSV, which depends strongly on the pre-set magnetic field, voltage and temperature due to the spin-flip scattering in LPCMO and the interface. An extremely high MR of 438% and the rangeability of 5.9 times are observed. Our findings point an alternative way for multistate of OSVs and controllable room temperature OSVs by using LPCMO with high Tc and electronic phase separation.

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Presenters

  • Wenting Yang

    Fudan University

Authors

  • Wenting Yang

    Fudan University

  • Qian Shi

    Fudan University

  • Tian Miao

    Fudan University

  • Qiang Li

    Fudan University

  • Peng Cai

    Physics Department, Fudan University, Fudan University

  • Hao Liu

    Fudan University

  • Hanxuan Lin

    Fudan University

  • Bai Yu

    Fudan University

  • Yinyan Zhu

    Fudan University

  • Yang Yu

    Fudan University

  • Lina Deng

    Department of Phi\ysics, Fudan University, Fudan University

  • Wenbin Wang

    Fudan University

  • Lifeng Yin

    Fudan University

  • Dali Sun

    North Carolina State University, Department of Physics, North Carolina State University

  • Xiaoguang Zhang

    Department of Physics and Quantum Theory Project, University of Florida, Department of Physics and the Quantum Theory Project, University of Florida, Department of Physics, University of Florida

  • Jian Shen

    Fudan University, Physics Department, Fudan University