Abstract
The temperature evolution of in-gap states created by the spin polaron effect and located within the gap with charge transfer between the valence and conduction bands is studied for the case of strong electron correlations using the t-t′-t″-J model of antiferromagnetic undoped cuprates. The effect of temperature is taken into account by temperature renormalization of the magnon concentration, which is calculated using the Heisenberg model with inclusion of weak interlayer exchange and weak in-plane spin anisotropy, and by introducing a Lorentzian with a temperature-dependent half-width in the form corresponding to the marginal Fermi liquid model. With increasing temperature, the spectral weight of the in-gap state, which is proportional to the magnon concentration, grows leading to an increased intensity of the corresponding peak of the spectral function in all points of the Brillouin zone. At points (π/2, π/2) and (π, 0), the main peak is approached by the satellite peak related to the in-gap band and, at points (0, 0) and (π, π), the peaks move away from each other.
Article PDF
Similar content being viewed by others
References
M. Suzuki, Phys. Rev. B: Condens. Matter 39, 2312 (1989).
S. Uchida, T. Ido, H. Takagi, T. Arima, Y. Tokura, and S. Tajima, Phys. Rev. B: Condens. Matter 43, 7942 (1991).
A. V. Bazhenov, A. V. Gorbunov, and V. E. Timofeev, Zh. Éksp. Teor. Fiz. 104(3), 3193 (1993) [JETP 77 (3), 500 (1993)].
W. Stephan and P. Horsch, Phys. Rev. Lett. 66, 2258 (1991).
E. Dagotto, A. Moreo, F. Ortolani, J. Riera, and D. J. Scalapino, Phys. Rev. Lett. 67, 1918 (1991).
Y. Ohta, K. Tsutsui, W. Koshibae, T. Shimozato, and S. Maekawa, Phys. Rev. B: Condens. Matter 46, 14 022 (1992).
R. Press, W. Hanke, and W. von der Linden, Phys. Rev. Lett. 75, 1344 (1995).
N. Harima, J. Matsuno, A. Fujimori, Y. Onose, Y. Taguchi, and Y. Tokura, Phys. Rev. B: Condens. Matter 64, 220 507R (2001).
Yu. Gaididei and V. Loktev, Phys. Status Solidi B 147, 307 (1988).
S. G. Ovchinnikov and I. S. Sandalov, Physica C (Amsterdam) 161, 607 (1989).
V. A. Gavrichkov, S. G. Ovchinnikov, A. A. Borisov, and E. G. Goryachev, Zh. Éksp. Teor. Fiz. 118(2), 422 (2000) [JETP 91 (2), 369 (2000)].
V. Gavrichkov, A. Borisov, and S. G. Ovchinnikov, Phys. Rev. B: Condens. Matter 64, 235 124 (2001).
S. G. Ovchinnikov, A. A. Borisov, V. A. Gavrichkov, and M. M. Korshunov, J. Phys.: Condens. Mater 16, L93 (2004).
V. A. Gavrichkov and S. G. Ovchinnikov, Zh. Éksp. Teor. Fiz. 125(3), 630 (2004) [JETP 98 (3), 556 (2004)].
M. M. Korshunov, V. A. Gavrichkov, S. G. Ovchinnikov, I. A. Nekrasov, Z. V. Pchelkina, and V. I. Anisimov, Phys. Rev. B: Condens. Matter 72, 165 104 (2005).
M. M. Korshunov and S. G. Ovchinnikov, Fiz. Tverd. Tela (St. Petersburg) 43(3), 399 (2001) [Phys. Solid State 43 (3), 416 (2001)].
R. O. Zaĭtsev, Zh. Éksp. Teor. Fiz. 68(1), 207 (1975) [Sov. Phys. JETP 41 (1), 100 (1975)].
A. N. Podmarkov and I. S. Sandalov, Zh. Éksp. Teor. Fiz. 86(4), 1461 (1984) [Sov. Phys. JETP 59 (4), 856 (1984)].
M. Manojlović, M. Pavkov, M. Škrinjar, M. Pantić, D. Kapor, and S. Stojanović, Phys. Rev. B: Condens. Matter 68, 014 435 (2003).
S. V. Tyablikov, Method in the Quantum Theory of Magnetism, 2nd ed. (Plenum, New York, 1967; Nauka, Moscow, 1975).
R. J. Brigeneau, M. Greven, M. A. Kaster, Y. S. Lee, B. O. Wells, and G. Shirane, cond-mat/9903124.
J. Rossat-Mignod, L. P. Regnault, P. Bourges, P. Burlet, C. Vettier, and J. Y. Henry, Frontiers in Solid State Sciences: Magnetism and Superconductivity (Word Sci., Singapore, 1994).
B. Keimer, N. Belk, R. J. Brigeneau, A. Cassanho, C. Y. Chen, R. W. Irwin, and G. Shinare, Phys. Rev. B: Condens. Matter 46, 14 034 (1992).
C. M. Varma, P. B. Littlewood, and S. Schmitt-Rink, Phys. Rev. Lett. 63, 1996 (1989).
M. M. Zemljic and P. Prelovsek, Phys. Rev. B: Condens. Matter 75, 104 514 (2007).
Y. Shibata, T. Tohyama, and S. Maekawa, Phys. Rev. B: Condens. Matter 59, 1840 (1999).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © S.G. Ovchinnikov, M.M. Korshunov, E.V. Zakharova, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 8, pp. 1349–1354.
Rights and permissions
This article is published under an open access license. Please check the 'Copyright Information' section either on this page or in the PDF for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team.
About this article
Cite this article
Ovchinnikov, S.G., Korshunov, M.M. & Zakharova, E.V. Temperature evolution of spin-polaron in-gap states in undoped antiferromagnetic cuprates. Phys. Solid State 50, 1401–1406 (2008). https://doi.org/10.1134/S1063783408080027
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063783408080027