Experimental Observation of Pair-Quasiparticle Potential Difference in Nonequilibrium Superconductors
نویسندگان
چکیده
منابع مشابه
Quasiparticle interference in iron-based superconductors
We systematically calculate quasiparticle interference QPI signatures for the whole phase diagram of iron-based superconductors. Impurities inherent in the sample together with ordered phases lead to distinct features in the QPI images that are believed to be measured in spectroscopic imaging-scanning tunneling microscopy. In the spin-density wave phase the rotational symmetry of the electronic...
متن کاملQuasiparticle localization transition in dirty superconductors
In this paper, a delocalization-localization transition within a superconducting state is explored. The symmetries of the Bogoliubov deGennes Hamiltonian endow the two associated superconducting phases—the thermal metal and the thermal insulator—and the critical point between them, with properties that are in stark contrast with analogous phases in normal systems. Here, for systems preserving s...
متن کاملSpin-polarized quasiparticle transport in cuprate superconductors
The effects of spin-polarized quasiparticle transport in superconducting YBa2Cu3O7−δ (YBCO) epitaxial films are investigated by means of current injection into perovskite ferromagnet-insulatorsuperconductor (F-I-S) heterostructures. These effects are compared with the injection of simple quasiparticles into control samples of perovskite non-magnetic metal-insulator-superconductor (N-IS). System...
متن کاملQuasiparticle conductivities in disordered d-wave superconductors.
We study the quasiparticle transport coefficients in disordered d-wave superconductors. We find that spin and charge excitations are generally localized unless magnetic impurities are present. If the system is close to a nesting point in the impurity-scattering unitary limit, the tendency towards localization is reduced while the quasiparticle density of states gets enhanced by disorder. We als...
متن کاملQuasiparticle localization in disordered d-wave superconductors
An extensive numerical study is reported on the disorder effect in two-dimensional d-wave superconductors with random impurities in the unitary limit. It is found that a sharp resonant peak shows up in the density of states at zero energy and correspondingly the finite-size spin conductance is strongly enhanced which results in a nonuniversal feature in one-parameter scaling. However, all quasi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1972
ISSN: 0031-9007
DOI: 10.1103/physrevlett.28.1363