Half-metallic properties of atomic chains of carbon-transition-metal compounds

S. Dag, S. Tongay, T. Yildirim, E. Durgun, R. T. Senger, C. Y. Fong, S. Ciraci

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

We found that magnetic ground state of one-dimensional atomic chains of carbon-transition-metal compounds exhibit half-metallic properties. They are semiconductors for one spin direction, but show metallic properties for the opposite direction. The spins are fully polarized at the Fermi level and net magnetic moment per unit cell is an integer multiple of Bohr magneton. The spin-dependent electronic structure can be engineered by changing the number of carbon atoms and type of transition metal atoms. These chains, which are stable even at high temperatures and some of which keep their spin-dependent electronic properties even under moderate axial strain, hold the promise of potential applications in nanospintronics.

Original languageEnglish (US)
Article number155444
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number15
DOIs
StatePublished - Oct 15 2005
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this