Magnetic-field scaling of the conductance of epitaxial cuprate-manganite bilayers

P. A. Kraus; A. Bhattacharya; A. M. Goldman

doi:10.1103/PhysRevB.64.220505

← Back to search

Magnetic-field scaling of the conductance of epitaxial cuprate-manganite bilayers

P. A. Kraus, A. Bhattacharya, A. M. Goldman

DOI 10.1103/PhysRevB.64.220505 · Physical Review B

T1

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

Conductance-voltage characteristics of epitaxial interfaces between oxide ferromagnets and oxide superconductors have been measured as a function of temperature and magnetic field. Their functional form is similar to that predicted by theories of transport across nearly transparent contacts between highly spin-polarized ferromagnets and d-wave superconductors. However, their magnetic-field dependencies scale in striking and unusual ways, challenging our current understanding. Existing theories fail to account for apparent nonequilibium effects that are natural for spin injection in such geometries.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
DyBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	70	Pressure not reported	unknown