Tunneling spectroscopy of the superconducting state of URu2Si2
Entity
UAM. Departamento de Física de la Materia CondensadaPublisher
American Physical SocietyDate
2012-06-13Citation
10.1103/PhysRevB.85.214512
Physical Review B 85.21 (2012): 214512
ISSN
1098-0121 (print); 1550-235X (online)DOI
10.1103/PhysRevB.85.214512Funded by
This work was supported by the Spanish MICINN and MEC (Consolider Ingenio Molecular Nanoscience CSD2007-00010 program, FIS2011-23488, ACI-2009-0905, and FPU grant), by the Comunidad de Madrid through program Nanobiomagnet, and by ERC (NewHeavyFermion) and French ANR projects (CORMAT, SINUS, DELICE)Project
Gobierno de España. CSD2007-00010; Gobierno de España. FIS2011- 23488; Gobierno de España. ACI-2009-0905; Comunidad de Madrid. S2009/MAT-1726/NANOBIOMAGNET; info:eu-repo/grantAgreement/EC/FP7/258239Editor's Version
http://dx.doi.org/10.1103/PhysRevB.85.214512Subjects
FísicaRights
© 2012 American Physical SocietyAbstract
We present measurements of the superconducting gap of URu 2Si 2 made with scanning tunneling microscopy using a superconducting tip of Al. We find tunneling conductance curves with a finite value at the Fermi level. The density of states is V shaped at low energies, and the quasiparticle peaks are located at values close to the expected superconducting gap from weak-coupling BCS theory. Our results point to rather opened gap structures and gap nodes on the Fermi surface
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Google Scholar:Maldonado, A.
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Guillamón Gómez, Isabel
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Rodrigo Rodríguez, José Gabriel
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Suderow Rodríguez, Hermann Jesús
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Vieira Díaz, Sebastián
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Aoki, D.
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Flouquet, J.
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