Growth of perpendicularly magnetized thin films on a polymer buffer and voltage-induced change of magnetic anisotropy at the MgO|CoFeB interface
Source abstract
Abstract
We show that perpendicularly magnetized thin films can be grown onto polyimide, a potentially flexible substrate. With polar Kerr magnetometry, we demonstrate that the coercive field of CoFeB thin film can be modulated by applying a back gate voltage. Our proposed multi-layered structure is suitable for surface-sensitive measurements of the voltage-induced change in anisotropy, and could be used to realize flexible spintronics devices.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic properties of thin films · ZnO doping and properties · Physics of Superconductivity and Magnetism
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Osaka University 1 Graduate School of Engineering Science, , Toyonaka, Osaka 560-8531, Japan
National Institute of Advance Industrial Science and Technology (AIST) 2 , Spintronics Research Center, Tsukuba, Ibaraki 305-8568, Japan
Vietnam Academy of Science and Technology (VAST) 3 Institute of Materials Science (IMS), , 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Funding
Im-PACT Program of Council for Science, Technology and Innovation
References (28)
Show source-provided references
1. Electric field-induced modification of magnetism in thin-film ferromagnets10.1126/science.1136629 ↗
2. Induction of coherent magnetization switching in a few atomic layers of FeCo using voltage pulses10.1038/nmat3172 ↗
3. Electric field-induced magnetization reversal in a perpendicular-anisotropy CoFeB-MgO magnetic tunnel junction10.1063/1.4753816 ↗
4. Electric-field-induced ferromagnetic resonance excitation in an ultrathin ferromagnetic metal layer10.1038/nphys2298 ↗
5. Voltage-induced switching in magnetic tunnel junctions with perpendicular magnetic anisotropy10.1088/0022-3727/46/7/074004 ↗
6. Large change in perpendicular magnetic anisotropy induced by an electric field in FePd ultrathin films10.1063/1.3599492 ↗
7. Origin of electric-field-induced modification of magnetocrystalline anisotropy at Fe(001) surfaces: Mechanism of dipole formation from first principles10.1103/PhysRevB.80.172402 ↗
8. First principles study of the electric field effect on magnetization and magnetic anisotropy of FeCo/MgO(001) thin film10.1063/1.3626598 ↗
9. Control of magnetism in Co by an electric field10.1088/0022-3727/46/21/213001 ↗
10. Electric-field effect on coercivity distributions in FePt magneto-electric devices10.1063/1.4774382 ↗
11. Electric-field effects on thickness dependent magnetic anisotropy of sputtered MgO/Co[sub 40]Fe[sub 40]B[sub 20]/Ta structures10.1063/1.3429592 ↗
12. Coercivity change in an FePt thin layer in a Hall device by voltage application10.1063/1.3595318 ↗
13. Magnetoelectric charge trap memory10.1021/nl204114t ↗
14. Voltage-controlled domain wall traps in ferromagnetic nanowires10.1038/nnano.2013.96 ↗
15. Reversible change in the oxidation state and magnetic circular dichroism of Fe driven by an electric field at the FeCo/MgO interface10.1063/1.4802030 ↗
16. Magneto-ionic control of interfacial magnetism10.1038/nmat4134 ↗
17. Electric-field control of magnetism by reversible surface reduction and oxidation reactions10.1103/PhysRevB.87.224411 ↗
18. Electrode processes and in situ magnetic measurements of FePt films in a LiPF6 based electrolyte10.1016/j.electacta.2012.07.055 ↗
19. Influence of the surface chemistry on the electric-field control of the magnetization of ultrathin films10.1103/PhysRevB.86.104434 ↗
20. Electric field induced changes in the coercivity of a thin-film ferromagnet10.1088/0022-3727/44/30/305001 ↗
21. Flexible giant magnetoresistance sensors10.1063/1.117315 ↗
22. Flexible spintronic devices on Kapton10.1063/1.4865201 ↗
23. Effect of cap layer thickness on the perpendicular magnetic anisotropy in top MgO/CoFeB/Ta structures10.1063/1.3621353 ↗
24. Contribution of individual interfaces in the MgO/Co/Pd trilayer to perpendicular magnetic anisotropy upon annealing10.1063/1.4914497 ↗
25. Influence of flexible substrate thickness on static and dynamic magnetic properties of FeCoB thin films10.1088/0022-3727/43/25/255001 ↗
26. Magnetic Anisotropy Modulation in Ta/ CoFeB/ MgO Structure by Electric Fields10.1088/1742-6596/266/1/012092 ↗
27. Influence of an electric field on the spin-reorientation transition in Ni/Cu(100)10.1063/1.4898188 ↗
28. Bending strain-tunable magnetic anisotropy in Co2FeAl Heusler thin film on Kapton®10.1063/1.4893157 ↗