ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract At different equilibrium temperatures, a precise measurement of the electrical resistivity (R) is performed for high T c polycrystalline YBa2Cu3O7−y systems. T 2 law is applied in the part of the R-T relationship far above the superconducting transition temperature. Since Landau and Pomeranchuk predicted the T 2 law arising from electron-electron scattering, a higher critical temperature of T 2 law is defined as a start point (T es) of electron-electron scattering. On the other hand, we defined a lower critical temperature of T 2 law as the formation temperature (T ee) of an electron-electron pair, i.e. the formation temperature of boson. T ee relates to the offset temperature of the superconducting transition $$({\rm T}_{{\text{C}}_{{\text{off}}} } )$$ .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00544176
Permalink