For two-layer quasi-two-dimensional antiferromagnets of type YBaCuO in the Tyablikov approximation, we investigate the dependences of the energy spectrum and the temperature of transition into an ordered state on both the quasi-two-dimensionality parameter and the intensity of the exchange coupling of spin moments located in two close planes. We assume that the exchange parameters inside the CuO 2 planes are much greater than the exchange parameters resulting in coupling between a spin located on a plane of an elementary cell and a spin on another plane of a different elementary cell. The obtained expressions for the Néel temperature and for the sublattice magnetic moment at zero temperature describe the dependences of these quantities on the parameters of interplane exchange interactions.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Meng, L. Gao, Z. J. Huang, Y. Q. Wang, and C. W. Chu, Phys. Rev. Lett., 58, 908–910 (1987).
J. D. Jorgensen, B. W. Veal, A. P. Paulikas, L. J. Nowicki, G. W. Crabtree, H. Claus, and W. K. Kwok, Phys. Rev. B, 41, 1863–1877 (1990).
J. M. Tranquada, A. H. Moudden, A. I. Goldman, P. Zolliker, D. E. Cox, G. Shirane, S. K. Sinha, D. Vaknin, D. C. Johnston, M. S. Alvarez, A. J. Jacobson, J. T. Lewandowski, and J. M. Newsam, Phys. Rev. B, 38, 2477–2485 (1988).
M. E. Lines, Phys. Rev. A, 135, A1336–A1346 (1964).
S. B. Khokhlachev, JETP, 43, 137–141 (1976).
O. G. Petrakovskii and S. G. Ovchinnikov, Sov. Phys. Solid, 29, 1866 (1987).
H. Shimahara and S. Takada, J. Phys. Soc. Japan, 60, 2394–2405 (1991).
A. F. Barabanov and O. A. Starykh, J. Phys. Soc. Japan, 61, 704–708 (1992).
E. V. Kuz’min, S. G. Ovchinnikov, and D. J. Singh, JETP, 96, 1124–1130 (2003).
A. W. Sandvic, A. V. Chubukov, and S. Sachdev, Phys. Rev. B, 51, 16483–16486 (1995); arXiv:cond-mat/9502012v2 (1995).
N. A. Kozlov and A. F. Barabanov, JETP Lett., 85, 544–549 (2007).
S. V. Tyablikov, Methods in the Quantum Theory of Magnetism [in Russian], Nauka, Moscow (1975); English transl. prev. ed., Plenum, New York (1967).
N. M. Plakida, Theor. Math. Phys., 5, 1047–1052 (1970).
S. M. Hayden, G. Aeppli, T. G. Perring, H. A. Mook, and F. Dogan, Phys. Rev. B, 54, R6905–R6908 (1996); arXiv:cond-mat/9605139v2 (1996).
Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 168, No. 3, pp. 417–427, September, 2011.
About this article
Cite this article
Val’kov, V.V., Fedoseev, A.D. Thermodynamic properties of two-layer quasi-two-dimensional antiferromagnets. Theor Math Phys 168, 1216–1224 (2011). https://doi.org/10.1007/s11232-011-0099-6
- high-temperature superconductor
- Tyablikov approximation
- Green’s function