TY - JOUR
T1 - Magnetoresistance of Mn-decorated topological line defects in graphene
AU - Obodo, Tobechukwu Joshua
AU - Kahaly, M. Upadhyay
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/1/13
Y1 - 2015/1/13
N2 - We study the spin polarized transport through Mn-decorated 8-5-5-8 topological line defects in graphene using the nonequilibrium Green's function formalism. Strong preferential bonding overcomes the high mobility of transition metal atoms on graphene and results in stable structures. Despite a large distance between the magnetic centers, we find a high magnetoresistance and attribute this unexpected property to very strong induced π magnetism, in particular for full coverage of all octagonal hollow sites by Mn atoms. In contrast to the magnetoresistance of graphene nanoribbon edges, the proposed system is well controlled and therefore suitable for applications.
AB - We study the spin polarized transport through Mn-decorated 8-5-5-8 topological line defects in graphene using the nonequilibrium Green's function formalism. Strong preferential bonding overcomes the high mobility of transition metal atoms on graphene and results in stable structures. Despite a large distance between the magnetic centers, we find a high magnetoresistance and attribute this unexpected property to very strong induced π magnetism, in particular for full coverage of all octagonal hollow sites by Mn atoms. In contrast to the magnetoresistance of graphene nanoribbon edges, the proposed system is well controlled and therefore suitable for applications.
UR - http://hdl.handle.net/10754/346733
UR - http://link.aps.org/doi/10.1103/PhysRevB.91.014413
UR - http://www.scopus.com/inward/record.url?scp=84921033434&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.91.014413
DO - 10.1103/PhysRevB.91.014413
M3 - Article
SN - 1098-0121
VL - 91
JO - Physical Review B
JF - Physical Review B
IS - 1
ER -