Andreev reflection under high magnetic fields in ferromagnet-superconductor nanocontacts
Entidad
UAM. Departamento de Física Teórica de la Materia CondensadaEditor
The American Physical SocietyFecha de edición
2011-12-02Cita
10.1103/PhysRevB.84.233402
Physycal Review B 84.23 (2011): 233402
ISSN
1098-0121 (print); 1550-235X (online)DOI
10.1103/PhysRevB.84.233402Financiado por
This work was supported by the Spanish Ministry of Science (through projects MAT2008-06567-C02, including FEDER funding) and the Arag´on Regional Government (project E26). S. Sangiao acknowledges financial support from Spanish MECVersión del editor
http://dx.doi.org/10.1103/PhysRevB.84.233402Materias
FísicaDerechos
© 2011 American Physical SocietyResumen
We study the magnetic-field dependence of the conductance in planar ferromagnet-superconductor nanocontacts created with focused-electron/ion-beam techniques. From the fits of the differential conductance curves in high magnetic fields, we obtain the magnetic field dependences of the superconducting gap and the broadening parameter. Orbital depairing is found to be linear with magnetic field. We evaluate the magnetic field dependence of the quasiparticle density of states, and we compare it with the value obtained by scanning tunneling spectroscopy experiments
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Google Scholar:Sangiao, Soraya
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De Teresa, José María
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Ibarra, Manuel Ricardo
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Guillamón Gómez, Isabel
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Suderow Rodríguez, Hermann Jesús
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Vieira Díaz, Sebastián
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Morellón, Luis
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