Emerging Magnetism in Platinum Nanowires
Anna Delin, Erio Tosatti
TL;DR
This paper theoretically investigates platinum nanowires, revealing they exhibit Hund's rule magnetism with a measurable magnetic moment that increases upon stretching, affecting their conductance properties.
Contribution
It is the first to demonstrate Hund's rule magnetism in infinitely long platinum nanowires and analyze its origin and impact on conductance.
Findings
Spin moment of 0.6 Bohr magnetons per atom at equilibrium
Magnetic moment increases with stretching
Magnetism influences conductance through the wire
Abstract
We have investigated infinitely long, monostrand Pt nanowires theoretically, and found that they exhibit Hund's rule magnetism. We find a spin moment of 0.6 Bohr magnetons per atom, at the equilibrium bond length. Its magnetic moment increases with stretching. The origin of the wire magnetism is analyzed and its effect on the conductance through the wire is discussed.
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