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Characterization of magnetomechanical properties in FeGaB thin films
- Source :
- Applied Physics Letters. 113:262401
- Publication Year :
- 2018
- Publisher :
- AIP Publishing, 2018.
-
Abstract
- Layered magnetic/piezoelectric heterostructures have drawn a great amount of interest for their potential use in ultra-sensitive magnetoelectric (ME) sensors, ME antennas, voltage tunable inductors, magnetic tunable resonators, etc. It is critically important to characterize the saturation magnetostriction, piezomagnetic coefficient, ΔE effect, and magnetomechanical coupling factor of magnetic thin films, which determine the performance of these ME devices. In this work, a sensitive system has been developed to measure these magnetomechanical properties, on which several different magnetostrictive thin films on the silicon substrate cantilever were characterized. A 0.015 ppm limit of detection of the magnetostriction tester and a frequency resolution of 0.01 Hz of the ΔE tester have been achieved. After magnetic anneal treatment, a record high piezomagnetic coefficient of 12 ppm/Oe, a giant magnetic field induced Young's modulus change of 153 GPa, and a high effective magnetomechanical coupling factor of 0.84 have been measured in FeGaB thin films.
- Subjects :
- 010302 applied physics
Cantilever
Materials science
Physics and Astronomy (miscellaneous)
Silicon
business.industry
chemistry.chemical_element
Magnetostriction
02 engineering and technology
021001 nanoscience & nanotechnology
Inductor
01 natural sciences
Piezoelectricity
Magnetic field
chemistry
0103 physical sciences
Optoelectronics
Thin film
0210 nano-technology
business
Saturation (magnetic)
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 113
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........cde3f23f6da487dec39f2050c7d43623
- Full Text :
- https://doi.org/10.1063/1.5065486