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**Questions and Answers / Re: Negative differential conductance in perfect zigzag GNR?**

« **on:**July 2, 2013, 01:53 »

>The I-V characteristics of perfect zigzag graphene ribbons should exhibit linear response.

This is the case only when N is odd in the literature and your structure is not odd but even.

I think what is importance is not negative differential conductance but that conductance is strongly reduced when N is even.

This is the case only when N is odd in the literature and your structure is not odd but even.

I think what is importance is not negative differential conductance but that conductance is strongly reduced when N is even.