vortex lattice melting temperatures; Bi2212 tapes; Gaussian distribution
Abstract :
[en] The electrical resistivity in the mixed state of Bi2212 tape superconductors can be accurately reconstructed for values below approximately a half of the normal state value of resistivity, assuming a Gaussian distribution for the vortex lattice melting temperatures. The magnetic field dependences of the distribution width and of the dB(c2)/dT parameter were calculated. Moreover the vortex liquid viscosity coefficient was determined between the vortex lattice melting temperature and T-c at various magnetic fields. It is pointed out that the vortex lattice melting transition should not be confused with the irreversibility line of magnetic studies nor with the percolation temperature line for electrical resistivity. (C) 1998 Elsevier Science B,V. All rights reserved.
Disciplines :
Physics
Author, co-author :
Pekala, M.
Bougrine, Hassan ; Université de Liège - ULiège > CARE "Le Réseau des bibliothèques" > Bibliothèque des Sciences et Techniques
Gadomski, W.
Morgan, C. G.
Grovenor, C. R. M.
Cloots, Rudi ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences
Ausloos, Marcel ; Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Language :
English
Title :
Distribution of vortex lattice melting temperatures in mixed state diagram of Bi2212 tapes
Casaca, A., Bonfait, G., Lenkens, M., Müller, G., Lander, K., Edwards, J.A., (1997) Superconductor Science and Technology, 10, p. 75
Nelson, D.R., (1988) Phys. Rev. Lett., 60, p. 1973
Ausloos, M., Bougrine, H., Houssa, M., Pȩkała, M., (1988) Phys. Rev. B, , submitted
Bougrine, H., Houssa, M., Cloots, R., Pȩkała, M., Sargankova, I., Ausloos, M., (1998) Superconductor Science and Technology, 11, p. 128
Pȩkała, M., Bougrine, H.M., Sargankova, I., Ausloos, M., (1997) Proc. of 16th Intern. Conf. on Thermoelectrics, p. 507. , Dresden, 26-29 August 1997, IEEE Inc
Blatter, G., Feigelman, M.V., Geshkenbein, V.B., Larkin, A.I., Vinokur, V.M., (1994) Rev. Modern Phys., 66, p. 1125