Artículo
Yu-Shiba-Rusinov multiplets and clusters of multiorbital adatoms in superconducting substrates: Subgap Green's function approach
Fecha de publicación:
10/2021
Editorial:
American Physical Society
Revista:
Physical Review B
ISSN:
2469-9950
e-ISSN:
2469-9969
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We discuss all the characteristics of Yu-Shiba-Rusinov states for clusters of impurities with classical magnetic moments in a superconducting substrate with s-wave symmetry. We consider the effect of the multiorbital structure of the impurities and the effect of the crystal field splitting. We solve the problem exactly and calculate the subgap Green's function, which has poles at the energies of the Shiba states and defines the local density of states associated with their wave functions. For the case of impurities sufficiently separated, we derive an effective Hamiltonian to describe the hybridization mediated by the substrate. We analyze the main features of the spectrum and the spectral density of the subgap excitations for impurities in dimer configurations with different relative orientations of the magnetic moments. We also illustrate how the same formalism applies for the solution of a trimer with frustration in the orientation of the magnetic moments.
Palabras clave:
Superconductivity
,
Magnetic
,
Impurities
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (ICIFI)
Articulos de INSTITUTO DE CIENCIAS FISICAS
Articulos de INSTITUTO DE CIENCIAS FISICAS
Citación
Arrachea, Liliana del Carmen; Yu-Shiba-Rusinov multiplets and clusters of multiorbital adatoms in superconducting substrates: Subgap Green's function approach; American Physical Society; Physical Review B; 104; 13; 10-2021; 1-20
Compartir
Altmétricas