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Average density of states in disordered graphene systems

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Average density of states in disordered graphene systems
นักวิจัย : Wu, Shangduan , Jing, Lei , Li, Qunxiang , Shi, Q. W. , Chen, Jie , Su, Haibin , Wang, Xiaoping , Yang, Jinlong
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2551
อ้างอิง : Wu, S., Jing, L., Li, Q., Shi, Q. W., Chen, J., Su, H., et al. (2008). Average density of states in disordered graphene systems. Physical Review B, 77. , http://hdl.handle.net/10220/6906 , http://dx.doi.org/10.1103/PhysRevB.77.195411
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Physical review B
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this paper, the average density of states (ADOS) in graphene with binary alloy disorders is calculated by the recursion method. We observed an obvious resonant peak and a dip in ADOS curves near the Dirac point, which result from interactions with surrounding impurities. We also found that the resonance energy (Er) and the dip position (εdip) are strongly dependent on the concentration of disorders (x) and their on-site potentials (v). A linear relation, εdip=xv, holds when the impurity concentration is low. This relation can also be extended when the impurity concentration is high, but with certain constraints. We also compute ADOS with a finite density of vacancies.

บรรณานุกรม :
Wu, Shangduan , Jing, Lei , Li, Qunxiang , Shi, Q. W. , Chen, Jie , Su, Haibin , Wang, Xiaoping , Yang, Jinlong . (2551). Average density of states in disordered graphene systems.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wu, Shangduan , Jing, Lei , Li, Qunxiang , Shi, Q. W. , Chen, Jie , Su, Haibin , Wang, Xiaoping , Yang, Jinlong . 2551. "Average density of states in disordered graphene systems".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wu, Shangduan , Jing, Lei , Li, Qunxiang , Shi, Q. W. , Chen, Jie , Su, Haibin , Wang, Xiaoping , Yang, Jinlong . "Average density of states in disordered graphene systems."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2551. Print.
Wu, Shangduan , Jing, Lei , Li, Qunxiang , Shi, Q. W. , Chen, Jie , Su, Haibin , Wang, Xiaoping , Yang, Jinlong . Average density of states in disordered graphene systems. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2551.