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2012 | 121 | 5-6 | 1191-1194
Article title

Magnetoresistance and Intrinsic Pinning of Vortices in the Untwinned YBa_2Cu_3O_{7 - δ} Single Crystals with Optimal Oxygen Content and a Small Deviation from the Oxygen Stoichiometry

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EN
Abstracts
EN
We study the temperature dependence of the in-plane magnetoresistance ρ_{ab}(T) in untwinned YBa_2Cu_3O_{7 - δ} single crystals with the optimal oxygen content and with a small deficit of oxygen atoms at different angles between the external magnetic field 15 kOe and the ab-planes α. We found that at high temperatures in the pseudogap region external magnetic field does not affect the ρ_{ab}(T) but it broadens transitional region T_{c} - T_{c0} from 0.3 K at zero field and α = 0 to approximately 6 K at α = 60° in the field. In case of optimal doping the function ρ_{ab}(T) display a 3D to 2D dimensional crossover when temperature decreases from T_{c} to T_{c0} and scaling near the T_{c0} which we relate to the flux-flow and vortex-lattice melting. In the underdoped sample the vortices are effectively pinned by the random oxygen vacancies and the function ρ_{ab}(T) in transitional region has smooth tails without any traces of crossover and scaling.
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EN
Year
Volume
121
Issue
5-6
Pages
1191-1194
Physical description
Dates
published
2012-05
References
  • 1. S. Hufner, M.A. Hossail, A. Domascelli, G.A. Sawatsky, Rep. Prog. Phys. 71, 062501 (2008)
  • 2. P.A. Lee, N. Nagaosa, X.G. Wen, Rev. Mod. Phys. 78, 17 (2006)
  • 3. G. Blatter, M.V. Feigel'man, V.B. Geshkenbein, A.I. Larkin, V.M. Vinokur, Rev. Mod. Phys. 66, 1125 (1994)
  • 4. A.A. Zavgorodniy, R.V. Vovk, M.A. Obolenskii, A.V. Samoilov, Low Temp. Phys. 36, 143 (2010)
  • 5. R.V. Vovk, M.A. Obolenskii, A.V. Bondarenko, I.L. Goulatis, A.V. Samoilov, A. Chroneos, V.M. Pinto Simoes, J. Alloys Comp. 464, 58 (2008)
  • 6. R.M. Costa, I.C. Riegel, A.R. Jurelo, J.L. Pimentel Jr., J. Magn. Magn. Mater. 320, 493 (2008)
  • 7. J. Giapintzakis, D.M. Ginzberg, P.D. Han, J. Low Temp. Phys. 77, 155 (1989)
  • 8. L. Mendonca Ferreira, P. Pureur, H.A. Borges, P. Lejay, Phys. Rev. B 69, 212505 (2004)
  • 9. N. Doiron-Leyraud, C. Proust, D. LeBoeuf, J. Levallois, J.-B. Bonnemaison, R. Liang, D.A. Bonn, W.N. Hardy, L. Taillefer, Nature 447, 565 (2007)
  • 10. R. Daou, N. Doiron-Leyraud, D. LeBoeuf, S.Y. Li, F. Laliberté, O. Cyr-Choinière, Y.J. Jo, L. Balicas, J.-Q. Yan, J.-S. Zhou, J.B. Goodenough, L. Taillefer, Nature Phys. 5, 31 (2009)
  • 11. F. Rullier-Albenque, H. Alloul, F. Balakirev, C. Proust, Eur. Phys. Lett. 81, 37008 (2008)
  • 12. E.H. Brandt, Phys. Rev. B 34, 6514 (1986); 71, 014521 (2005)
  • 13. B.Y. Jin, J.B. Ketterson, Adv. Phys. 38, 189 (1989)
  • 14. V.M. Gvozdikov, Low Temp. Phys. 16, 1 (1990)
  • 15. V.M. Gvozdikov, M. Teixeira, Low Temp. Phys. 19, 1302 (1993)
  • 16. V.M. Gvozdikov, L.Z. Kaganovsky, Czechoslovak J. Phys. 46, S3, 1181 (1996)
  • 17. V.M. Gvozdikov, M. Teixeira, Proc. Kharkov Nat. University 476, 42 (2000)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n5-6p61kz
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