Modulation of magnetic and structural properties of cobalt thin films by means of electrodeposition |
| |
Authors: | Jose García-Torres Elvira Gómez Elisa Vallés |
| |
Affiliation: | (1) Electrodep, Departament de Química Física and Institut de Nanociència i Nanotecnologia (IN 2 UB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain |
| |
Abstract: | Cobalt electrodeposits were prepared from an electrolytic bath containing cobalt perchlorate. The effect of different species,
organic (thiourea and sodium gluconate) and inorganic (boric acid), on the crystallographic structure, morphology, magnetic
properties and electrochemical behaviour of cobalt electrodeposits was investigated. Amorphous cobalt, hcp cobalt and a non-usual
primitive cubic cobalt phase were observed depending on the bath composition. Depending on the structure, different morphologies
and magnetic properties were found. Coercivity values of the cobalt coatings ranged from around 15 Oe for amorphous, nodular
deposits to 380 Oe for cobalt coatings showing acicular morphology and hcp structure with a (002) preferred orientation. Knowledge
of the influence of the species on the properties of cobalt makes it possible to obtain tailored cobalt films. |
| |
Keywords: | Cobalt coatings Electrodeposition Magnetic properties Crystal structure |
本文献已被 SpringerLink 等数据库收录! |
|