Effect of MgO/Co interface and Co/MgO interface on the spin dependent transport in perpendicular Co/Pt multilayers

Journal Article · Tue Oct 28 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4900193· OSTI ID:22308162

Zhang, J. Y.; Liu, Y. W.; Zhao, Z. D.; Chen, X.; Feng, C.; Yang, G. ^[1]; Wu, Z. L. ^[2]; Zhang, S. L. ^[3]

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1. Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083 (China)
2. Analytical and Testing Center, Beijing Normal University, Beijing 100875 (China)
3. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OXI 3PU (United Kingdom)

Effect of the metal/oxide interface on spin-dependent transport properties in perpendicular [Co/Pt]{sub 3} multilayers was investigated. The saturation Hall resistivity (ρ{sub xy}) is significantly increased by 45% with 1.4 nm thick CoO layer inserted at the top Co/MgO interface; whereas it is increased only 25% with 1 nm thick CoO layer at the bottom MgO/Co interface. The interfacial structures characterized by X-ray photoelectron spectroscopy show that the MgO/Co interface and Co/MgO interface including chemical states play a dominant role on spin-dependent transport, leading to different anomalous Hall behavior.

• OSTI ID: 22308162
• Journal Information: Journal of Applied Physics, Vol. 116, Issue 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHEMICAL STATE
COBALT
COBALT OXIDES
INTERFACES
LAYERS
MAGNESIUM OXIDES
METALS
SATURATION
SPIN
X-RAY PHOTOELECTRON SPECTROSCOPY