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Observation and electric current control of a local spin in a single-molecule magnet

Author

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  • Tadahiro Komeda

    (Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen), Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-0877, Japan.
    CREST, Japan Science and Technology Agency (JST))

  • Hironari Isshiki

    (Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen), Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-0877, Japan.
    Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.)

  • Jie Liu

    (Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen), Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-0877, Japan.
    Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.)

  • Yan-Feng Zhang

    (Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen), Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-0877, Japan.)

  • Nicolás Lorente

    (Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen), Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-0877, Japan.
    Centro de Investigación en Nanociencia y Nanotecnología (CSIC-ICN))

  • Keiichi Katoh

    (Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.)

  • Brian K. Breedlove

    (Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.)

  • Masahiro Yamashita

    (Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.)

Abstract

In molecular spintronics, the spin state of a molecule may be switched on and off by changing the molecular structure. Here, we switch on and off the molecular spin of a double-decker bis(phthalocyaninato)terbium(III) complex (TbPc2) adsorbed on an Au(111) surface by applying an electric current via a scanning tunnelling microscope. The dI/dV curve of the tunnelling current recorded onto a TbPc2 molecule shows a Kondo peak, the origin of which is an unpaired spin of a π-orbital of a phthalocyaninato (Pc) ligand. By applying controlled current pulses, we could rotate the upper Pc ligand in TbPc2, leading to the disappearance and reappearance of the Kondo resonance. The rotation shifts the molecular frontier-orbital energies, quenching the π-electron spin. Reversible switching between two stable ligand orientations by applying a current pulse should make it possible to code information at the single-molecule level.

Suggested Citation

  • Tadahiro Komeda & Hironari Isshiki & Jie Liu & Yan-Feng Zhang & Nicolás Lorente & Keiichi Katoh & Brian K. Breedlove & Masahiro Yamashita, 2011. "Observation and electric current control of a local spin in a single-molecule magnet," Nature Communications, Nature, vol. 2(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1210
    DOI: 10.1038/ncomms1210
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    Cited by:

    1. Hui-Nan Xia & Emi Minamitani & Rok Žitko & Zhen-Yu Liu & Xin Liao & Min Cai & Zi-Heng Ling & Wen-Hao Zhang & Svetlana Klyatskaya & Mario Ruben & Ying-Shuang Fu, 2022. "Spin-orbital Yu-Shiba-Rusinov states in single Kondo molecular magnet," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. Giulia Serrano & Lorenzo Poggini & Giuseppe Cucinotta & Andrea Luigi Sorrentino & Niccolò Giaconi & Brunetto Cortigiani & Danilo Longo & Edwige Otero & Philippe Sainctavit & Andrea Caneschi & Matteo M, 2022. "Magnetic molecules as local sensors of topological hysteresis of superconductors," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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