Study of an inhomogeneous spin-orbit coupling in topological semiconducting wires

Uldemolins Nivela, Mateo
Simon, Pascal (dir.)

Universidad de Zaragoza, CIEN, 2019

Graduado en Física

Abstract: The present End-of-Degree Thesis is framed within the context of Majorana fermions in Condensed Matter, and it focusses on the Rashba nanowire, a realistic system which allows the emergence of Majorana zero modes. After having introduced the present state of affairs in the field, the original proposal is reviewed, and subsequently, a nanowire with inhomogeneous spin-orbit coupling is analysed. Utilizing numerical techniques, it is shown that under precise conditions a defect in the spin-orbit coupling can originate zero-energy fermionic bound states akin to the original Majorana zero modes. Finally, a finite-size effect induced by the presence of the defect is investigated.

Tipo de Trabajo Académico: Trabajo Fin de Grado
Notas: Conducted at the Laboratoire de Physique des Solides d'Orsay (Université Paris-Sud)

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Academic Works > Trabajos Académicos por Centro > facultad-de-ciencias
Academic Works > End-of-grade works

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