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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 877-898 |
| Number of pages | 22 |
| Journal | Journal of Low Temperature Physics |
| Volume | 26 |
| Issue number | 5-6 |
| DOIs | |
| State | Published - Mar 1 1977 |