Funct. Mater. 2013; 20 (2): 208-216.
Effect of transverse and longitudinal magnetic field on the excess conductivity of YBa2Cu3–zAlzO7–δ single crystals with a given topology of plane defects
[1]V.Karazin Kharkiv National University, 4 Svoboda Sq., 61077 Kharkov, Ukraine
[2]Instituto Superior Dom Afonso III Convento Espirito Santo,8100-641 Loule, Portugal
[3]IPA_Instituto Superior Autonomo de Estudos Politecnicos, Rua de Xabregas, 20, 1° 1900-440 Lisboa, Portugal
[4]University of Exeter, Stocker road, Exeter, EX4 4QL, United Kingdom
The effect of a constant magnetic field to 12.7 kOe on the temperature dependences of electric conductivity of aluminum-doped YBaCuO single crystals with a system of unidirectional twinning boundaries has been investigated. It is determined that the twinning boundaries are effective centers of scattering of fluctuation carriers. Directly near Tc the temperature dependences of the excess paraconductivity are satisfactorily described by the Hikami-Larkin theoretical model of fluctuation conductivity for layered superconducting systems. The reasons for the suppression of three-dimensional superconducting fluctuations and the nonmonotonic dependence of ε c(0,H) in weak magnetic fields with the magnetic field vector oriented along c axis were discussed. It was shown that the lack of fan-shaped expansion of the resistive transitions in the magnetic field in these samples is conditioned by the lack of the no pinning vortex liquid phase due to increased pinning of the vortex lattice at the twin boundaries.
1. R.H.Koch, V.Foglietti, W.J.Gallagher, Phys. Rev. Lett., 68, 1511 (1989). http://dx.doi.org/10.1103/PhysRevLett.63.1511
2. R.V.Vovk, M.A.Obolenskii, A.A.Zavgorodniy, A.V.Bondarenko et al., J. Mater. Sci: Mater. Electron., 18, 811 (2007). http://dx.doi.org/10.1007/s10854-006-9086-3
3. R.V.Vovk, M.A.Obolenskiy, A.A.Zavgorodniy et al., Physica B, 404, 3516 (2009). http://dx.doi.org/10.1016/j.physb.2009.05.047
4. R.V.Vovk, Z.F.Nazyrov, M.A.Obolenskii et al., Journal of Alloys and Compounds, 509, 4553 (2011). http://dx.doi.org/10.1016/j.jallcom.2011.01.102
5. N.Ya. Fogel, I.M. dmitrenko, V.G. Cherkasova, SFKaT,2,115(1989)
6. A.V.Bondarenko, V.A.Shklovskij, M.A.Obolenskii et al., Phys. Rev. B, 58, 2445 (1998). http://dx.doi.org/10.1103/PhysRevB.58.2445
7. A.V.Bondarenko, A.A.Prodan, M.A. Obolenskii et al., Low Temp.Phys., 27, 339,(2001) [Fizika Nizkikh. Temp], 27,463, (2001).
8. T.K.Worthington, F.H.Holtzberg, C.A.Field, Cryogenics, 30, 417 (1990). http://dx.doi.org/10.1016/0011-2275(90)90168-C
9. R.V.Vovk, Z.F.Nazyrov, M.A.Obolenskii et al., Philosophical Magazine, 91, 2291 (2011). http://dx.doi.org/10.1080/14786435.2011.552893
10. R.B.Van Dover, L.F.Schneemeyer, J.V.Waszczak et al., Phys. Rev. B, 39, 2932 (1989). http://dx.doi.org/10.1103/PhysRevB.39.2932
11. R.V.Vovk, M.A.Obolenskii, A.V.Bondarenko et al., J. Alloys and Compaunds, 464, 58 (2008). http://dx.doi.org/10.1016/j.jallcom.2007.10.040
12. R.V.Vovk, V.M.Gvozdikov, M.A.Obolenskii et al., Acta Physica Polonica A, 121, 1191 (2012). http://dx.doi.org/10.12693/APhysPolA.121.1191
