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Humanities and Science University Journal №35 (Physical and mathematical, biological and technical science), 2017

Effective Atomic Charges in YBa2Cu3O7 and La2-xSrxCuO4 Crystal Lattices

G. A. Bordovsky, P. P. Seregin, F. S. Nasredinov, V. S. Kiselev
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 Experimental values of the electric field gradient tensor parameters (obtained by emission Mössbauer spectroscopy with the 57Fe, 67Zn, 155Gd isotopes, and by nuclear quadrupole resonance with the 17O and 137Ba nuclei) match with the calculated ones (point charge model) for the YBa2Cu3O7 and La2-xSrxCuO4 lattices of high-temperature superconductors only under the assumption that electronic defects are localized
within chain and planar oxygen sublattices in YBa2Cu3O7 and within planar oxygen sublattice in La2-xSrxCuO4.

Keywords: Parameters of nuclear quadrupole interaction, Mössbauer spectroscopy, hightemperature superconductors.
REFERENCES
1. Seregin, N., Marchenko, A., & Seregin, P. Emission Mossbauer Spectroscopy:
Electron defects and Bose-condensation in crystal lattices of high-temperature superconductors. Germany: LAP Lambert, 2015.
2.
Takigawa, M., Hammel, P.C., Heffner, R.H., Fisk, Z., Ott, K.C., & Thompson, J.D. 17O NMR study of local spin susceptibility in aligned YBa2Cu3O7.
Physical Review Letters. 1989, Vol. 63, no. 17, pp. 1865–1868. doi:10.1103/
PhysRevLett.63.1865
3.
Ishida, K., Kitaoka, Y., & Zheng, G. 17O and 63Cu NMR investigations of
high-Tc superconductor La1.85Sr0.15CuO4 with Tc = 38 K.
Journal of the Physical
Society of Japan.
1991, Vol. 60, no. 10, pp. 1516–1524. doi:10.1143/JPSJ.60.3516
4.
Shore, J., Yang, S., Haase, J., Schwartz, D., & Oldfield E. Barium nuclear
resonance spectroscopic study of YBa2Cu3O7.
Physical Review B, Condensed matter.
1992, Vol. 46, no. 1, pp. 595–598. doi:10.1103/PhysRevB.46.595
5.
Lombardi, A., Mali, M., Roos, J., & Brinkmann, D. Hyperfine fields at the Ba
site in the antiferromagnet YBa2Cu3O6.
Physical Review B, Condensed matter. 1996,
Vol. 53, no. 21, pp. 14268–14273. doi:10.1103/PhysRevB.53.14268
6.
Bordovskiǐ, G.A., Marchenko, A.V., Seregin, P.P., & Terukov, E.I. Experimental determination of the spatial distribution of electron defects in La2 - x Sr x CuO4
and Nd2 - x Ce x CuO4 crystal lattices.
Technical Physics Letters. 2008, Vol. 34, no.
5, pp. 397–400. doi:10.1134/S1063785008050118
7.
Singh, D.J., Schwarz, K., & Blaha, P. Electric-field gradients in YBa2Cu3O7:
Discrepancy between experimental and local-density-approximation charge distributions.
Physical Review B, Condensed matter. 1992, Vol. 46, no. 9, pp. 5849–5852.
doi:10.1103/PhysRevB.46.5849
8.
Ivon, K., & Francois, M. Crystal structure of high-Tc oxides. Zeitschrift
für Physik B Condensed Matter.
1989, Vol. 76, no. 4, pp. 413–444. doi:10.1007/
BF01307892
9.
Wells, A.F. Structural inorganic chemistry. Oxford: Clarendon, 1984, 1416 pp.
10.
Tarascon, J.M., & Greene, L.H. Superconductivity at 40 K in the oxygendefect La2 - xSrxCuO4. Science. 1987, Vol. 235, no. 4794, pp. 1373–1380. doi:10.1126/
science.235.4794.1373
11.
Bordovskii, G.A., Terukov, E.I., Marchenko, A.V., Seregin, P.P., & Shaldenkova, A.V. Absolute atomic charges in YBa2Cu3O7 lattice determined by analysis
of the nuclear quadrupole interaction parameters.
Technical Physics Letters. 2017,
Vol. 43, no. 4, pp. 405–408. doi:10.1134/S1063785017040186

  12. Konstantinovic, J., Parette, G., Djordjevic, Z., & Menelle, A. Structural
transformations of the YBa2Cu3O7 crystal lattice in the temperature interval 9 K to 300
K.
Solid State Communications. 1989, Vol. 70, no. 2, pp. 163–166. doi:10.1016/0038-
1098(89)90967-8
13.
Francois, M., Junod, A., Yvon, K., Kewat, A., Capponl, J., Strobel, P.,
Marezio, M., & Fischer, P.
A study of the Cu–O chains in the high Tc superconductor
YBa2Cu3O7 by high resolution neutron povder diffraction.
Solid State Communications. 1988, Vol. 66, no. 10, pp. 1117–1125. doi:10.1016/0038-1098(88)90335-3
14.
Capponi, J., Chaillout, J., Hewat, C., & Lejay, A. Structure of the 100 K superconductor Ba2YCu3O7 between (5–300) K by neutron powder diffraction. Europhysics
Letters
. 1987, Vol. 3, no. 12, pp. 1301–1307. doi:10.1209/0295-5075/3/12/009
15.
Le Page,Y., Siegrist, T., Sunshine, S.A., Schneemeyer, L.F., Murphy, D.W.,
Zahurak, S.M., Waszczak, J.V., McKinnon, W.R., Tarascon, J.M., Hull, G.W., &
Greene L.H.
Structural properties of Ba2YCu3O7 high-Tc superconductors. Physical
Review B
. 1987, Vol. 36, no. 7, pp. 3617–3621. doi:10.1103/PhysRevB.36.3617
16.
Wortmann, G., Kolodziejczyk, A., Bergold, M., Stadermann, G., Simmons, C.T., & Kaindl, G. Mossbauer studies of YBa2Cu3O7 type high-Tc superconductor. Hyperfine Interactions. 1989, Vol. 50, no. 1–4, pp. 555–568. doi:10.1007/
BF02407691
  
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