Access the full text.
Sign up today, get DeepDyve free for 14 days.
Lee, Klemm, Johnston (1989)
Superconducting fluctuation diamagnetism above Tc in YBa1Cu3O7, La1.8Sr0.2CuO4, and Bi2-xPbxSr2CaCu2O8+ delta.Physical review letters, 63 9
S. Salem-Sugui, E. Silva (1994)
Evidence for vortex fluctuations in YBa2Cu3O7−δPhysica C-superconductivity and Its Applications, 235
Hou, Deák, Metcalf, McElfresh (1994)
Effect of oxygen stoichiometry on the vortex-glass phase transition in YBa2Cu3O7- delta thin films.Physical review. B, Condensed matter, 50 10
(1991)
Phys Rev
S. Salem-Sugui, A. Alvarenga, K. Goretta, V. Vieira, B. Veal, A. Paulikas (2005)
A Comparative Study of High-Field Diamagnetic Fluctuations in Deoxygenated YBa2Cu3O7-x and Polycrystalline (Bi–Pb)2Sr2Ca2Cu3O10Journal of Low Temperature Physics, 141
L. Bulaevskii, M. Ledvij, V. Kogan (1992)
Fluctuations of vortices in layered high-Tc superconductors.Physical review letters, 68 25
(1992)
Phys
L. Glazman, A. Koshelev (1991)
Thermal fluctuations and phase transitions in the vortex state of a layered superconductor.Physical review. B, Condensed matter, 43 4
U. Welp, S. Fleshler, W. Kwok, R. Klemm, V. Vinokur, J. Downey, B. Veal, G. Crabtree (1991)
High-field scaling behavior of thermodynamic and transport quantities of YBa2Cu3O7- delta near the superconducting transition.Physical review letters, 67 22
S. Salem-Sugui, Jr., M. Friesen, A. Alvarenga, F. Gandra, M. Doria, O. Schilling (2002)
Experimental observation of high-field diamagnetic fluctuations in niobiumPhysical Review B, 66
B. Veal, A. Paulikas, H. You, H. Shi, Y. Fang, J. Downey (1990)
Observation of temperature-dependent site disorder in YBa 2 Cu 3 O 7-δ below 150 °CPhysical Review B, 42
(1997)
Shi Li
B. Rosenstein, B. Shapiro, R. Prozorov, A. Shaulov, Y. Yeshurun (2001)
Fluctuations in single-crystal YBa 2 Cu 3 O 6.5 : Evidence for crossover from two-dimensional to three-dimensional behaviorPhysical Review B, 63
R. Klemm, M. Beasley, A. Luther (1973)
Fluctuation-Induced Diamagnetism in Dirty Three-Dimensional, Two-Dimensional, and Layered SuperconductorsPhysical Review B, 8
(1997)
3D XY and Lowest Landau Level Fluctuations in Deoxygenated YBa 2 Cu 3 O 7 − δ Thin Films
E. Silva, S. Salem-Sugui (1996)
Superconducting vortex fluctuations in YBa2Cu3O7-δPhysica C-superconductivity and Its Applications, 257
S. Salem-Sugui, E. Silva (1994)
Superconducting diamagnetic fluctuations for H ∥ ab planes in YBa2Cu3O7−δ for fields up to 5 TSolid State Communications, 90
Tesanovic, Xing, Bulaevskii, Qiang Li, Suenaga (1992)
Critical fluctuations in the thermodynamics of quasi-two-dimensional type-II supeconductors.Physical review letters, 69 24
Z. Tes̆anović, Anton Andreev (1994)
Thermodynamic scaling functions in the critical region of type-II superconductors.Physical review. B, Condensed matter, 49 6
(2001)
Shapiro
V. Gomis, I. Catalán, B. Martínez, A. Gou, X. Obradors, J. Fontcuberta (1994)
Vortex fluctuations effects in the 2D system YBa2Cu3O6.6Physica C-superconductivity and Its Applications
Salman Ullah, A. Dorsey (1990)
Critical fluctuations in high-temperature superconductors and the Ettingshausen effect.Physical review letters, 65 16
R. Gerhardts (1974)
Precursor diamagnetism in layered and isotropic superconductorsPhysical Review B, 9
(1994)
Physica C 325-240
We have studied the field-induced dimensional crossover in the fluctuation magnetization of three single crystals of YBa2Cu3O7-x, with superconducting transition temperatures, Tc = 62.5, 52, and 41 K. The dimensional crossover is observed by studying the diamagnetic vortex fluctuations of the lowest-Landau-level type which occur in isochamps magnetization curves, MvsT, for temperatures close to the transition temperature Tc(H). The study was accomplished by obtaining isochamps magnetization curves as a function of temperature for fields in the range of 0.1–5 T. Magnetization curves for each sample when plotted together show two distinct well resolved crossing points, one formed by low field curves and located at a higher temperature than the other formed by high field curves. A lowest-Landau-level scaling analysis is applied to the curves forming the crossing points and it is verified that lower field curves obey the three-dimensional form of this scaling while the higher field curves obey the two-dimensional form. The results allow to observe the evolution of the dimensional crossover field Hcross, 3D–2D, with the content of oxygen in YBa2Cu3O7-x. It is observed that the evolution of the field Hcross with the content of oxygen in each sample qualitatively agrees with theoretical predictions and allow us to estimate the ratio of the anisotropy among the studied samples.
Journal of Low Temperature Physics – Springer Journals
Published: Sep 27, 2006
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.