Full text loading...
Raman spectrum of pristine carbon target and carbon films deposited with electron irradiation energy of 10, 50, and 100 eV. The inset figure shows fitting result of 50 eV irradiation sample from 1100 cm−1 to 1800 cm−1, including original spectrum (blue), fitting result (red), D band, and G band (grey).
The total magnetic moment (in units of 10−3 emu = 10−6 A·m2) without any background subtraction of the plastic foil together with GSEC film (red circle) and without GSEC film (black open square). The measurement was carried out at T = 300 K as a function of magnetic field (1kOe = 106/4π A·m−1) by cycling the field from +10 kOe to −10 kOe and back to +10 kOe.
Unit magnetic moment (emu/g) after subtraction of background magnetic moment for the pristine carbon and carbon film with irradiation energy of 10, 50, and 100 eV. The inset graph shows a smaller field region of the hysteresis loops.
GSEC structure obtained from TEM observation (left side), in which the edge defects and curving of graphene nanocrystallite are labeled by arrows. For clearer recognition, a schematic image is drawn (right side).
The (a) saturation magnetization Ms at 300 K, residual magnetism Br at 300 K, (b) average grain size Lα and sp 2 content of pristine carbon and carbon films with different electron irradiation energy.
Magnetization (emu/g) at 300 K of GSEC film and some reported graphene based materials.
Article metrics loading...