Spin Hall magnetoresistance of CoFe2O4/Pt heterostructures with interface non-collinear magnetic configurations.

Authors :: Guo, J. Q.
Meng, K. K.
Zhang, T. Z.
Liu, J. J.
Chen, J. K.
Wu, Y.
Xu, X. G.
Jiang, Y.
Source :: Applied Physics Letters; 10/3/2022, Vol. 121 Issue 14, p1-8, 8p
Publication Year :: 2022
Abstract: We have investigated the spin Hall magnetoresistance (SMR) in CoFe<subscript>2</subscript>O<subscript>4</subscript>/Pt heterostructures deposited on (001) MgO and (001) MgAl<subscript>2</subscript>O<subscript>4</subscript> substrates, respectively. It is found that the interface non-collinear magnetic configurations should exist in both of the two films in the whole temperature range from 5 to 300 K but mainly dominate the spin transport properties at low temperature. Furthermore, the spin transport has featured epitaxial-strain-modified characteristics induced by different substrates, which has been investigated by magnetic curves, SMR, anisotropic magnetoresistance, and Hall effect measurements. [ABSTRACT FROM AUTHOR]

Subjects :: ENHANCED magnetoresistance
MAGNETORESISTANCE
HETEROSTRUCTURES
HALL effect
LOW temperatures

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