Journal
EUROPHYSICS LETTERS
Volume 54, Issue 3, Pages 373-379Publisher
EDP SCIENCES S A
DOI: 10.1209/epl/i2001-00252-0
Keywords
-
Categories
Ask authors/readers for more resources
We describe strongly attractive carriers in cuprates in the framework of a simple quasi one-dimensional Hamiltonian with a local attraction. In contrast with the conventional BCS theory, there are two energy scales, a temperature-independent incoherent gap Delta (p) and a temperature-dependent coherent gap Delta (c) (T) combining into one temperature-dependent global gap Delta = (Delta (2)(p) + Delta (2)(c))(1/2). The temperature dependence of the gap and single-particle (Giaver) tunnelling spectra in cuprates are quantitatively described. Two distinct energy scales observed in Giaver tunnelling and electron-hole reflection experiments are understood and their link with the zero-bias conductance peak and the symmetry of the order parameter is discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available