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arXiv 0812.0123cond-mat.mes-hall
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电子结构调制晶体管的可能性

On the Possibility of an Electronic-structure Modulation Transistor

Hassan Raza, Tehseen Z. Raza, Tuo-Hung Hou, Edwin C. kan

摘要:

我们提出了一种新的电子结构调制晶体管(EMT),它可能被用于后CMOS逻辑应用。该器件的原理是基于由栅极电压在沟道中的带隙或近带隙局域态的带宽调制。一个单带紧束缚方法结合非平衡格林函数的量子输运形式主义预测的IV特性。我们的目标是确认EMT是否具有自增益,以及它是否可以在低电源电压下克服2.3kT/decade热极限。导通电流取决于状态的带宽,并且受到单个带的电导量子的限制。关断电流由栅极泄漏和通过较高能带的隧穿设置,如果这些能带比局域态的能级高几eV,则预期关断电流很小。

英文摘要:

We present a novel electronic-structure modulation transistor (EMT), which can possibly be used for post-CMOS logic applications. The device principle is based on the bandwidth modulation of a midgap or near-midgap localized state in the channel by a gate voltage. A single-band tight-binding method coupled with non-equilibrium Green's function formalism for quantum transport is employed to predict the IV characteristics. Our objective is to confirm if an EMT has a self gain and if it can overcome the 2.3kT/decade thermal limit with low supply voltage. The ON current depends on the bandwidth of the state and is limited by the quantum of conductance for a single band. The OFF current is set by the gate leakage and tunneling through the higher bands, which is expected to be small if these bands are a few eV above the energy level of the localized state.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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