Magnetostriction in electroplated CoFe alloys

Berna Özkale; Naveen Shamsudhin; Titus Bugmann; Bradley J. Nelson; Salvador Pané

doi:10.1016/j.elecom.2017.01.007

Magnetostriction in electroplated CoFe alloys

Berna Özkale, Naveen Shamsudhin, Titus Bugmann, Bradley J. Nelson, Salvador Pané

ETH Zurich

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The phenomenon of magnetostriction can wirelessly couple external magnetic fields to generate structural motion. This is an attractive solution for remote delivery of power to microactuators in constrained environments. This study discusses the magnetostriction of electrosynthesized CoFe thin film microactuators. Electrodeposition is commonly employed for the fabrication of metallic thin films, however the magnetostriction of such films has been rarely investigated. In particular, the magnetostrictive behavior of electroplated CoFe films is poorly understood, despite the high magnetostriction capabilities of CoFe alloys. In this work, uniformly thick and smooth Co_0.65Fe_0.35 thin films were electrochemically grown on commercially available micron-scale cantilevers. The CoFe thin films were characterized for their morphology, composition, crystal structure, and magnetic properties. The AC magnetostrictive response of the cantilevers was measured interferometrically and the actuator exhibited a maximum expected displacement of 86 nm.

Original language	English
Pages (from-to)	15-19
Number of pages	5
Journal	Electrochemistry Communications
Volume	76
DOIs	https://doi.org/10.1016/j.elecom.2017.01.007
State	Published - 1 Mar 2017
Externally published	Yes

Keywords

CoFe thin films
Electrodeposition
Magnetostriction
Microactuator

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10.1016/j.elecom.2017.01.007

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title = "Magnetostriction in electroplated CoFe alloys",

abstract = "The phenomenon of magnetostriction can wirelessly couple external magnetic fields to generate structural motion. This is an attractive solution for remote delivery of power to microactuators in constrained environments. This study discusses the magnetostriction of electrosynthesized CoFe thin film microactuators. Electrodeposition is commonly employed for the fabrication of metallic thin films, however the magnetostriction of such films has been rarely investigated. In particular, the magnetostrictive behavior of electroplated CoFe films is poorly understood, despite the high magnetostriction capabilities of CoFe alloys. In this work, uniformly thick and smooth Co0.65Fe0.35 thin films were electrochemically grown on commercially available micron-scale cantilevers. The CoFe thin films were characterized for their morphology, composition, crystal structure, and magnetic properties. The AC magnetostrictive response of the cantilevers was measured interferometrically and the actuator exhibited a maximum expected displacement of 86 nm.",

keywords = "CoFe thin films, Electrodeposition, Magnetostriction, Microactuator",

author = "Berna {\"O}zkale and Naveen Shamsudhin and Titus Bugmann and Nelson, {Bradley J.} and Salvador Pan{\'e}",

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AU - Özkale, Berna

AU - Shamsudhin, Naveen

AU - Bugmann, Titus

AU - Nelson, Bradley J.

AU - Pané, Salvador

PY - 2017/3/1

Y1 - 2017/3/1

N2 - The phenomenon of magnetostriction can wirelessly couple external magnetic fields to generate structural motion. This is an attractive solution for remote delivery of power to microactuators in constrained environments. This study discusses the magnetostriction of electrosynthesized CoFe thin film microactuators. Electrodeposition is commonly employed for the fabrication of metallic thin films, however the magnetostriction of such films has been rarely investigated. In particular, the magnetostrictive behavior of electroplated CoFe films is poorly understood, despite the high magnetostriction capabilities of CoFe alloys. In this work, uniformly thick and smooth Co0.65Fe0.35 thin films were electrochemically grown on commercially available micron-scale cantilevers. The CoFe thin films were characterized for their morphology, composition, crystal structure, and magnetic properties. The AC magnetostrictive response of the cantilevers was measured interferometrically and the actuator exhibited a maximum expected displacement of 86 nm.

AB - The phenomenon of magnetostriction can wirelessly couple external magnetic fields to generate structural motion. This is an attractive solution for remote delivery of power to microactuators in constrained environments. This study discusses the magnetostriction of electrosynthesized CoFe thin film microactuators. Electrodeposition is commonly employed for the fabrication of metallic thin films, however the magnetostriction of such films has been rarely investigated. In particular, the magnetostrictive behavior of electroplated CoFe films is poorly understood, despite the high magnetostriction capabilities of CoFe alloys. In this work, uniformly thick and smooth Co0.65Fe0.35 thin films were electrochemically grown on commercially available micron-scale cantilevers. The CoFe thin films were characterized for their morphology, composition, crystal structure, and magnetic properties. The AC magnetostrictive response of the cantilevers was measured interferometrically and the actuator exhibited a maximum expected displacement of 86 nm.

KW - CoFe thin films

KW - Electrodeposition

KW - Magnetostriction

KW - Microactuator

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Magnetostriction in electroplated CoFe alloys

Abstract

Keywords

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