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

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 and type of transition metal atoms. These chains, which are stable even at high temperature and some of which keep their spin-dependent electronic properties even under moderate axial strain, hold the promise of potential applications in nanospintronics.

arXiv comment11 pages, 3 figures, 1 tables

References in corpus (3)

• Half-metallic ferromagnetism and structural stability of zincblende phases of the transition-metal chalcogenides
• Evidence of spontaneous spin polarized transport in magnetic nanowires
• Ab-initio electron transport calculations of carbon based string structures

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