Citation
Ns. Achsaf et al., ANDREEV REFLECTIONS FROM LA2-XSRXCUO4 SINGLE-CRYSTALS, Journal of low temperature physics, 105(3-4), 1996, pp. 329-334
Citations number
16
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
00222291
Volume
105
Issue
3-4
Year of publication
1996
Pages
329 - 334
Database
ISI
SICI code
0022-2291(1996)105:3-4<329:ARFLS>2.0.ZU;2-A
Abstract
Andreev reflections have been studied at the interface between a gold
tip and La2-xSrxCuO4 (x=0.11,0.12) single crystals, along the (IIO) di
rection, shape of the I(V) characteristic has been analyzed within the
framework of the theory of Tanaka and Kashiwaya, allowing for an anis
otropic order parameter, The data cannot be fitted either to a pure is
otropic s-wave or pure d-wave symmetry, The best fit is obtained for a
n anisotropic gap, with Delta(max)=15 meV and Delta(min)=5 meV.