Probing the Superconducting Pairing Symmetry from Spin Excitations in BiS2 Based Superconductors
نویسندگان
چکیده
منابع مشابه
Pairing symmetry in cuprate superconductors
Pairing symmetry in the cuprate superconductors is an important and controversial topic. The recent development of phase-sensitive tests, combined with the refinement of several other symmetry-sensitive techniques, has for the most part settled this controversy in favor of predominantly d-wave symmetry for a number of optimally holeand electron-doped cuprates. This paper begins by reviewing the...
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The symmetry of thewavefunction describing the Cooper pairs is one of the most fundamental quantities in a superconductor, but for iron-based superconductors it has proved to be problematic to determine, owing to their complex multi-band nature1–3. Here we use a first-principles many-body method, including the two-particle vertex function, to study the spin dynamics and the superconducting pair...
متن کاملPairing Symmetry of the High Temperature Superconductors
A review of relevant experiments that favour an unconventional pairing symmetry in high temperature cuprates is made. Results of magnitude sensitive techniques are discussed and then tests which probe directly the phase of the order parameter are presented in more detail. Josephson eeect and its relevance to this problem is described. Consensus resulting from compelling arguments for a d x 2 ?y...
متن کاملMagnetism, superconductivity, and pairing symmetry in iron-based superconductors
A. V. Chubukov,1 D. V. Efremov,2 and I. Eremin3,4 1Department of Physics, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA 2Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany 3Max-Planck Institut für Physik komplexer Systeme, D-01187 Dresden, Germany 4Institute für Mathematische und Theoretische Physik, TU Braunschweig, D-38106 Braunschweig, G...
متن کاملd-wave pairing symmetry in cuprate superconductors
Phase-sensitive tests of pairing symmetry have provided strong evidence for predominantly d-wave pairing symmetry in both the holeand electron-doped high-Tc cuprate superconductors. Temperature dependent measurements in YBa2Cu3O7−δ (YBCO) indicate that the d-wave pairing dominates, with little if any imaginary component, at all temperatures from 0.5K through Tc. In this article we review some o...
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ژورنال
عنوان ژورنال: Journal of Superconductivity and Novel Magnetism
سال: 2012
ISSN: 1557-1939,1557-1947
DOI: 10.1007/s10948-012-2073-4