TY - JOUR
T1 - Isotope velocity differentiation in thin carbon nanotubes through quantum diffusion
AU - Fedorov, Anton S
AU - Avramov, Pavel V
AU - Ovchinnikov, Sergei G
AU - Kresse, Georg
N1 - Affiliations: Kirenski Institute of Physics, Siberian Branch, Russian Academy of Science, Krasnoyarsk 660036, Russian Federation; Institut für Materialphysik, Universität Wien, Wien, Austria
Adressen: Fedorov, A.S.; Kirenski Institute of Physics; Siberian Branch; Russian Academy of Science Krasnoyarsk 660036, Russian Federation; email: [email protected]
Import aus Scopus: 2-s2.0-0037703806
22.10.2007: Datenanforderung 1935 (Import Sachbearbeiter)
22.10.2007: Datenanforderung 1936 (Import Sachbearbeiter)
PY - 2003
Y1 - 2003
N2 - An approach is proposed to evaluate the average velocities of adsorbate molecules in one-dimensional nanopore, when quantum tunneling between neighboring potential minima leads to nonzero velocity. The approach is used to calculate the hydrogen isotope molecule (H2, D2, T2) velocities in ultrathin carbon single-wall nanotubes (SWNT) (3,3) and (6,0). It is shown that the isotope mass difference leads to large differences of the quantum tunneling value and large differences of the average molecule velocities, especially inside the tube (6,0). It is shown that different tube chirality leads to drastically different velocities of adsorbate molecules, even if the diameters of both nanotubes do not differ significantly.
AB - An approach is proposed to evaluate the average velocities of adsorbate molecules in one-dimensional nanopore, when quantum tunneling between neighboring potential minima leads to nonzero velocity. The approach is used to calculate the hydrogen isotope molecule (H2, D2, T2) velocities in ultrathin carbon single-wall nanotubes (SWNT) (3,3) and (6,0). It is shown that the isotope mass difference leads to large differences of the quantum tunneling value and large differences of the average molecule velocities, especially inside the tube (6,0). It is shown that different tube chirality leads to drastically different velocities of adsorbate molecules, even if the diameters of both nanotubes do not differ significantly.
U2 - 10.1209/epl/i2003-00512-5
DO - 10.1209/epl/i2003-00512-5
M3 - Article
SN - 0295-5075
VL - 63
SP - 254
EP - 260
JO - Europhysics Letters
JF - Europhysics Letters
IS - 2
ER -