EFFECTS OF HIGHT HYDROSTATIC PRESSURE ON DIFFERENT TYPES OF CONDUCTIVITY OF YBaCuO SINGLE CRYSTALS WITH A GIVEN TOPOLOGY OF PLANAR DEFECTS

doi:10.26565/2312-4334-2014-4-04

K. V. Tiutierieva Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
Klavdia A. Kotvitskaya Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, UkraineUkrainian State Academy of Railway Transport Feyerbaha Sq. 7, 61050 Kharkiv, Ukraine https://orcid.org/0000-0001-6629-5102
A. N. Sokolov Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
N. R. Vovk Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
R. V. Vovk Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, UkraineUkrainian State Academy of Railway Transport Feyerbaha Sq. 7, 61050 Kharkiv, Ukraine

DOI: https://doi.org/10.26565/2312-4334-2014-4-04

Abstract

The e ect of high hydrostatic pressures of up to 10 kbar on the basal ab-plane conductivity of YBa2Cu3O7−δ single crystals with unidirectional twin boundaries is investigated. We show that application of a high pressure leads to a substantial decrease of the pressure derivative of the coherence length dξc/dP while increasing dTc/dP and a temperature shift of the 2D-3D crossover point.
Possible mechanisms of the influence of high pressure on the critical temperature and the coherence length are discussed within the frames of a model assuming the presence of singularities in the charge carriers electron spectrum typical for lattices with strong coupling. The excess conductivity Δσ (T) in YBa2Cu3O7−δ has been revealed to obey an exponential dependence in the wide temperature range Tc<T <T*. At this, the description of the excess conductivity by the expression Δσ ~ (1 − T/T*) exp(Δ*ab/T ) can be interpreted in terms of the mean-field theory, where T* is the mean-field superconducting transition temperature and the pseudogap temperature dependence is satisfactory described within the framework of the BCS-BEC crossover theory. An increase of the applied pressure leads to a narrowing of the temperature range of the realization of the pseudogap regime, thereby expanding the linear temperature dependence of the ab-plane resistivity ρ(T).

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Author Biography

R. V. Vovk, Physics Department, V. Karazin Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, UkraineUkrainian State Academy of Railway Transport Feyerbaha Sq. 7, 61050 Kharkiv, Ukraine

r.v.vovk@mail.ru

References

Ashkenazi J., Supercond J. A theory for the high-Tc cuprates: Anomalous normal- state and spectroscopic properties, phase

diagram, and pairing // Nov. Magn. – 2011. – Vol.24. -P. 1281.

Solovjov A.L., Tkachenko M.A., Vovk R.V., Chroneos A. Fluctuation conductivity and pseudogap in single crystals under pressure with transport current flowing under an angle 45° to the twin boundaries // Physica – 2014. – Vol.501. –P. 24-31.

Vovk R.V., Khadzhai G.Ya., Goulatis I.L., Chroneos A. Fluctuation conductivity of oxygen underdoped YBa2Cu3O7-δ single crystals // Physica B – 2014. - Vol. 436. - P. 88–90.

Sadewasser S., Schilling J.S., Paulicas A.P., Veal B.M. Pressure dependence of Tc to 17 GPa with and without relaxation effects in superconducting YBa2Cu3Ox // Phys. Rev. B - 2000. –Vol.61. - No.1. - Р.741-749.

Vovk R. V., Khadzhai G.Ya., Nazyrov Z. F., Goulatis I. L., Chroneos A. Relaxation of the normal electrical resistivity induced by high-pressure in strongly underdoped YBa2Cu3O7-δ single crystals// Physica B – 2012. – Vol.407. - P.4470.

Mendonca Ferreira L., Pureur P., Borges H. A., Lejay P. Effects of pressure on the fluctuation conductivity of YBa2Cu3O7 // Phys. Rev. B – 2004. - Vol.69. - 212505.

Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Bondarenko A.V., Goulatis I.L., Samoilov A.V., Chroneos A.I. Effect of high pressure on the fluctuation conductivity and the charge transfer of YBa2Cu3O7-δ // J. Alloys and Compounds -2008. – Vol.453. -No. 1-2. - P. 69-74.

