Superconductivity in silicon and germanium polyhedra

Jun Tang, Kazumi Sato, Zhaofei Li, Katsumi Tanigaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Superconductivity is observed both in silicon and germanium polyhedral materials in Ba24Si100 and Ba24Ge 100. The former superconducts at Tc=1.4K and its T c decreases upon pressure, while the latter is superconducting at 150 mK after the electronic phase transition at 200 K and its Tc rises to 3.8 K with pressure. These characteristics are comparably discussed from the viewpoint of the density of states at the Fermi level experimentally derived both in Ba24Si100 and Ba24Ge100 from soft X-ray photoelectron spectroscopy and magnetic susceptibility measurements.

Original languageEnglish
Pages (from-to)S622-S624
JournalPhysica C: Superconductivity and its applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Light element system
  • Magnetism
  • Photoelectron spectroscopy
  • Silicon
  • Superconductivity

ASJC Scopus subject areas

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

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