Atomic, electronic and magnetic structure of graphene/iron and nickel interfaces: theory and experiment

Title
Atomic, electronic and magnetic structure of graphene/iron and nickel interfaces: theory and experiment
Author
Bukhvalov Danil
Keywords
CHEMICAL-VAPOR-DEPOSITION; FILLED CARBON NANOTUBES; LARGE-AREA; DOPED GRAPHENE; LAYER GRAPHENE; NANOPARTICLES; IRON; SPECTRA; SUBSTRATE; EMISSION
Issue Date
2015-04
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v. 5, NO 12, Page. 9173-9179
Abstract
First-principles calculations of the effect of carbon coverage on the atomic, electronic and magnetic structure of nickel and iron substrates demonstrate insignificant changes in the interatomic distances and magnetic moments on the atoms of the metallic substrates. The coverage of the iron surface by mono-and few-layer graphene induces significant changes in the orbital occupancies and exchange interactions between the layers in contrast to the case of a nickel substrate for which changes in the orbital ordering and exchange interactions are much smaller. Experimental measurements demonstrate the presence of ferromagnetic fcc-iron in Fe@C nanoparticles and the superparamagnetic behavior of Ni@C nanoparticles.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C4RA14165B#!divAbstracthttp://hdl.handle.net/20.500.11754/24002
ISSN
2046-2069
DOI
10.1039/c4ra14165b
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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