Abstract
The electrical resistance and the thermoelectric power in the ab plane of a weakly oxygen-doped La2CuO4+x crystal (0.001<x<0.007) and its static magnetic susceptibility were studied in the vicinity of antiferromagnetic transition. The electrical resistance and the thermoelectric power behave anomalously near the Néel temperature, indicating that the transport is strongly affected by the establishment of long-range antiferromagnetic order. Analysis of the obtained data allows the conclusion to be drawn that the doping gives rise to a conduction band as a result of the overlap between the wave functions of deep impurity states that are strongly renormalized due to the correlation and polaron effects.
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References
T. Ito, K. Takenaka, and S. Uchida, Phys. Rev. Lett. 70, 3995 (1993).
J. Orenstein and A. J. Millis, Science 288, 468 (2000).
M. A. Kastner, R. J. Birgenau, G. Shirane, and Y. Endoh, Rev. Mod. Phys. 70, 897 (1998).
Y. Ando, A. N. Lavrov, S. Komiya, et al., Phys. Rev. Lett. 87, 17001 (2001).
A. N. Lavrov, Y. Ando, K. Segawa, and J. Takeya, Phys. Rev. Lett. 83, 1419 (1999).
T. Kitajima, T. Takayanagi, T. Takemura, and I. Terasakii, J. Phys.: Condens. Matter 11, 3169 (1999).
É. L. Nagaev, Physics of Magnetic Semiconductors (Nauka, Moscow, 1979).
A. A. Nikonov and O. E. Parfenov, Pis’ma Zh. Éksp. Teor. Fiz. 72, 797 (2000) [JETP Lett. 72, 550 (2000)].
S. N. Barilo, D. I. Zhigunov, S. V. Shiryaev, et al., Poverkhnost, No. 3, 20 (2002).
A. F. Ioffe, Physics of Semiconductors (Akad. Nauk SSSR, Leningrad, 1957; Infosearch, London, 1960).
F. Cordero and R. Cantelli, Physica C (Amsterdam) 312, 213 (1999).
I. G. Austin and N. F. Mott, Adv. Phys. 18, 41 (1969).
J. R. Cooper, B. Alavi, L. W. Zhou, et al., Phys. Rev. B 35, 8794 (1987).
T. E. Whall, J. Phys. C 14, L887 (1981).
S. D. Baranovskii and V. G. Karpov, Fiz. Tekh. Poluprovodn. (Leningrad) 21, 3 (1987) [Sov. Phys. Semicond. 21, 1 (1987)].
A. O. Gogolin and A. S. Ioselevich, Zh. Éksp. Teor. Fiz. 98, 681 (1990) [Sov. Phys. JETP 71, 380 (1990)].
K. M. Rabe and R. N. Bhatt, J. Appl. Phys. 69, 4508 (1991).
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 76, No. 10, 2002, pp. 719–722.
Original Russian Text Copyright © 2002 by Parfenov, Nikonov, Barilo.