Magnetic Fe-Co films electroplated in a deep-eutectic-solvent-based plating bath

Abstract

We fabricated Fe-Co films from a deep eutectic solvent (DES)-based plating bath and investigated magnetic properties of the plated films. The plating baths were obtained by stirring the mixture of choline chloride, ethylene glycol, FeCl 2 Á4H 2 O, and CoCl 2 Á6H 2 O. The composition of the plated films depended on the amount of FeCl 2 Á4H 2 O in the plating bath, and Fe content of the films was varied from 0 to 100 at. %. Depending on the Fe content, the saturation magnetization and the coercivity of the films varied. The Fe 76 Co 24 film shows high saturation magnetization and smooth surface, and the change in the saturation magnetization shows good agreement with the expected change by the Slater-Pauling curve. High current efficiency (>90%) could be obtained in the wide film composition. From these results, we concluded that the DES-based plating bath is one of effective baths for the Fe-Co films with high current efficiency. V C 2015 AIP Publishing LLC.

Electroplated Fe-Co-Ni films prepared from deep-eutectic-solvent-based plating baths

“…[5][6][7][8] We have reported Fe, Fe-Ni and Fe-Co films prepared in DES-based plating baths, and confirmed high current efficiency of the plating process. [9][10][11] As some Fe-Ni-Co films with high saturation magnetization and low coercivity have been reported using aqueous plating baths 12 and sputtering method, 13,14 we also focused on Fe-Ni-Co ternary alloy. In this study, we investigated the structural and the magnetic properties of the Fe-Ni-Co films plated in the DES-based plating bath.…”

Influence Mechanism of (NH4)2SO4 on the Composition and Structure of Fe-Co Alloys

“…Magnetostrictive materials are divided into three main categories: materials containing rare earths, metals and alloys, and ferrite magnetostrictive materials [5,6]. Fe-Co alloys are known for their excellent magnetic flux density and low cost [7][8][9]. Nowadays, the production methods of Fe-Co alloys include both chemical and physical methods.…”

Локальная магнитная анизотропия в наноструктурированных покрытиях FeCo-C, синтезированных методами зеленой химии

“…Пленки с высокой индукцией насыщения и нанокомпозитные покрытия на основе ферромагнетиков являются основой для создания сверхчувствительных магнитных датчиков разнообразного применения, записывающих головок высокоплотной быстродействующей магнитной записи, устройств микроэлектроники, систем защиты от излучения [1][2][3][4][5]. Наноструктурированные сплавы FeСо, характеризующиеся высокими значениями намагниченности насыщения и магнитной проницаемости, могут быть получены различными методами, среди них молекулярно-лучевая эпитаксия, магнетронное распыление, электролитическое осаждение [6][7][8][9]. Перспективным является метод химического осаждения, как не имеющий ограничений по размеру и форме покрываемой поверхности.…”