We systematically investigate the effect of doping on the temperature dependence of the c-axis resistivity in Bi2Sr2CaCu2O8+delta. We present simultaneous measurements of the resistivity tensor components rho(c) and rho(ab) at different doping from the underdoped to the overdoped regime. The c-axis resistivity behaviors as a function of temperature are interpreted, in the normal state (T>T*), through a single phenomenological model based on the existence of two energy barriers with different heights and widths. Two complementary processes are considered for each barrier: incoherent tunneling and thermal activation. The resistive measurements at different doping are well fitted with a small number of free parameters with well defined physical meanings. The analysis of the behaviors of the fitting parameters as a function of doping gives support and consistency to the two-barrier model.

Giura, M., Fastampa, R., Sarti, S., Silva, E. (2003). Normal-state c-axis transport in Bi2Sr2CaCu2O8+delta: Interlayer tunneling and thermally activated dissipation. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 68(13), 134505-1-134505-7 [10.1103/PhysRevB.68.134505].

Normal-state c-axis transport in Bi2Sr2CaCu2O8+delta: Interlayer tunneling and thermally activated dissipation

SILVA, Enrico
2003-01-01

Abstract

We systematically investigate the effect of doping on the temperature dependence of the c-axis resistivity in Bi2Sr2CaCu2O8+delta. We present simultaneous measurements of the resistivity tensor components rho(c) and rho(ab) at different doping from the underdoped to the overdoped regime. The c-axis resistivity behaviors as a function of temperature are interpreted, in the normal state (T>T*), through a single phenomenological model based on the existence of two energy barriers with different heights and widths. Two complementary processes are considered for each barrier: incoherent tunneling and thermal activation. The resistive measurements at different doping are well fitted with a small number of free parameters with well defined physical meanings. The analysis of the behaviors of the fitting parameters as a function of doping gives support and consistency to the two-barrier model.
2003
Giura, M., Fastampa, R., Sarti, S., Silva, E. (2003). Normal-state c-axis transport in Bi2Sr2CaCu2O8+delta: Interlayer tunneling and thermally activated dissipation. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 68(13), 134505-1-134505-7 [10.1103/PhysRevB.68.134505].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/150024
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