Citation
Mk. Wu et al., Novel magnetism and superconductivity in a Ru-based double perovskite, INT J MOD B, 13(29-31), 1999, pp. 3585-3590
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792
→ ACNP
Volume
13
Issue
29-31
Year of publication
1999
Pages
3585 - 3590
Database
ISI
SICI code
0217-9792(199912)13:29-31<3585:NMASIA>2.0.ZU;2-L
Abstract
We report the observations, using magnetic susceptibility and specific heat
measurements, of the coexistence of superconductivity and magnetic orderin
g at low temperatures in the Cu-doping double perovskites Sr(2)ARu(1-x)Cu(x
)O(6), with A = Y or Ho, and x < 0.2. The observed striking features can be
understood in terms of a plausible theoretical model based on the double e
xchange mechanism, which occurs indirectly via Ru5+ spin coupling to itiner
ant electrons hopping from one Ru site to another.