Quantum spin fluctuations as a source of long-range proximity effects in diffusive ferromagnet-super conductor structures

By A. Kadigrobov, R. Shekhter, M. Jonson. 2000

171 citations recorded by the source corpus.

We show that quantum spin fluctuations in inhomogeneous ferromagnets drastically affect the Andreev reflection of electrons and holes at a ferromagnet-superconductor interface. As a result, a strong long-range proximity effect appears, associated with electron-hole spin-triplet correlations and persisting on a length scale typical for non-magnetic materials, but anomalously large for ferromagnets.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/e98b9330d2db3042b94b80087501367f10ccfdc3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Condensed Matter Physics

1. J. Linder
2. F. Bergeret
3. K. Efetov
4. A. Volkov
5. J. Robinson
6. A. Buzdin
7. V. Ryazanov
8. Alexander V. Balatsky

In Electronic, Optical and Magnetic Materials

1. J. Linder
2. F. Bergeret
3. K. Efetov
4. A. Volkov
5. J. Robinson
6. A. Buzdin
7. V. Ryazanov

Citations in the corpus

• Proximity effect in superconductor-ferromagnet heterostructures (2005, methodology): “Bergeret et al. (2001b) and Kadigrobov et al. (2001) analyzed in the framework of Usadel equations the proximity effect in S/F structures with local inhomogeneity of the magnetization.”
• Odd triplet superconductivity and related phenomena in superconductor-ferromagnet structures (2005, background): “Another case of a thin domain wall (w < l) was considered by Kadigrobov et al. (2001).”
• Superconducting spintronics (2015, background): “[20, 21]) that triplet pairs that carry spin in addition to charge could also form by introducing magnetic inhomogeneities at the superconductor-ferromagnet interface.”