Yazarlar |
Doç. Dr. Mustafa KAN
Kırşehir Ahi Evran Üniversitesi |
Jian Zhou
|
Qiang Sun
|
Qian Wang
|
Yoshiyuki Kawazoe
|
Puru Jena
|
Özet |
Zigzag-edged graphene nanoribbons are antiferromagnetic in cross-edge coupling and unsuitable for spintronics applications. Two new strategies of tuning antiferromagnetism (AFM) to ferromagnetism (FM) in graphene nanoribbons are introduced through topological line defects composed of pentagonal and octagonal rings, and their ability to induce magnetic transition is probed by using density functional theory. The resulting exchange energy is found to be large enough for ferromagnetism to be observed at room temperature. Both strategies are experimentally feasible, and the results suggest that defect engineering may provide a novel path to manipulate the magnetic properties of graphene nanoribbons. |
Anahtar Kelimeler |
Makale Türü | Özgün Makale |
Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
Dergi Adı | PHYSICAL REVIEW B |
Dergi ISSN | 1098-0121 |
Dergi Grubu | Q4 |
Makale Dili | İngilizce |
Basım Tarihi | 40-2012 |
Cilt No | 85 |
Sayı | 15 |
Doi Numarası | 10.1103/PhysRevB.85.155450 |