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Spin-orbit entanglement driven by the Jahn-Teller effect

Author

Listed:
  • Alejandro S. Miñarro

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB)

  • Mario Villa

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB)

  • Blai Casals

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB
    Universitat de Barcelona)

  • Sergi Plana-Ruiz

    (Universitat Rovira i Virgili
    Universitat de Barcelona)

  • Florencio Sánchez

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB)

  • Jaume Gázquez

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB)

  • Gervasi Herranz

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB)

Abstract

Spin-orbit entanglement in 4d and 5d transition metal systems can enhance electronic correlations, leading to nontrivial ground states and the emergence of exotic excitations. There is also an interest to investigate spin-orbit entanglement in 3d compounds, though this is challenging due to their smaller spin-orbit coupling. Here we demonstrate that the Jahn-Teller effect in Mn3+ reduces the energy gap between high- and low- spin-orbital states that lead to enhanced spin-orbit entanglement. Our results show a rare example of synergistic effects of Jahn-Teller and spin-orbit interactions and provide a way to entangle different degrees of freedom in d-metal oxides, which may allow paths to explore the interplay of orbital, lattice and spins in 3d correlated systems.

Suggested Citation

  • Alejandro S. Miñarro & Mario Villa & Blai Casals & Sergi Plana-Ruiz & Florencio Sánchez & Jaume Gázquez & Gervasi Herranz, 2024. "Spin-orbit entanglement driven by the Jahn-Teller effect," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52848-8
    DOI: 10.1038/s41467-024-52848-8
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    References listed on IDEAS

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    1. Wei-Tin Chen & Chin-Wei Wang & Ching-Chia Cheng & Yu-Chun Chuang & Arkadiy Simonov & Nicholas C. Bristowe & Mark S. Senn, 2021. "Striping of orbital-order with charge-disorder in optimally doped manganites," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
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