Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session LL04: V: Magnetic Nanostructures
5:00 AM–7:00 AM,
Tuesday, March 21, 2023
Room: Virtual Room 4
Sponsoring
Unit:
GMAG
Chair: Jack Gartside, Imperial College London
Abstract: LL04.00006 : The Effect of Hf Doping on Piezomagnetic Properties of FeCo for Magnetoelectric Heterostructure Devices
6:24 AM–6:36 AM
Presenter:
Peter Finkel
(United States Naval Research Laboratory)
Author:
Peter Finkel
(United States Naval Research Laboratory)
In this work we present the systematic study of sputter-deposited Hf-doped Fe50Co50 alloy thin films with a focus on the correlation between film stress and magnetic softness and find an inflection point from tensile to compressive stress with increasing Hf composition. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) of the (Fe0.5Co0.5)1-xHfx system reveal the magnetic softening is also correlated to emergence of an amorphous phase with reduced grain size for these sputter-deposited films.
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