Ba3V2S4O3: A Mott Insulating Frustrated Quasi-One-Dimensional S=1 Magnet

Hopkins, Emily Jane; Prots, Yurii; Burkhardt, Ulrich; Watier, Yves; Hu, Zhiwei; Kuo, Chang-Yang; Chiang, Jen-Che; Pi, Tun-Wen; Tanaka, Arata; Tjeng, Liu Hao; Valldor, Martin

doi:10.1002/chem.201406511

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Ba₃V₂S₄O₃: A Mott Insulating Frustrated Quasi-One-Dimensional S=1 Magnet

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Hopkins, Emily Jane
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126806

Prots, Yurii
Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126556

Burkhardt, Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126666

Hu, Zhiwei
Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Kuo, Chang-Yang
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons173786

Chiang, Jen-Che
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126881

Tjeng, Liu Hao
Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126889

Valldor, Martin
Martin Valldor, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Hopkins, E. J., Prots, Y., Burkhardt, U., Watier, Y., Hu, Z., Kuo, C.-Y., Chiang, J.-C., Pi, T.-W., Tanaka, A., Tjeng, L. H., & Valldor, M. (2015). Ba₃V₂S₄O₃: A Mott Insulating Frustrated Quasi-One-Dimensional S=1 Magnet. Chemistry – A European Journal, 21(21), 7938-7943. doi:10.1002/chem.201406511.

引用: https://hdl.handle.net/11858/00-001M-0000-0027-7E02-8

要旨

Through a solid-state reaction, a practically phase pure powder of Ba3V2S4O3 was obtained. The crystal structure was confirmed by X-ray single-crystal and synchrotron X-ray powder diffraction (P6(3), a=10.1620(2), c=5.93212(1)angstrom). X-ray absorption spectroscopy, in conjunction with multiplet calculations, clearly describes the vanadium in charge-disproportionated (VS6)-S-III and (VSO3)-S-V coordinations. The compound is shown to be a strongly correlated Mott insulator, which contradicts previous predictions. Magnetic and specific heat measurements suggest dominant antiferromagnetic spin interactions concomitant with a weak residual ferromagnetic component, and that intrinsic geometric frustration prevents long-range order from evolving.