Generating quantizing pseudomagnetic fields by bending graphene ribbons
Generating quantizing pseudomagnetic fields by bending graphene ribbons
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DOI：
10.1103/physrevb.81.035408
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发表时间：
2010-01-01
影响因子：
3.7
通讯作者：
Novoselov, K. S.
中科院分区：
文献类型：
--
作者：
Guinea, F.;Geim, A. K.;Novoselov, K. S.
我们分析了在石墨烯中产生均匀伪磁场所需的机械变形。结果表明，如果一个带是弯曲成圆弧面内，这可能会导致超过10 T，这是足够的伪朗道量子化的观察领域。弧的几何形状比以前建议的更简单，在我们看来，有更好的机会很快在实验中实现。在这种几何形状中，由膨胀引起的标量势的影响可以忽略不计。
We analyze the mechanical deformations that are required to create uniform pseudomagnetic fields in graphene. It is shown that, if a ribbon is bent in-plane into a circular arc, this can lead to fields exceeding 10 T, which is sufficient for the observation of pseudo-Landau quantization. The arc geometry is simpler than those suggested previously and, in our opinion, has much better chances to be realized experimentally soon. The effects of a scalar potential induced by dilatation in this geometry is shown to be negligible.