Andreev reflection under high magnetic fields in ferromagnet-superconductor nanocontacts
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
The American Physical SocietyDate
2011-12-02Citation
10.1103/PhysRevB.84.233402
Physycal Review B 84.23 (2011): 233402
ISSN
1098-0121 (print); 1550-235X (online)DOI
10.1103/PhysRevB.84.233402Funded by
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 MECEditor's Version
http://dx.doi.org/10.1103/PhysRevB.84.233402Subjects
FísicaRights
© 2011 American Physical SocietyAbstract
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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