Effect of Interface-Induced Exchange Fields on Cuprate-Manganite Spin Switches
Yaohua Liu, C. Visani, N. M. Nemes, M. R. Fitzsimmons, L. Y. Zhu, J. Tornos, M. Garcia-Hernandez, M. Zhernenkov, A. Hoffmann, C. Leon, J. Santamaria, S. G. E. te Velthuis
DOI 10.1103/PhysRevLett.108.207205 · 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
We examine the anomalous inverse spin switch behavior in La0.7Ca0.3MnO3(LCMO)/YBa2Cu3O7−δ (YBCO)/LCMO trilayers by combined transport studies and polarized neutron reflectometry. Measuring magnetization profiles and magnetoresistance in an in-plane rotating magnetic field, we prove that, contrary to many accepted theoretical scenarios, the relative orientation between the two LCMO’s magnetizations is not sufficient to determine the magnetoresistance. Rather the field dependence of magnetoresistance is explained by the interplay between the applied magnetic field and the (exponential tail of the) induced exchange field in YBCO, the latter originating from the electronic reconstruction at the LCMO/YBCO interfaces.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 26 | Pressure not reported | unknown |
Similar papers
Granular superconductivity and magnetic-field-driven recovery of macroscopic coherence in a cuprate/manganite multilayer
similarity 0.95B. P. P. Mallett et al.
Source status unknown — claims are unverified
Interplay between magnetism and superconductivity in a hybrid magnon-photon bilayer system
similarity 0.94Alberto Ghirri et al.
Source status unknown — claims are unverified
Evidence from magnetoresistance measurements for an induced triplet superconducting state in La0.7Ca0.3MnO3/YBa2Cu3O7−δ multilayers
similarity 0.94T. Hu et al.
Source status unknown — claims are unverified
Weak magnetism in insulating and superconducting cuprates
similarity 0.94G. M. De Luca et al.
Source status unknown — claims are unverified
Hysteretic magnetic pinning and reversible resistance switching in high-temperature superconductor/ferromagnet multilayers
similarity 0.94C. Visani et al.
Source status unknown — claims are unverified
Analytical approach to the thermal instability of superconducting films under high current densities
similarity 0.94Jesús Maza et al.
Source status unknown — claims are unverified