R. Moreh et al., EFFECTIVE TEMPERATURE OF AMORPHOUS-CARBON STUDIED USING NUCLEAR-RESONANCE PHOTON SCATTERING, Physical review. B, Condensed matter, 56(1), 1997, pp. 187-193
The effective temperature of isotopic amorphous carbon (C-13) was meas
ured, at 295 K, by employing the nuclear resonance photon scattering (
NRPS) technique. The photon beam was in the form of bremsstrahlung obt
ained from an electron beam of the Stuttgart Dynamitron, with E=4.1 Me
V, and the resonance scattering from the 3089-keV and the 3684-keV lev
els in C-13 was measured. The effective temperature of C-13 was found
to be (822+/-123) K, which is higher by about 13% than that calculated
from the experimental vibrational density of states of amorphous carb
on. This deviation is discussed.