Two impurities in ad-wave superconductor: Local density of states
نویسندگان
چکیده
منابع مشابه
Local Density of States in Superconductor - Ferromagnetic Hybrid Systems
In this Letter we discuss various properties of the local density of states (DOS) for a superconductor-ferromagnet hybrid system. The DOS is modified at small energies on both sides of the interface. Due to the interplay of superconductivity and ferromagnetism, the local DOS depends on the spin direction. The spin polarization effects extend over a long distance from the interface both in the s...
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We consider a disordered d–wave superconductor in two dimensions. Recently, we have shown in an exact calculation that for a lattice model with a Lorentzian distributed random chemical potential the quasiparticle density of states at the Fermi level is nonzero. As the exact result holds only for the special choice of the Lorentzian, we employ different methods to show that for a large class of ...
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İnanç Adagideli,* Daniel E. Sheehy, and Paul M. Goldbart Instituut-Lorentz, Universiteit Leiden, Niels Bohrweg 2, Leiden, NL-2333 CA, The Netherlands Department of Physics & Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, Canada V6T1Z1 Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 ~Received 12 J...
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A superconductor in contact with a normal metal not only induces superconducting correlations, known as the proximity effect, but also modifies the density of states at some distance from the interface. These modifications can be resolved experimentally in microstructured systems. We therefore study the local density of states N(E ,x) of a superconductor–normal-metal heterostructure. We find a ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.67.094508