The electronic structure, magnetic properties and strain response of N-a-TiS3
nanoribbons are investigated by first-principles calculations. We find that the magnetic ground state is strongly dependent on width of a
. When N equals an odd number the ground state is a ferromagnetic (FM) metal, meanwhile, when N equals an even number the ground state is an anti-ferromagnetic (AFM) metal. More interestingly, a tensile strain as large as 6% can tune the 9-a
nanoribbon from a FM metal to a half metal. A 4% tensile strain also causes a phase transition from AFM to FM ground state for 10-a
nanoribbon. Our findings show that N-a
is a promising candidate for spintronic and electronic applications.
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