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Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 13: Poster Session I

HL 13.3: Poster

Monday, March 12, 2018, 17:30–19:30, Poster B

Anderson localization and magnetization in graphene quantum dots — •Abdulmenaf Altintas and Alev devrim Guclu — Izmir Institute of Technology, Izmir, Turkey

We theoretically try to understand the effects of vacancy related disorders and electron-electron interactions on Anderson type localization and the magnetic properties of hexagonal armchair graphene quantum dots. Our model is based on mean-field Hubbard model. Removing pz orbital induce local magnetic puddle in vacancy related region. Disorders leads to localization of electronic states when they are introduced randomly. Localization length decreases with breaking of sub lattice symmetry.

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