Abstract
Interaction of the random-telegraph-noise signals with pinned Abrikosov vortices in granular high-temperature superconductors is investigated. It is shown that the low-frequency part of random-noise spectra is suppressed due to interaction of Abrikosov vortices with pinning centers at low magnetic fields and/or due to mutual interactions of vortices in an Abrikosov lattice at high magnetic fields. Values of characteristic frequencies below which spectra are suppressed are evaluated for various experimental configurations including a typical experimental thin-film strip geometry. It is shown that characteristic frequencies and the functional dependence of the low-frequency part of the noise spectra strongly depend on the external magnetic field.
| Original language | English |
|---|---|
| Pages (from-to) | 1236-1244 |
| Number of pages | 9 |
| Journal | Physical Review B |
| Volume | 51 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jan 1995 |
ASJC Scopus subject areas
- Condensed Matter Physics