Wu M.K., Ashburn J.R., Torng C.J., Hor P.H., Meng R.L., Gao L., Huang Z.J., Wang Y.Q., Chu C.W. Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure // Phys. Rev. Lett. – 1987. - Vol.58. – P. 908–910.

Vovk R.V., Zavgorodniy A.A., Obolenskii M.A., Goulatis I.L., Chroneos A., Pinto Simoes V.M. Effect of high pressure on the metal-dielectric transition and the pseudo-gap temperature range in oxygen deficient YBa2Cu3O7−δ single crystals //Journal of Materials Science: Materials in Electronics. – 2011. - Vol.22. – No.1. – P.20-24.

Lotnyk D.A., Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Kováč J., Kaňuchová M., Šefciková M., Antal V., Diko P., Feher A., Chroneos A. Evolution of the Fishtail-effect in pure and Ag-doped MG-YBCO //Journal of Low Temperature Physics. - 2010. - Vol.161. - No.3-4. - P.387-394.

Schleger P., Hardy W., Yang B. Thermodynamics of oxygen in YBa2Cu3Ox between 450°C and 650°C // Physica C. – 1991. - Vol.176. - P.261-273.

Vovk R.V., Vovk N.R., Shekhovtsov O.V., Goulatis I.L., Chroneos A. c -axis hopping conductivity in heavily Pr-doped YBCO single crystals // Supercond. Sci. Technol. – 2013. – Vol.26. - No. 8. – P.085017.

Presland M.R., Tallon J.L., Buckley R.G., Liu R.S., Flower N.D. General trends in oxygen stoichiometry effects on Tc in Bi and Tl superconductors // Physica С. – 1991. - Vol.176. – P.95-105.

Vovk R.V., Vovk N.R., Khadzhai G.Ya., Dobrovolskiy O.V., Nazyrov Z.F. Evolution of the electrical resistance of YBa2Cu3O7−δ single crystals in the course of long-term aging // J. Mater. Sci: Mater. Electron. – 2014. – Vol.25. –P. 5226-5230.

Lutgemeier H., Schmenn S., Meuffels P., Storz O., Schollhorn R., Niedermayer C., Heinmaa I., Baikov Y. A different type of oxygen order in RE Ba2Cu3O(6+x) HTc superconductors with different RE ionic radii // Physica C. - 1996. - Vol.267. - Р.191-203.

Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Goulatis I.L., Beletskii V.I., Chroneos A. Structural relaxation, metal- toinsulator transition and pseudo-gap in oxygen deficient HoBa2Cu3O7-δ // Physica C. – 2009. – Vol.469. - P. 203-206.

Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Goulatis I.L., Chroneos A.I., Pinto Simoes V.M. Incoherent transport and pseudo-gap in HoBa2Cu3O7−δ single crystals with different oxygen content // J. Mater. Sci: Mater. in Electron. – 2009. - Vol.20. – P.858-860.

Ginsberg D.M. Physical Properties of High-Temperature Superconductors I. - Word Scientific, 1989.

Chroneos A., Goulatis I.L., Vovk R.V. Atomic scale models for RBa2Cu3O6.5 and R1-xPrxBa2Cu3O6.5 compounds (R=Y and lanthanides) // Acta Chim. Slov. - 2007. - Vol.54. - P. 179-184.

Vovk R.V., Vovk N.R., Khadzhai G.Ya., Goulatis I.L., Chroneos A. Effect of praseodymium on the electrical resistance of YBaCuo single crystals // Sol. State Commun. – 2014. - Vol.190. - P. 18–22.

Vovk R.V., Khadzhai G.Ya., Dobrovolskiy O.V. Transverse conductivity in PryY1-yBa2Cu3O7-δ single crystals in a wide range of praseodymium concentrations // Appl. Phys. A – 2014. – Vol.117. – P.997-1002.

Bondarenko A.V., Prodan A.A., Obolenskii M.A., Vovk R.V., Arouri T.R. Anisotropy of the flux creep in the motion of vortices along twin-boundary planes in YBa2Cu3O7−x single crystals // Low Temperature Physics. - 2001. – Vol.27. – No.5. - P.339-344.

