Struttura della materia

The zero magneto resistance of low dimensional nanostructures at high electric field: polyacetylene nanofibers and MoS2

by Y.W. Park (Seoul National University, Korea)

Europe/Rome
Aula Conversi (Dipartimento di Fisica - Ed. G. Marconi)

Aula Conversi

Dipartimento di Fisica - Ed. G. Marconi

Description
The zero magneto resistance (ZMR) observed in polyacetylene nanofibers in high electric field is explained with the de-confined conduction of spinless charged solitons akin to a Majorana fermion state as 1-D topological insulator. Similar ZMR is also observed in MoS2 which is understood as due to the sliding charge density wave (CDW) in high electric field. The results are the evidences of zero magnetic moment of the sliding collective excitations in low dimensional systems.