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Updated: Jun 16, 2026

Using Laser Scanning Microscopy to Determine Electromigration in Molybdenum Disilicide
Published on: May 23, 2025
Impact of dimerization and stretching on the transport properties of molybdenum atomic wires
A García-Fuente1, A Vega, V M García-Suárez
1Departamento de Física Teórica, Atómica y Optica, Universidad de Valladolid, Valladolid, Spain.
Abstract:
We study the electrical and transport properties of monatomic Mo wires with different structural characteristics. We consider first periodic wires with interatomic distances ranging between the dimerized wire to that formed by equidistant atoms. We find that the dimerized case has a gap in the electronic structure which makes it insulating, as opposed to the equidistant or near-equidistant cases which are metallic. We also simulate two conducting one-dimensional Mo electrodes separated by a scattering region which contains a number of dimers between 1 and 6. The I-V characteristics strongly depend on the number of dimers and vary from ohmic to tunneling, with the presence of different gaps. We also find that stretched chains are ferromagnetic.
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