Magnetic interactions in amorphous spin-glass–superconducting multilayers
M. Maurer, A. Menny, M. F. Ravet, J. Meiresonne, P. H. Kes, J. Y. Mydosh
DOI 10.1103/PhysRevB.40.5198 · Physical Review B
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 have investigated the spin-glass transition of some amorphous multilayers where a spin-glass layer of GdAl2, with a bulk freezing temperature Tf of ≊11 K, is intercalated with a nonmagnetic layer of Mo3Si. The transition temperature, as defined by the dc susceptibility maximum, has been investigated with a SQUID as a function of the thicknesses. For thin GdAl2 layers (≊9Å),Tf depends dramatically on the spacing between the magnetic layers, i.e., the thickness of Mo3Si. This is a signature of a long-range magnetic interaction across the nonmagnetic layers. Such an effect is confirmed by the absence of any superconductivity in the Mo3Si layers up to thicknesses of 60 Å, whereas the bulk phase has a Tc around 6 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Mo3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6 | Pressure not reported | unknown |
Similar papers
Pinning forces and defects as measured by critical currents in amorphous superconducting materials
similarity 0.94J. Luzuriaga
Source status unknown — claims are unverified
Electron localization effects on the low-temperature high-field magnetoresistivity of three-dimensional amorphous superconductors
similarity 0.93A. V. Samoilov et al.
Source status unknown — claims are unverified
Anomalous magnetoresistance near the superconductor-insulator transition in ultrathin films of a−MoxSi1−x
similarity 0.91S. Okuma et al.
Source status unknown — claims are unverified
Imaging pinning and expulsion of individual superconducting vortices in amorphous MoSi thin films
similarity 0.90L. Ceccarelli et al.
Source status unknown — claims are unverified
Observation of a Spin Gap in the Normal State of Superconducting Mo3Sb7
similarity 0.90Vinh Hung Tran et al.
Source status unknown — claims are unverified
Vortex Counting and Velocimetry for Slitted Superconducting Thin Strips
similarity 0.90V.M. Bevz et al.
Source status unknown — claims are unverified