Vovk R.V., Vovk N.R., Khadzhai G.Ya., Dobrovolskiy O.V., Nazyrov Z.F. Effect of high pressure on the fluctuation paraconductivity in Y0.95Pr0.05Ba2Cu3O7-δ single crystals // Curr. Appl. Phys. – 2014. – Vol.14. – P.1779-1782.

Belyaeva A.I., Vojtsenya S.V., Yuriyev V.P., Obolenskii M., Bondarenko A. Twin boundaries role in superconducting properties formation of single crystals YBa2Cu3O7-x // Solid State Commun. – 1993. – Vol.85. – No.5. – P.427–430.

Bondarenko A.V., Shklovskij V.A., Vovk R.V., Obolenskii M.A., Prodan A.A. Pinning and dynamics of magnetic flux in YBaCuO single crystals for vortex motion along twin boundaries // Low Temp. Phys. - 1997. – Vol.23. - P.962-967.

Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Nazyrov Z.F., Goulatis I.L., Kruglyak V.V., Chroneos A. Influence of longitudinal magnetic field on the fluctuation conductivity in slightly al-doped YBa2Cu3O7-δ single crystals with a given topology of plane defects //Modern Physics Letters B. - 2011. - Vol.25. - P. 2131-2136.

Vovk R.V., Vovk N.R., Dobrovolskiy O.V. Aging Effect on Electrical Conductivity of Pure and Al-Doped YBa2Cu3O7−δ Single Crystals with a Given Topology of Planar Defects // Hindawi Publishing Corporation Advances in Condensed Matter Physics.- Vol.1 No.4 2014 K.V. Tiutierieva, K.A. Kotvitskaya et al 2013. - Vol.2013, Article ID 931726.

Sadovskii M.V., Nekrasov I.A., Kuchinskii E.Z., Pruschke Th., Anisimov V.I. Pseudogaps in strongly correlated metals: a generalized dynamical mean-field theory approach // Phys. Rev. B - 2005. - Vol.72. - Article ID 155105.

Vovk R.V., Obolenskii M.A., Zavgorodniy A.A., Goulatis I.L., Chroneos A., Biletskiy Е.V. Resistive investigation of pseudogap state in non-stoichiometric ReBa2Cu3O7-δ (Re=Y, Ho) single crystals with due account for BCS - BEC crossover // J. Alloys Compd. – 2009. – Vol.485. - P.121-123.

Vovk R. V., Vovk N. R., Samoilov A.V., Goulatis I. L., Chroneos A. Effect of long aging on the resistivity properties of optimally doped YBa2Cu3O7-δ single crystals // Solid State Commun. – 2013. – Vol.170. – P.6-9.

Widdera K., Bernera D., Geserich H.P., Widderb W., Braunb H.F. Optical investigation of the metal-insulator transition in NdBa2Cu3Ox: A comparison with YBa2Cu3Ox // Physica C. - 1995. – Vol.251. – No.3–4. – P.274–278.

Vovk R.V., Nazyrov Z.F., Goulatis I.L., Chroneos A. Metal- to-insulator transition in Y1-xPrxBa2Cu3O7-δ single crystals with various praseodymium contents // Physica. – 2013. – Vol.485. - P.89-91.

Obolenskii M.A., Bondarenko A.V., Beletskii V.I. Sintez i fizicheskie svoistva monokristallov YBa2Cu3O7 // FNT. – 1990. – T.16. – No.9. – S.574.

Balla D.D., Bondarenko A.V., Vovk R.V., Obolenskii M.A., Prodan A.A., Effect of hydrostatic pressure on the resistance and critical temperature of YBa2Cu3O7-δ single crystals // Low Temp. Phys. – 1997. –Vol.23. – P.777.

McMillan W. L. Transition Temperature of Strong-Coupled Superconductors //Phys. Rev. - 1968. – Vol.167. – P. 331.

Obolenskiy M.A., Balla D.D., Zavgorodniy A.A., Vovk R.V., Nazyrov Z.F., Goulatis I.L., Januszczyk M., Latosińska J.N. Compression Changes in Electrical Resistance and Critical Temperature of Nb1−xSe2Snx Single Crystals // Acta Physica Polonica A. – 2012. -Vol.122. – No.1. - P.1111-1113.

Obolenskii M. A., Bondarenko A.V., Vovk R. V., Prodan A.A. Resistive relaxation processes in oxygen-deficient single crystals of YBa2Cu3O7−δ // Low Temp. Phys. – 1997. – Vol.23. – P.882.

