Spin current formation at the graphene/Pt interface for magnetization manipulation in magnetic nanodots

Journal Article · Mon Jul 28 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4891361· OSTI ID:22311206

Shikin, A. M.; Rybkina, A. A.; Rybkin, A. G.; Klimovskikh, I. I. ^[1]; Skirdkov, P. N.; Zvezdin, K. A.; Zvezdin, A. K. ^[2]

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1. Saint Petersburg State University, Ulyanovskaya st. 1, Peterhof, Saint Petersburg 198504 (Russian Federation)
2. A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova st. 38, Moscow 119991 (Russian Federation)

Spin electronic structure of the Graphene/Pt interface has been investigated. A large induced spin-orbit splitting (∼80 meV) of graphene π states with formation of non-degenerated Dirac-cone spin states at the K{sup ¯}-point of the Brillouin zone crossed with spin-polarized Pt 5d states at Fermi level was found. We show that this spin structure can be used as a spin current source in spintronic devices. By theoretical estimations and micromagnetic modeling based on the experimentally observed spin-orbit splitting, we demonstarte that the induced intrinsic magnetic field in such structure might be effectively used for induced remagnetization of the (Ni-Fe)-nanodots arranged atop the interface.

• OSTI ID: 22311206
• Journal Information: Applied Physics Letters, Vol. 105, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
BRILLOUIN ZONES
CURRENTS
ELECTRONIC STRUCTURE
FERMI LEVEL
GRAPHENE
INTERFACES
IRON
L-S COUPLING
MAGNETIC FIELDS
MAGNETIZATION
NANOPARTICLES
NICKEL
PLATINUM
QUANTUM DOTS
SIMULATION
SPIN
SPIN ORIENTATION