Point-contact Andreev reflection spectroscopy of heavy-fermion-metal/superconductor junctions

Andreev-reflection and Point-contact Spectroscopy of Superconducting Rare Earth Transition Metal Borocarbides

Interface spin-flip scattering model for point contact Andreev reflection

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Point-Contact Andreev-Reflection Spectroscopy in Fe-Based Superconductors: Multigap Superconductivity and Strong Electron–Boson Interaction

We performed point-contact Andreev-reflection measurements in Ba(Fe1−xCox)2As2 single crystals (x = 0.1, Tc = 24.5 K) and SmFeAsO1−xFx polycrystals (x = 0.2, Tc = 52 K). The spectra indicate the presence of two superconducting gaps with no line nodes on the Fermi surface, but also feature additional structures related to the electron–boson interaction (EBI). From the spectra, it is possible to ...

Majorana fermion induced resonant Andreev reflection.

We describe experimental signatures of Majorana fermion edge states, which form at the interface between a superconductor and the surface of a topological insulator. If a lead couples to the Majorana fermions through electron tunneling, the Majorana fermions induce resonant Andreev reflections from the lead to the grounded superconductor. The linear tunneling conductance is 0 (2e(2)/h) if there...

Magnetoanisotropic Andreev reflection in ferromagnet-superconductor junctions.

Andreev reflection spectroscopy of ferromagnet-superconductor (FS) junctions [corrected] is an important probe of spin polarization. We theoretically investigate spin-polarized transport in FS junctions in the presence of Rashba and Dresselhaus interfacial spin-orbit fields and show that Andreev reflection can be controlled by changing the magnetization orientation. We predict a giant in- and o...