Vovk R.V., Nazyrov Z.F., Obolenskii M.A., Goulatis I.L., Chroneos A., Simoes V.M. Phase separation in oxygen deficient HoBa2Cu3O7-δ single crystals: effect of high pressure and twin boundaries // Philosophical Magazine. – 2011. – Vol.91. – No.17. – P.2291.

Tallon J.L., Berbhard C., Shaked H., Hitterman R.L., Jorgensen J.D. Generic superconducting phase behavior in high-Tc cuprates: Tc variation with hole concentration in YBa2Cu3O7−δ // Phys. Rev. B. – 1995. - Vol. 51. - 12911.

Griessen R. Pressure dependence of high-Tc superconductors // Phys.Rev.B. – 1987. - Vol.36. - P.5284-5290.

Babaev E., Kleinert H. Nonperturbative XY-model approach to strong coupling superconductivity in two and three dimensions // Phys. Rev. B. - 1999. – Vol.59. - P.12083.

Vovk R.V., Obolenskiy M.A., Zavgorodniy A.A., Lotnyk D.A., Kotvitskaya K.A. Temperature dependence of the pseudogap in aluminum and praseodymium-doped YBa2Cu3O7−δ single crystals // Physica B. – 2009. - Vol.404. – P.3516.

Vovk R. V., Zavgorodniy A. A., Obolenskii M. A., Goulatis I. L., Chroneos A., Pinto Simoes V. M. Influence of high pressure on the temperature-dependence of the pseudo-gap in oxygen deficient YBa2Cu3O7−δ single crystals // Modern Physics Letters B. - 2010. -Vol.24. – No.22. - P. 2295-2301.

Lawrence W.E., Doniach S. Theory of layer structure superconductors // Proceedings of the 12th International Conference on Low Temperature Physics. - Kyoto, Japan. Edited by E. Kanda (Keigaku, Tokyo). – 1970. - P.361.

Aslamazov L.G., Larkin A.I. Vliyanie fluktuatsii na svoistva sverkhprovodnikov pri temperaturakh vyshe kriticheskoi // FTT. – 1968. – T.10. – No.4. – S.1104.

Friedman T.A., Rice J.P., Giapintzakis J., Ginzberg D.M. In-plane paraconductivity in a single crystal of superconducting YBa2Cu3O7-x // Phys. Rev. B. – 1989. - Vol.39. – P.4258.

Chryssikos G. D., Kamitsos E. I., Kapoutsis J. A., Patsis A. P., Psycharis V., Kafoudakis A., Mitros C., Kallias G., Gamari-Seale E., Niarchos D. X- ray diffraction and infrared investigation of RBa2Cu3O7 and R0.5Pr0.5Ba2Cu3O7 compounds (RY and lanthanides) // Physica C. – 1995. – Vol.254. – No.1-2. – P.44.

Vovk R.V., Obolenskii M.A., Nazyrov Z.F., Goulatis I.L., Chroneos A., Pinto Simoes V.M. Electro-transport and structure of 1-2-3 HTSC single crystals with different plane defects topologies // J. Mater. Sci. – 2012. – Vol.23. – P.1255.

Vovk R.V., Vovk N.R., Khadzhai G.Ya., Goulatis I.L., Chroneos A. Effect of high pressure on the electrical resistivity of optimally doped YBa2Cu3O7−δ single crystals with unidirectional planar defects // Physica B. – 2013. - Vol.422. - P.33–35.

Smith D.H.S., Vovk R.V., Williams C.D.H., and Wyatt A.F.G. Pressure dependence of phonon interactions in liquid He4 // Phys. Rev. B. -2005. -Vol. 72. – No.5. - 054506 (1-7).

Vovk R.V., Williams C.D.H., Wyatt A.F.G. High-energy phonon pulses in liquid 4He // Phys. Rev. B. – 2004. - Vol.69. – P.144524.

Smith D.H.S., Vovk R.V., Williams C.D.H., Wyatt A.F.G. Interactions between phonon sheets in superfluid helium // New Journal of Physics. -2006. -Vol.8. – No.8. - Р. 128 (1-19).