Observation of the segregation and the dissolution of the Co and the Cu in CoCu metastable alloys.
Metastable Co(x)Cu100-x(x=5, 10, 15, 20) alloys have been annealed at increasing temperatures in order to study the evolution of the Co cluster and its relation with the magnetotransport properties. The structure was investigated by X-ray Absorption Spectroscopy on the Co K-edge as a function of composition and annealing temperature.  An anomalous trend in the structural evolution has been evidenced and related to the preculiar features observed in the magnetotransport properties.
Fdez-Gubieda
M L
ML
Departamento de Electricidad y Electrónica, Universidad del País Vasco, Bilbao, Spain. malu@we.lc.ehu.es
García Prieto
A
A
García Arribas
A
A
Meneghini
C
C
Mobilio
S
S