Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6135
Title: Magnetic phases of graphene nanoribbons under potential fluctuations
Authors: Özdemir, Hakan Ulaş
Altıntaş, Abdulmenaf
Güçlü, Alev Devrim
Keywords: Graphene
Nanoribbons
Issue Date: 12-Jan-2016
Publisher: American Physical Society
Source: Özdemir, H. U.., Altıntaş, A. and Güçlü, A.D. (2016). Magnetic phases of graphene nanoribbons under potential fluctuations. Physical Review B, 93(1). doi:10.1103/PhysRevB.93.014415
Abstract: We investigate the effects of long-range potential fluctuations and electron-electron interactions on the electronic and magnetic properties of graphene nanoribbons with zigzag edges using an extended mean-field Hubbard model. We show that electron-electron interactions make the edge states robust against potential fluctuations. When the disorder is strong enough, the presence of electron-hole puddles induces a magnetic phase transition from antiferromagnetically coupled edge states to ferromagnetic coupling, in agreement with recent experimental results.
URI: http://doi.org/10.1103/PhysRevB.93.014415
http://hdl.handle.net/11147/6135
ISSN: 2469-9950
2469-9969
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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