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Possible weakening of the many-body interactions in the organic quasi-two-dimensional metal α-(BETS)2NH4Hg(SCN)4

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Abstract

The behavior of the de Haas-van Alphen oscillations in the organic quasi-two-dimensional metal α-(BETS)2NH4Hg(SCN)4 is comprehensively studied as a function of the angle between the magnetic-field direction and the normal to the conducting layers in it. The angular dependence of the oscillation amplitude has minima at angles of ±40° and ±62°, which are caused by the spin zero effect. The positions of these minima suggest that the electron-phonon and electron-electron interactions in this metal are significantly weakened.

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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

    S. I. Pesotskiĭ, R. B. Lyubovskiĭ & N. D. Kushch

  2. International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, 53-529, Poland

    S. I. Pesotskiĭ & R. B. Lyubovskiĭ

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

    S. I. Pesotskiĭ, M. V. Kartsovnik, W. Biberacher & N. D. Kushch

  4. Department of Chemistry, Nihon University, Tokyo, 156-8550, Japan

    A. Kobayashi & B. Zhou

Authors
  1. S. I. Pesotskiĭ
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  2. R. B. Lyubovskiĭ
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  3. M. V. Kartsovnik
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  4. W. Biberacher
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  5. N. D. Kushch
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  6. A. Kobayashi
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  7. B. Zhou
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Correspondence to S. I. Pesotskiĭ.

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Original Russian Text © S.I. Pesotskiĭ, R.B. Lyubovskiĭ, M.V. Kartsovnik, W. Biberacher, N.D. Kushch, A. Kobayashi, B. Zhou, 2009, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 136, No. 4, pp. 771–774.

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Pesotskiĭ, S.I., Lyubovskiĭ, R.B., Kartsovnik, M.V. et al. Possible weakening of the many-body interactions in the organic quasi-two-dimensional metal α-(BETS)2NH4Hg(SCN)4 . J. Exp. Theor. Phys. 109, 664–666 (2009). https://doi.org/10.1134/S1063776109100124

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  • DOI: https://doi.org/10.1134/S1063776109100124

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