Quasi-particle spectrum of giant vortex states in a square nanoscopic superconducting plate

H. Suematsu, M. Kato, M. Machida, Tomio Koyama, T. Ishida

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We have investigated quasi-particle structure and superconducting state of the nano-scaled superconductor under an external magnetic field using a microscopic Bogoliubov-de Gennes equation. Our results show that the giant vortex state has a peak of local density of states at the center of the vortex core in negative energy, while the singly quantized vortex has it in positive energy. This may be observable for scanning tunneling spectroscopy experiments.

Original languageEnglish
Pages (from-to)262-265
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume463-465
Issue numberSUPPL.
DOIs
Publication statusPublished - 2007 Oct 1

Keywords

  • Bogoliubov-de Gennes equation
  • Giant vortex state
  • Nano-scale superconductor
  • Quasi-particle spectrum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Quasi-particle spectrum of giant vortex states in a square nanoscopic superconducting plate'. Together they form a unique fingerprint.

Cite this