Abstract
Spin imbalance can lead to suppression of superconductivity. We report the phenomena manifesting this effect under spin-polarized quasiparticle currents in ferromagnet-superconductor-ferromagnet single-electron transistors. The measured superconducting gap as a function of magnetic field reveals a dramatic decrease when the magnetizations of the two leads are misaligned. The effect of suppression increases with increasing source-drain voltage. A comparison with theoretical calculations is presented. This method may render it applicable to control superconductivity at low temperatures within low fields.
| Original language | English |
|---|---|
| Number of pages | 1 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2002 Jan 1 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Chen, C. D., Kuo, W., Chung, D. S., Shyu, J. H., Wu, C. S., Kuo, W., & Shyu, J. H. (2002). Evidence for Suppression of Superconductivity by Spin Imbalance in Co-Al-Co Single-Electron Transistors. Physical Review Letters, 88(4). https://doi.org/10.1103/PhysRevLett.88.047004