Unusual anomalous Hall effect in the ferrimagnetic GdFeCo alloy
- 15 February 2021
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 118 (7), 071902
- https://doi.org/10.1063/5.0037750
Abstract
We have investigated the anomalous Hall effect (AHE) of a ferrimagnetic GdFeCo film with perpendicular magnetic anisotropy. In the vicinity of magnetization compensation temperature TM, the peak structure or triple loop of the Hall resistance loops is mainly caused by the opposite magnetic moments of the two sublattices of Gd and FeCo, and that can be explained by the mechanism of the two-channel AHE. Furthermore, we demonstrated that the transport properties of the GdFeCo film can be manipulated by ionic liquid gating. When the gate voltage is −4 V, the TM of the GdFeCo film was changed up to 29 K. Our research provides experimental evidence for the design of novel electronic devices.Funding Information
- The National Natural Science Foundation of China (51671099)
- the Natinoal Natural Science Foundation of China (11974149)
- the Open Foundation Project of Jiangsu Key Laboratory of Thin Films (KJS1745)
- the Program for Changjiang Scholars and Innovative Research Team in University (IRT-16R35)
- the Fundamental Research Funds for the Central Universities
This publication has 30 references indexed in Scilit:
- Observation of compact ferrimagnetic skyrmions in DyCo3 filmNanoscale, 2020
- Current-induced magnetization switching in a CoTb amorphous single layerPhysical Review B, 2020
- Spin orbit torques in ferrimagnetic GdFeCo with various compositionsJapanese Journal of Applied Physics, 2019
- Spin-transfer torques for domain wall motion in antiferromagnetically coupled ferrimagnetsNature Electronics, 2019
- Magnetization reversal and inverse exchange bias phenomenon in the ferrimagnetic polycrystalline compoundPhysical Review B, 2018
- Current-driven dynamics and inhibition of the skyrmion Hall effect of ferrimagnetic skyrmions in GdFeCo filmsNature Communications, 2018
- Fast domain wall motion in the vicinity of the angular momentum compensation temperature of ferrimagnetsNature Materials, 2017
- Temperature dependence of spin-orbit torques across the magnetic compensation point in a ferrimagnetic TbCo alloy filmPhysical Review B, 2017
- Temperature dependence of spin-orbit effective fields in Pt/GdFeCo bilayersApplied Physics Letters, 2017
- Time-Resolved Magneto-Optical Kerr Effect of Magnetic Thin Films for Ultrafast Thermal CharacterizationThe Journal of Physical Chemistry Letters, 2016