Tunneling spectroscopy of the superconducting state of URu2Si2

Article

关键词: POINT-CONTACT SPECTROSCOPY;    HIDDEN ORDER;    LATTICE;    MICROSCOPY;    TRANSITION;    ANISOTROPY;    PRESSURE;    TIPS;   

DOI  :  10.1103/PhysRevB.85.214512

来源: SCIE

【 摘 要 】

We present measurements of the superconducting gap of URu2Si2 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.

【 授权许可】

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