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Magnetic-field-induced phase transition in a two-dimensional quantum magnet with plaquette distortion

  • Low-Temperature Solid-State Physics
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Abstract

Magnetic field effect on the structure of the ground state of a two-dimensional quantum Heisenberg magnet is analyzed. A plaquette representation is used to solve the self-consistent problem and calculate the collective excitation spectrum in a magnetic field. Conditions are found for quantum transition between non-magnetic and oblique antiferromagnetic phases. The change in the ground state of the system is associated with disappearance of the gap in the spin excitation spectrum. Effects of frustration and magnetic field on the spectrum are analyzed. A phase diagram of stable singlet and magnetically ordered phases is presented.

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References

  1. P. W. Anderson, Science 235, 1196 (1987).

    Article  ADS  Google Scholar 

  2. A. V. Chubukov, S. Sachdev, and J. Ye, Phys. Rev. B 49, 11919 (1994).

    Google Scholar 

  3. A. P. Kampf, Phys. Rep. 249, 219 (1994).

    Article  ADS  Google Scholar 

  4. S. Taniguchi, T. Nishikawa, Y. Yasui, et al., J. Phys. Soc. Jpn. 64, 2758 (1995).

    Article  ADS  Google Scholar 

  5. G. Petrakovskii, K. A. Sablina, A. M. Vorotynov, et al., Phys. Solid State 41, 610 (1999).

    Article  ADS  Google Scholar 

  6. H. Kageyama, K. Yoshimura, R. Stern, et al., Phys. Rev. Lett. 82, 3168 (1999).

    Article  ADS  Google Scholar 

  7. M. B. Stone, I. Zaliznyak, D. H. Reich, et al., Phys. Rev. B 64, 144405 (2001).

  8. A. I. Buzdin and L. N. Bulaevskiĭ, Usp. Fiz. Nauk 131, 495 (1980) [Sov. Phys. Usp. 23, 409 (1980)].

    Google Scholar 

  9. V. V. Val’kov, V. A. Mitskan, and G. A. Petrakovskiĭ, Zh. Éksp. Teor. Fiz. 129, 268 (2006) [JETP 102, 234 (2006)].

    Google Scholar 

  10. V. N. Glazkov, A. I. Smirnov, H. Tanaka, and A. Oosava, Phys. Rev. B 69, 184410 (2006).

    Google Scholar 

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Authors and Affiliations

  1. Kirenskiĭ Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia

    V. V. Val’kov & V. A. Mitskan

  2. Krasnoyarsk State University, Krasnoyarsk, 660075, Russia

    V. V. Val’kov & V. A. Mitskan

  3. Krasnoyarsk State Technical University, Krasnoyarsk, 660074, Russia

    V. V. Val’kov

Authors
  1. V. V. Val’kov
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  2. V. A. Mitskan
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Additional information

Original Russian Text © V.V. Val’kov, V.A. Mitskan, 2007, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 132, No. 1, pp. 103–107.

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Val’kov, V.V., Mitskan, V.A. Magnetic-field-induced phase transition in a two-dimensional quantum magnet with plaquette distortion. J. Exp. Theor. Phys. 105, 90–93 (2007). https://doi.org/10.1134/S1063776107070199

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  • DOI: https://doi.org/10.1134/S1063776107070199

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