| Autor: |
Mancarella, Francesco, Balatsky, Alexander V., Wallin, Mats, Rosengren, Anders |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Supercond. Sci. Technol. 26 125014 (2013) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/0953-2048/26/12/125014 |
| Popis: |
We discuss the angular momentum blockade in small d-wave superconducting grains in an external field. We find that abrupt changes in angular momentum state of the condensate, angular momentum blockade, occur as a result of changes in the angular momentum of the condensate in an external magnetic field. The effect rep- resents a direct analogy with the Coulomb blockade. We use the Ginzburg-Landau formalism to illustrate how a magnetic field induces a deviation from the d-wave symmetry which is described by a (d + id')-order parameter. We derive the behavior of the volume magnetic susceptibility as a function of the magnetic field, and corresponding magnetization jumps at critical values of the field that should be experimentally observable in superconducting grains. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
