Effect of rare-earth doping on magnetic softness and magnetization dynamics of Fe-Ga films
Source abstract
Abstract
This paper reports the influence of rare-earth (RE) doping on static and dynamic magnetic properties of 50-nm-thick Fe-Ga films grown on a glass substrate. With the addition of RE elements, the magnetic softness of Fe-Ga films improved at higher RE content, which might be attributed to the induction of in-plane uniaxial anisotropy by RE doping. As for the dynamic properties of Fe-Ga-RE films, an overall increased effective in-plane damping constant (α//,eff) were observed as the increase of RE content, except for a decreased α//,eff from 0.0228 to 0.0151 at low RE contents. These results suggest that the addition of RE could induce tunable magnetic properties in Fe-Ga films, making resultant Fe-Ga-RE films as one of the promising candidates for the sensing applications and high frequency microwave magnetic devices.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Applications · Magnetic properties of thin films · Microstructure and Mechanical Properties of Steels
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Engineering, Tohoku University 1 , Sendai, Miyagi 980-8579,
School of Engineering, Tohoku University 2 , Sendai, Miyagi 980-8579,
Center for Science and Innovation in Spintronics, Tohoku University 3 , Sendai, Miyagi 980-8579,
Funding
X-nics, Tohoku University · CSIS, Tohoku University · Center for Spintronics Research Network, Tohoku University · CIES, Tohoku University · Ministry of Education, Culture, Sports, Science and Technology
References (23)
Show source-provided references
1. Magnetic properties of FeGa/Kapton for flexible electronics10.1038/s41598-022-21589-3 ↗
2. Single crystal Fe1-xGax thin films for monolithic microwave devices10.1063/1.4864741 ↗
3. Micro-magnetostrictive vibrator using iron–gallium alloy10.1016/j.sna.2008.08.017 ↗
4. A review of thin-film magnetoelastic materials for magnetoelectric applications10.3390/s20051532 ↗
5. Characterization of Terfenol-D for magnetostrictive transducers10.1121/1.400678 ↗
6. Magnetostriction, elastic moduli, and coupling factors of composite Terfenol-D10.1063/1.355627 ↗
7. Anomalous temperature dependence of Young's modulus in Fe73Ga27 alloys10.1016/j.jallcom.2017.01.175 ↗
8. Magnetostrictive properties of Body-centered cubic Fe-Ga and Fe-Ga-Al alloys10.1109/20.908752 ↗
9. Extraordinary magnetoelasticity and lattice softening in bcc Fe-Ga alloys10.1063/1.1540130 ↗
10. Combinatorial investigation of magnetostriction in Fe–Ga and Fe–Ga–Al10.1063/1.2980034 ↗
11. Effect of Ga composition on soft and high-frequency magnetic properties of Fe85.1-xGaxB14.9 thin films10.1063/9.0000065 ↗
12. Soft magnetism, magnetostriction, and microwave properties of FeGaB thin films10.1063/1.2804123 ↗
13. Growth and magnetic characterization of epitaxial Fe81Ga19/MgO (100) thin films10.1063/1.1996829 ↗
14. Characterization of magnetomechanical properties in FeGaB thin films10.1063/1.5065486 ↗
15. The origin of large magnetostrictive properties of rare earth doped Fe-Ga as-cast alloys10.1016/j.jmmm.2020.167289 ↗
16. Enhanced magnetostrictive properties of lightly Pr-doped Fe83Ga17 alloys10.1016/j.jre.2019.05.005 ↗
17. Influences of rare earth element Ce-doping and melt-spinning on microstructure and magnetostriction of Fe83Ga17 alloy10.1016/j.jallcom.2015.03.009 ↗
18. Study on the magentostriction and magnetization dynamics of Fe-Ga polycrystalline films10.2320/materia.59.26 ↗
19. Effect of film thickness on the high frequency magnetic properties of polycrystalline Fe–Ga films10.1109/tmag.2017.2703119 ↗
20. Thickness dependence of magnetic and structural properties in Fe80Ga20 thin films10.1063/1.3368107 ↗
21. Structrual characteristics and magnetic properties of La doped Fe-Ga thin films
22. Study on the damping constants of Ni-Fe thin films using different CPW-FMR measurements10.1541/ieejfms.131.505 ↗
23. On the theory of ferromagnetic resonance absorption10.1103/physrev.73.155 ↗