Magnetic confinement of massless Dirac fermions in graphene
Magnetic confinement of massless Dirac fermions in graphene
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DOI：
10.1103/physrevlett.98.066802
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发表时间：
2007-02-09
影响因子：
8.6
通讯作者：
Egger, R.
中科院分区：
文献类型：
--
作者：
De Martino, A.;Dell'Anna, L.;Egger, R.
由于克莱因隧穿，静电势不能限制狄拉克电子。我们发现，它是可能的限制在单层石墨烯片的非均匀磁场的狄拉克费米子。这允许人们通过磁势垒在石墨烯中设计介观结构，例如，量子点或量子点接触。
Because of Klein tunneling, electrostatic potentials are unable to confine Dirac electrons. We show that it is possible to confine massless Dirac fermions in a monolayer graphene sheet by inhomogeneous magnetic fields. This allows one to design mesoscopic structures in graphene by magnetic barriers, e.g., quantum dots or quantum point contacts.