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An Efficient Explicit Approach for Analysis of Carbon Nanotube (CNT) Transistors

An efficient explicit numerical algorithm for analysis of the Schrödinger-Maxwell system in a carbon nanotube (CNT) transistor is proposed. For the Schrödinger part, the Schrödinger equation couples directly to the vector and scalar potentials (A and ϕ). And for the Maxwell part, A and ϕ are directly used. The generalized finite-difference time-domain (G-FDTD) method is proposed for the Schrödinger part and the Maxwell part. Numerical results show that the proposed scheme has higher efficiency compared with the conventional FDTD method.