Effect of Disorder on the Conductance of Spin Field Effect Transistors (SPINFET)

M. Cahay; S. Bandyopadhyay

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Effect of Disorder on the Conductance of Spin Field Effect Transistors (SPINFET)

M. Cahay·S. Bandyopadhyay

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Abstract

We show that the conductance of Spin Field Effect Transistors (SPINFET) [Datta and Das, Appl. Phys. Lett., Vol. 56, 665 (1990)] is affected by a single (non-magnetic) impurity in the transistor's channel. The extreme sensitivity of the amplitude and phase of the transistor's conductance oscillations to the location of a single impurity in the channel is reminiscent of the phenomenon of universal conductance fluctuations in mesoscopic samples and is extremely problematic as far as device implementation is concerned.

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M. Cahay, S. Bandyopadhyay. 2003-06-11. Effect of Disorder on the Conductance of Spin Field Effect Transistors (SPINFET). https://arxiv.org/abs/cond-mat/0306283

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