13. L.G.Aslamazov,A.L.Larkin, Sov. Phys. Solid State, 10, 3258 (1968)
14. J.S.Kouvel, M.E.Fischer, Phys. Rev., 136, A1616 (1964). http://dx.doi.org/10.1103/PhysRev.136.A1626
15. R.M.Costa, I.C.Riegel, A.R.Jurelo, J.L.Pimentel Jr., Journal of Magnetism and Magnetic Materials, 320, e493 (2008). http://dx.doi.org/10.1016/j.jmmm.2008.02.093
16. W.K.Kwok et al., Phys. Rev. Lett., 69, 3370 (1992). http://dx.doi.org/10.1103/PhysRevLett.69.3370
17. J.Rosenblatt, in: Percolation, Localization and Superconductivity, NATO ASI Series, ed. by A.M.Goldman and S.A.Wolf, Plenum, New York (1984), p.431. http://dx.doi.org/10.1007/978-1-4615-9394-2_17
18. G.Lacayc, R.Hermann, G.Kaestener, Physica C, 192, 207 (1992). http://dx.doi.org/10.1016/0921-4534(92)90762-2
19. R.V.Vovk, M.A.Obolenskii, Z.F.Nazyrov et al., J. Mater. Sci.:Mater. Electron., 23, 1255 (2012). http://dx.doi.org/10.1007/s10854-011-0582-8
20. S.Hikami, A.I.Larkin, Modern Phys. Lett., B2, 693 (1988). http://dx.doi.org/10.1142/S0217984988000369
21. J.B.Bieri, K.Maki, R.S.Thompson, Phys. Rev. B, 44, 4709 (1991). http://dx.doi.org/10.1103/PhysRevB.44.4709
22. G.D.Chryssikos, E.I.Kamitsos, J.A.Kapoutsis et al., Physica C, 254, 44 (1995). http://dx.doi.org/10.1016/0921-4534(95)00553-6
23. N.E. Alekseevskii, A.V.Mitin, V.I. Nizhankovskii, et al., Sverkhprovodimost^ Fiz., Khim, Tekhn., 2, 40 (1989).
24. D.A.Lotnyk, R.V.Vovk, M.A.Obolenskii et al., Journal of Low Temperature Physics, 161, 387 (2010). http://dx.doi.org/10.1007/s10909-010-0198-z
25. M.Daeumling, J.M.Seutjens, D.C.Larbalestier, Nature. London, 346, 332 (1990). http://dx.doi.org/10.1038/346332a0
26. G.Blatter, M.V.Feigel′man, V.B.Geshkenbein et al., Rev. Mod. Phys., 66, 1125 (1994). http://dx.doi.org/10.1103/RevModPhys.66.1125
27. L.Y.Vinnikov, L.A.Gurevich, G.A.Yemelchenko, Y.A.Ossipyan, Solid State Commun., 67, 421 (1988). http://dx.doi.org/10.1016/0038-1098(88)91058-7
28. D.H.S.Smith, R.V.Vovk, C.D.H.Williams, A.F.G.Wyatt, Phys. Rev. B, 72, 0546506 (2005).
29. D.H.S.Smith, R.V.Vovk, C.D.H.Williams, A.F.G.Wyatt, New Journal of Physics, 8, 128 (2006). http://dx.doi.org/10.1088/1367-2630/8/8/128
30. L.Reggani, R.Vaglio, A.A.Varlamov, Phys. Rev. B, 44, 9541 (1991). http://dx.doi.org/10.1103/PhysRevB.44.9541
31. R.V.Vovk, A.A.Zavgorodniy, M.A.Obolenskii et al., Modern Physics Letters B (MPLB) Condensed Matter Physics; Statistical Physics and Applied Physics, 24, 2295 (2010).
32. R.V.Vovk, M.A.Obolenskii, A.A.Zavgorodniy et al., J. Mater. Sci: Mater. in Electron., 20, 858 (2009). http://dx.doi.org/10.1007/s10854-008-9806-y
33. R.V.Vovk, M.A.Obolenskii, A.A.Zavgorodniy et al., J. Alloys Compd., 485, 121 (2009). http://dx.doi.org/10.1016/j.jallcom.2009.05.132
34. R.V.Vovk, A.A.Zavgorodniy, M.A.Obolenskii et al., Journal of Materials Science: Materials in Electronics, 22, 20 (2011). http://dx.doi.org/10.1007/s10854-010-0076-0
35. R.V.Vovk, Z.F.Nazyrov, I.L.Goulatis, A.Chroneos, Modern Physics Letters B (MPLB) Condensed Matter Physics; Statistical Physics and Applied Physics, 26, 1250163 (2012).