title: Evolution of morphology in electrodeposited nanocrystalline Co-Ni films by in-situ high magnetic field application.
abstract: The effect of high magnetic fields up to 12 T, applied during electrodeposition process, on the morphology of nanocrystalline CoNi films has been investigated. The magneto-induced dramatic modifications in the morphology were observed by using field-emission scanning electronic microscopy and atomic force microscopy. Along with the increase of magnetic flux density (B), the grain size and the surface roughness of the films increased to reach a maximum value at a field of 9 T. Meanwhile, higher magnetic flux density could improve cobalt atomic percentage in the film due to the impacts of magnetohydrodynamic effect. However, at a high field of 12 T, the paramagnetic force played a predominant role in a decrease of mass transport, resulting in minimum grain size and roughness, even smaller than that of the ordinarily (B=0 T) sample.
authors.affiliation: LISM, Université de Reims Champagne-Ardenne, Reims, France.
authors.forename: Donggang
authors.initials: D
authors.lastname: Li
authors.forename: Alexandra
authors.initials: A
authors.lastname: Levesque
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Franczak
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Jicheng
authors.initials: J
authors.lastname: He
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Chopart