A new calculation of the ion velocity shift in a vortex resonance experiment in He II |
| |
| Authors: | J. W. Halley R. M. Ostermeier |
| |
| Affiliation: | (1) Department of Physics, University of Oregon, Eugene, Oregon;(2) Present address: Department of Physics, University of Minnesota, Minneapolis, Minnesota |
| |
| Abstract: | We calculate the shift in velocity of an ion trapped on a vortex, line in He II when, in addition to a dc electric field directed along the line, an ac field is applied perpendicular to the line. We employ a model of the ion on a line first introduced by Ohmi and Usui and used by them to calculate the dc mobility. The ion drift velocity in the presence of the ac field exhibits a nearly flat plateau as a function of dc field and a canted dip as a function of frequency. The present calculation differs in some details from the earlier one and permits a more reliable estimate of the change in velocity.This work is supported in part by two grants from the National Science Foundation: DMR 72-03221 A01 and GH-34890. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
