Artículos de revistas
Perturbing the superconducting planes in CeCoIn5 by Sn substitution
Registro en:
Physical Review Letters. American Physical Soc, v. 95, n. 1, 2005.
0031-9007
WOS:000230275500053
10.1103/PhysRevLett.95.016406
Autor
Daniel, M
Bauer, ED
Han, SW
Booth, CH
Cornelius, AL
Pagliuso, PG
Sarrao, JL
Institución
Resumen
In contrast to substitution on the Co or Ce site, Sn substitution has a remarkably strong effect on superconductivity in CeCoIn5-xSnx, with T-c -> 0 beyond only similar to 3.6% Sn. Instead of being randomly distributed on in-plane and out-of-plane In sites, extended x-ray absorption fine structure measurements show the Sn atoms preferentially substitute within the Ce-In plane. This result highlights the importance of the In(1) site to impurity scattering and clearly demonstrates the two-dimensional nature of superconductivity in CeCoIn5. 95 1