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De Haas-van Alphen oscillations in the quasi-two-dimensional organic metal (BEDO-TTF)5[CsHg(SCN)4]2

  • Low-Dimensional Systems and Surface Physics
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Abstract

The magnetization oscillations in the quasi-two-dimensional organic metal (BEDO-TTF)5[CsHg(SCN)4]2 are thoroughly investigated over a wide range of magnetic field directions at different temperatures down to 0.4 K. The results obtained are in good agreement with the shape and sizes of the Fermi surface calculated from the x-ray diffraction data. Apart from the fundamental frequencies, the combination frequencies are found in the magnetization oscillation spectrum. It is demonstrated that these combination frequencies are governed by the motion of charge carriers along the real closed orbits inside the network of magnetic breakdown orbits formed under the action of the magnetic field. It is uniquely established that the combination frequencies previously revealed in the magnetoresistance oscillation spectrum of the same metal are associated with the quantum interference effect. The angular dependences of the oscillation amplitude exhibit minima, which are explained by the spin splitting of the Landau levels.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    R. B. Lyubovskiĭ, S. I. Pesotskiĭ, E. I. Zhilyaeva, O. A. Bogdanova & R. N. Lyubovskaya

  2. Walther Meissner Institute, Garching, D-85748, Germany

    S. I. Pesotskiĭ & W. Biberacher

  3. International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, 53-421, Poland

    R. B. Lyubovskiĭ & S. I. Pesotskiĭ

Authors
  1. R. B. Lyubovskiĭ
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  2. S. I. Pesotskiĭ
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  3. W. Biberacher
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  4. E. I. Zhilyaeva
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  5. O. A. Bogdanova
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  6. R. N. Lyubovskaya
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Corresponding author

Correspondence to S. I. Pesotskiĭ.

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Original Russian Text © R.B. Lyubovskiĭ, S.I. Pesotskiĭ, W. Biberacher, E.I. Zhilyaeva, O.A. Bogdanova, R.N. Lyubovskaya, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 8, pp. 1501–1504.

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Lyubovskiĭ, R.B., Pesotskiĭ, S.I., Biberacher, W. et al. De Haas-van Alphen oscillations in the quasi-two-dimensional organic metal (BEDO-TTF)5[CsHg(SCN)4]2 . Phys. Solid State 50, 1560–1564 (2008). https://doi.org/10.1134/S1063783408080295

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  • DOI: https://doi.org/10.1134/S1063783408080295

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