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Single molecule magnet with an unpaired electron trapped between two lanthanide ions inside a fullerene

Author

Listed:
  • Fupin Liu

    (Leibniz Institute for Solid State and Materials Research)

  • Denis S. Krylov

    (Leibniz Institute for Solid State and Materials Research)

  • Lukas Spree

    (Leibniz Institute for Solid State and Materials Research)

  • Stanislav M. Avdoshenko

    (Leibniz Institute for Solid State and Materials Research)

  • Nataliya A. Samoylova

    (Leibniz Institute for Solid State and Materials Research)

  • Marco Rosenkranz

    (Leibniz Institute for Solid State and Materials Research)

  • Aram Kostanyan

    (Physik-Institut der Universität Zürich)

  • Thomas Greber

    (Physik-Institut der Universität Zürich)

  • Anja U. B. Wolter

    (Leibniz Institute for Solid State and Materials Research)

  • Bernd Büchner

    (Leibniz Institute for Solid State and Materials Research)

  • Alexey A. Popov

    (Leibniz Institute for Solid State and Materials Research)

Abstract

Increasing the temperature at which molecules behave as single-molecule magnets is a serious challenge in molecular magnetism. One of the ways to address this problem is to create the molecules with strongly coupled lanthanide ions. In this work, endohedral metallofullerenes Y2@C80 and Dy2@C80 are obtained in the form of air-stable benzyl monoadducts. Both feature an unpaired electron trapped between metal ions, thus forming a single-electron metal-metal bond. Giant exchange interactions between lanthanide ions and the unpaired electron result in single-molecule magnetism of Dy2@C80(CH2Ph) with a record-high 100 s blocking temperature of 18 K. All magnetic moments in Dy2@C80(CH2Ph) are parallel and couple ferromagnetically to form a single spin unit of 21 μB with a dysprosium-electron exchange constant of 32 cm−1. The barrier of the magnetization reversal of 613 K is assigned to the state in which the spin of one Dy centre is flipped.

Suggested Citation

  • Fupin Liu & Denis S. Krylov & Lukas Spree & Stanislav M. Avdoshenko & Nataliya A. Samoylova & Marco Rosenkranz & Aram Kostanyan & Thomas Greber & Anja U. B. Wolter & Bernd Büchner & Alexey A. Popov, 2017. "Single molecule magnet with an unpaired electron trapped between two lanthanide ions inside a fullerene," Nature Communications, Nature, vol. 8(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16098
    DOI: 10.1038/ncomms16098
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    Cited by:

    1. Jie Zhang & Linshan Liu & Chaofeng Zheng & Wang Li & Chunru Wang & Taishan Wang, 2023. "Embedded nano spin sensor for in situ probing of gas adsorption inside porous organic frameworks," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Chenli Huang & Rong Sun & Lipiao Bao & Xinyue Tian & Changwang Pan & Mengyang Li & Wangqiang Shen & Kun Guo & Bingwu Wang & Xing Lu & Song Gao, 2023. "A hard molecular nanomagnet from confined paramagnetic 3d-4f spins inside a fullerene cage," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Yingjing Yan & Laura Abella & Rong Sun & Yu-Hui Fang & Yannick Roselló & Yi Shen & Meihe Jin & Antonio Rodríguez-Fortea & Coen Graaf & Qingyu Meng & Yang-Rong Yao & Luis Echegoyen & Bing-Wu Wang & Son, 2023. "Actinide-lanthanide single electron metal-metal bond formed in mixed-valence di-metallofullerenes," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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