Graphene edge spins: spintronics and magnetism in graphene nanomeshes
Annotation
We have fabricated low-defect graphene nanomeshes (GNMs) by using a non-lithographic method and observed large-amplitude ferromagnetism even at room temperature, only when pore edges of the GNMs were hydrogenterminated. The observed correlation between the inter-pore spacing and magnetism and also magnetic force microscope observations suggest that it is attributed to polarzied electron spins localized at the zigzag-type atomic structured pore-edges. The magnetic moment per edge dangling bond (∼0.3 µB) is also in quantitative agreement with two theories. Moreover, a spin pumping effect is found for fields applied in parallel with the GNM planes in few-layer ferromagnetic GNMs, while a magnetoresistance (MR) hysteresis loop is observed under perpendicular fields. The present ferromagnetic GNMs must also realize rare-element free, invisible, flexible, and ultra-light (wearable) magnets and spintronic devices, which can overcome environmental and material-resource problems.
Keywords
Постоянный URL
Articles in current issue
- Synthesis, isolation, and X-ray structural characterization of trifluoromethylated C90 fullerenes: C90(30)(CF3)18 and C90(35)(CF3)14
- Preparation and characterization of a new clustered {С70}n fullerene material
- Fullerene films with suppressed polymerizing ability
- UV-Vis diagnostics of the PMMA - C60 composite system and the kinetics of its thermal decomposition
- Toward paclitaxel-[60]fullerene immunoconjugates as a targeted prodrug against cancer
- Characterization of fullerene derivatives by MALDI LIFT-TOF/TOF mass spectrometry
- Simulation of secondary electron transport in thin metal and fullerite films
- CVD growth of carbon nanotubes with a Ni catalyst in a polyimide trench
- Propagation of femtosecond pulses in carbon nanotubes
- The semi-empirical research of the adsorption of biologically active molecules on the outer surface of carbon nanotubes
- Sensor properties of carboxyl-modifies carbon nanotubes
- Migration processes on the surface of carbon nanotubes with substitute boron atoms
- Utilizing of the medium-energy ion scattering spectrometry for the composition investigation of graphene oxide films on silicon surface
- Investigation of structure and transport properties of graphene grown by low-pressure no flow CVD on polycrystalline Ni films
- Hierarchically porous graphene in natural graphitic globules from silicate magmatic rocks
- The influence of the ambient conditions on the electrical resistance of graphene-like films
- Topological mechanochemistry of graphene
- The electron-phonon matrix element in the Dirac point of graphene
- The adsorption properties of polycrystalline graphene: quantum-chemical simulation
- The evolution of few cycles optical pulses in a double-layer graphene – boron nitride taking into account nonlinearity of a medium
- Nanodiamond-based oil lubricants on steel-steel and stainless steel – hard alloy high load contact: investigation of friction surfaces
- Synergistic influence of fluorine and hydrogen on processes of thermal transformations of carbon-containing systems under high pressures
- Secondary nucleation on nanostructured carbon films in the plasma of direct current glow discharge
- Field electron emission from a nickel-carbon nanocomposite
- Structural changes in industrial glassy carbon as a function of heat treatment temperature according to Raman spectroscopy and X-ray diffraction data
- Carbon encapsulation of magnetic metal nanoparticles: correlation between nanoscale structure of carbon matrix and electromagnetic properties
- Using artificial neural networks for elaboration of fluorescence biosensors on the basis of nanoparticles
- The state-of-the-art science and applications of carbon nanotubes