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Título: | Spin screening and antiscreening in a ferromagnet/superconductor heterojunction |
Autor: | Bergeret, F. S. CSIC ORCID; García, N. | Fecha de publicación: | 2004 | Editor: | American Physical Society | Citación: | Physical Review B 70(5): 052507 (2004) | Resumen: | We present a theoretical study of spin-screening effects in a ferromagnet-superconductor (FS) heterojunction. It is shown that the magnetic moment of the ferromagnet is screened or antiscreened, depending on the polarization of the electrons at the Fermi level. If the polarization is determined by the electrons of the majority (minority) spin band then the magnetic moment of the ferromagnet is screened (antiscreened) by the electrons in the superconductor. We propose experiments that may confirm our theory: for ferromagnetic alloys with certain concentration of Fe or Ni ions there will be screening or antiscreening, respectively. Different configurations for the density of states are also discussed. | Versión del editor: | https://doi.org/10.1103/PhysRevB.70.052507 | URI: | http://hdl.handle.net/10261/226017 | DOI: | 10.1103/PhysRevB.70.052507 | ISSN: | 2469-9950 |
Aparece en las colecciones: | (CFM) Artículos |
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