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Room-temperature air-stable spin transport in bathocuproine-based spin valves

Author

Listed:
  • Xiangnan Sun

    (CIC nanoGUNE)

  • Marco Gobbi

    (CIC nanoGUNE
    Present address: Institut de Science et d'Ingénierie Supramoléculaires (I.S.I.S.), Université de Strasbourg 8, allée Gaspard Monge, F-67083 Strasbourg, France)

  • Amilcar Bedoya-Pinto

    (CIC nanoGUNE)

  • Oihana Txoperena

    (CIC nanoGUNE)

  • Federico Golmar

    (CIC nanoGUNE
    I.N.T.I. – CONICET)

  • Roger Llopis

    (CIC nanoGUNE)

  • Andrey Chuvilin

    (CIC nanoGUNE
    IKERBASQUE, Basque Foundation for Science)

  • Fèlix Casanova

    (CIC nanoGUNE
    IKERBASQUE, Basque Foundation for Science)

  • Luis E Hueso

    (CIC nanoGUNE
    IKERBASQUE, Basque Foundation for Science)

Abstract

Organic semiconductors, characterized by weak spin-scattering mechanisms, are attractive materials for those spintronic applications in which the spin information needs to be retained for long times. Prototypical spin-valve devices employing organic interlayers sandwiched between ferromagnetic materials possess a figure of merit (magnetoresistance (MR)) comparable to their fully inorganic counterparts. However, these results are a matter of debate as the conductivity of the devices does not show the expected temperature dependence. Here we show spin valves with an interlayer of bathocuproine in which the transport takes place unambiguously through the organic layer and where the electron spin coherence is maintained over large distances (>60 nm) at room temperature. Additionally, the devices show excellent air stability, with MR values almost unaltered after 70 days of storage under ambient conditions, making bathocuproine an interesting material for future spintronic applications.

Suggested Citation

  • Xiangnan Sun & Marco Gobbi & Amilcar Bedoya-Pinto & Oihana Txoperena & Federico Golmar & Roger Llopis & Andrey Chuvilin & Fèlix Casanova & Luis E Hueso, 2013. "Room-temperature air-stable spin transport in bathocuproine-based spin valves," Nature Communications, Nature, vol. 4(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3794
    DOI: 10.1038/ncomms3794
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    Cited by:

    1. Xueli Yang & Ankang Guo & Jie Yang & Jinyang Chen & Ke Meng & Shunhua Hu & Ran Duan & Mingliang Zhu & Wenkang Shi & Yang Qin & Rui Zhang & Haijun Yang & Jikun Li & Lidan Guo & Xiangnan Sun & Yunqi Liu, 2024. "Halogenated-edge polymeric semiconductor for efficient spin transport," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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