Contact-induced spin polarization in BNNT(CNT)/TM (TM=Co, Ni) nanocomposites

Journal Article · Thu Aug 28 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4894157· OSTI ID:22314355

Kuzubov, Alexander A. ^[1]; Avramov, Paul; Kuklin, Artem V.; Mikhaleva, Natalya S.; Tomilin, Felix N. ^[1]; Sakai, Seiji; Entani, Shiro; Matsumoto, Yoshihiro; Naramoto, Hiroshi ^[2]

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1. Siberian Federal University, Krasnoyarsk 660041 (Russian Federation)
2. Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195 (Japan)

The interaction between carbon and BN nanotubes (NT) and transition metal Co and Ni supports was studied using electronic structure calculations. Several configurations of interfaces were considered, and the most stable ones were used for electronic structure analysis. All NT/Co interfaces were found to be more energetically favorable than NT/Ni, and conductive carbon nanotubes demonstrate slightly stronger bonding than semiconducting ones. The presence of contact-induced spin polarization was established for all nanocomposites. It was found that the contact-induced polarization of BNNT leads to the appearance of local conductivity in the vicinity of the interface while the rest of the nanotube lattice remains to be insulating.

• OSTI ID: 22314355
• Journal Information: Journal of Applied Physics, Vol. 116, Issue 8; 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

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON NANOTUBES
COMPOSITE MATERIALS
CONFIGURATION
ELECTRONIC STRUCTURE
INTERACTIONS
INTERFACES
POLARIZATION
SPIN ORIENTATION
TRANSITION ELEMENTS