Probing Ferromagnets with Andreev Reflection
Shashi K. Upadhyay, Akilan Palanisami, Richard N. Louie, R. A. Buhrman
DOI 10.1103/PhysRevLett.81.3247 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
High transmissivity, ferromagnet-superconductor thin film nanocontacts are studied experimentally. Compared to nonmagnetic metal-superconductor contacts, Andreev reflection is strongly suppressed due to the spin polarization of conduction electrons in the ferromagnet. This effect is used to measure both the transparency of the interface and spin polarization of the direct current in the ferromagnet in contrast to the spin polarization of the tunneling current previously measured in ferromagnet-insulator-superconductor systems.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure not reported | unknown |
Similar papers
Andreev bound states in superconductor/ferromagnet point contact Andreev reflection spectra
similarity 0.95K. A. Yates et al.
Source status unknown — claims are unverified
Origin of spin-polarization decay in point-contact Andreev reflection
similarity 0.95C. H. Kant et al.
Source status unknown — claims are unverified
Andreev reflection under high magnetic fields in ferromagnet-superconductor nanocontacts
similarity 0.93S. Sangiao et al.
Source status unknown — claims are unverified
Magnetic-field-induced pair-breaking effects in granular Pb films near the superconductor-to-insulator transition
similarity 0.93Shih-Ying Hsu & J. M. Valles, Jr.
Source status unknown — claims are unverified
Direct visualization of magnetic vortex pinning in superconductors
similarity 0.93Mariela Menghini et al.
Source status unknown — claims are unverified
Control of Andreev Reflection via a Single-Molecule Orbital
similarity 0.93Lorenz Meyer et al.
Source status unknown — claims are unverified