Star-Shaped Local Density of States around Vortices in a Type-II Superconductor
Nobuhiko Hayashi, Masanori Ichioka, Kazushige Machida
DOI 10.1103/PhysRevLett.77.4074 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The electronic structure of vortices in a type II superconductor is analyzed within the quasiclassical Eilenberger framework. The possible origin of a sixfold “star” shape of the local density of states, observed by scanning tunneling microscope (STM) experiments on NbSe2, is examined in the light of the three effects: the anisotropic pairing, the vortex lattice, and the anisotropic density of states at the Fermi surface. Outstanding features of split parallel rays of this star are well explained in terms of an anisotropic s-wave pairing. This reveals not only a rich internal electronic structure associated with a vortex core, but also unique ability of the STM spectroscopy.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Ubiquitous V-Shape Density of States in a Mixed State of Clean Limit Type II Superconductors
similarity 0.97N. Nakai et al.
Source status unknown — claims are unverified
Local density of states in the vortex lattice in a type-II superconductor
similarity 0.96Masanori Ichioka et al.
Source status unknown — claims are unverified
Inertial mass of a vortex in cuprate superconductors
similarity 0.95D. M. Gaitonde & T. V. Ramakrishnan
Source status unknown — claims are unverified
Dynamics of superconducting vortices driven by oscillatory forces in the plastic-flow regime
similarity 0.95D. Pérez Daroca et al.
Source status unknown — claims are unverified
Vortex crossing and trapping in doubly connected mesoscopic loops of a single-crystal type-II superconductor
similarity 0.95Shaun A. Mills et al.
Source status unknown — claims are unverified
Vortex-induced quantum metallicity in the mono-unit-layer superconductor NbSe2
similarity 0.95Satoru Ichinokura et al.
Source status unknown — claims are unverified