Variation of zero-energy density of states of a d -wave superconductor in a rotating in-plane magnetic field: Effect of nonmagnetic impurities

Yuuki Hashitani, Kenta K. Tanaka, Hiroto Adachi, Masanori Ichioka

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Oscillation of zero-energy density of states under the rotation of an in-plane magnetic field is used to identify node positions of the superconducting gap. Based on Eilenberger theory that can capture the vortex core contribution appropriately, we quantitatively study the effects of nonmagnetic impurity scattering on the oscillation in a dx2-y2-wave superconductor, as a function of the magnetic field and the scattering rate in the Born and the unitary limits. We find that the sign of the oscillation can be changed by the impurity scattering at low fields, indicating that impurity effect is an important factor in the analysis of angle-resolved specific heat measurements.

    Original languageEnglish
    Article number060501
    JournalPhysical Review B
    Volume101
    Issue number6
    DOIs
    Publication statusPublished - Feb 1 2020

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Fingerprint

    Dive into the research topics of 'Variation of zero-energy density of states of a d -wave superconductor in a rotating in-plane magnetic field: Effect of nonmagnetic impurities'. Together they form a unique fingerprint.

    Cite this