Title :
Spin hall magnetoresistance in CoFe2O4/Pt films
Author :
Wu, H. ; Zhang, Q. ; Wan, C. ; Ali, S. ; You, L. ; Wang, J. ; Choi, Y. ; Han, X.
Author_Institution :
State Key Lab. of Magn., Inst. of Phys., Beijing, China
Abstract :
This study aims to measure the spin Hall magnetoresistance combined with ordinary magnetoresistance of CoFe2O4/Pt films at room temperature. The CoFe2O4 thin film is produced by pulsed laser deposition and magnetron sputtering on MgO(001) substrate. X-ray absorption spectra and magnetic circular dichroism are used for characterization. Cross-section TEM confirmed that the CoFe2O4 film crystal epitaxially grew along the (001) direction, and field dependence of magnetization and transport measurement confirmed its ferrimagnetism and insulation. Results demonstrate the universality of spin Hall magnetoresistance effect and the utility in spintronics of CoFe2O4 as a new type of magnetic insulator.
Keywords :
X-ray absorption spectra; cobalt compounds; ferrimagnetic materials; insulating thin films; interface magnetism; magnetic circular dichroism; magnetic thin films; magnetisation; magnetoelectronics; magnetoresistance; metal-insulator boundaries; platinum; pulsed laser deposition; spin Hall effect; sputter deposition; transmission electron microscopy; CoFe2O4-Pt; MgO; X-ray absorption spectra; cross-section TEM; ferrimagnetism; magnetic circular dichroism; magnetic insulator; magnetization; magnetron sputtering; pulsed laser deposition; spin Hall magnetoresistance; spintronics; temperature 293 K to 298 K; thin film; transport measurement; Films; Hall effect; Magnetic hysteresis; Magnetization; Magnetoresistance; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157176
