CERN Accelerating science

Preprint
Report number	cond-mat-9406046 ; IMSC-94-30 ; IP-BBSR-94-28
Title	Temperature dependent gap anisotropy from interlayer tunneling
Author(s)	Muthukumar, V N ; Sardar, M
Publication	1994
Imprint	7 Jun 1994
Number of pages	10
Subject category	Other Fields of Physics
Abstract	A recent experiment by Ma and collaborators shows that the gap anisotropy in {\rm Bi}_2 {\rm Sr}_2 {\rm Ca}_1 {\rm Cu}_2 {\rm O}_{8+x} is strongly temperature dependent. In particular, the superconducting gap along the \Gamma - M direction shows a weaker temperature dependence than the gap along the \Gamma - X direction which decreases rapidly with temperature. We explain this novel feature as a natural consequence of the interlayer tunneling mechanism of superconductivity.