@article {5009,
	title = {Molecular dynamics study of the collision-induced rotational alignment of N-2(+) drifting in helium},
	journal = {Journal of Chemical Physics},
	volume = {114},
	number = {15},
	year = {2001},
	note = {ISI Document Delivery No.: 418VGTimes Cited: 9Cited Reference Count: 32},
	month = {Apr},
	pages = {6662-6671},
	type = {Article},
	abstract = {The full velocity-angular momentum distribution function for gas-phase N-2(+) drifting in helium is calculated using a molecular dynamics method, and utilized to examine collision-induced rotational alignment in detail. These results are also compared with experimental measurements, most especially those of Anthony [J. Chem. Phys. 112, 10269 (2000)] and those appearing in the preceding article [Anthony , J. Chem. Phys. 114, 6654 (2001)]. Both the calculations and experiments show a number of interesting features including, drift velocities which depend upon rotational state, and quadrupolar alignment parameters which change from negative at high velocities to positive at low velocities. (C) 2001 American Institute of Physics.},
	keywords = {EXCITATION, GENERALIZED CROSS-SECTIONS, HE, IONS, KINETIC-THEORY, LIGHTER GASES, STATE, TRANSPORT, TUBE EXPERIMENTS, VELOCITY DISTRIBUTIONS},
	isbn = {0021-9606},
	url = {<Go to ISI>://000167914400020},
	author = {Baranowski, R. and Wagner, B. and Thachuk, M.}
}
@article {4468,
	title = {Molecular-dynamics study of rotational alignment of NO+ drifting in helium-velocity and angular momentum distribution functions},
	journal = {Journal of Chemical Physics},
	volume = {111},
	number = {22},
	year = {1999},
	note = {ISI Document Delivery No.: 258RKTimes Cited: 8Cited Reference Count: 27},
	month = {Dec},
	pages = {10061-10068},
	type = {Article},
	abstract = {Collision-induced rotational alignment of NO+ ions drifting in a helium buffer gas is studied with molecular dynamics using the ab initio potential surface of S. K. Pogrebnya [Int. J. Mass Spectrom. Ion Proc. 149/150, 207 (1995)], obtained via a coupled-cluster singles-doubles approximation. We examine average translational and rotational temperatures, velocity and angular momentum distributions, and the dependence of these quantities on the applied electric field. The distributions show that angular momentum is preferentially aligned perpendicular to the electric field vector. We investigate the mechanism of this alignment through a multipolar moment expansion, and propose and demonstrate the accuracy of a bi-Maxwellian analytic form for describing the angular momentum distribution. (C) 1999 American Institute of Physics. [S0021-9606(99)00546-2].},
	keywords = {ATOMIC GASES, HE, IONS, KINETIC-THEORY, MOBILITIES, NA+, TRANSPORT-COEFFICIENTS, TUBE EXPERIMENTS},
	isbn = {0021-9606},
	url = {<Go to ISI>://000083852700018},
	author = {Baranowski, R. and Thachuk, M.}
}
