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- Peking UniversityCN389 papers
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14 papers · 1 filter
Dirac equation description on the electronic states and magnetic properties of a square graphene quantum dot
Changlin Tang, Weihua Yan, Yisong Zheng +2
Electronic eigen-states of a square graphene quantum dot(GQD) terminated by both zigzag and armchair edges are derived in the theoretical framework of Dirac equation. We find that…
Generalized transfer matrix theory on electronic transport through graphene waveguide
Haidong Li, Lin Wang, Zhihuan Lan +1
In the effective mass approximation, electronic property in graphene can be characterized by the relativistic Dirac equation. Within such a continuum model we investigate the elect…
Topologies on Quantum Effects
Zhihao Ma, Sen Zhu
Quantum effects play an important role in quantum measurement theory. The set of all quantum effects can be organized into an algebraical structure called effect algebra. In this p…
Al doped graphene: A promising material for hydrogen storage at room temperature
Z. M. Ao, Q. Jiang, R. Q. Zhang +2
A promising material for hydrogen storage at room temperature-Al doped graphene was proposed theoretically by using density functional theory calculation. Hydrogen storage capacity…
Spin-dependent electron transport through a parallel double-quantum-dot structure
Weijiang Gong, Yisong Zheng
Electron transport properties in a parallel double-quantum-dot structure with three-terminals are theoretically studied. By introducing a local Rashba spin-orbit coupling, we find…
Contact conductance between graphene and quantum wires
Haidong Li, Yisong Zheng
The contact conductance between graphene and two quantum wires which serve as the leads to connect graphene and electron reservoirs is theoretically studied. Our investigation indi…