期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 21, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/21/10/102201
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资金
- UK Engineering and Physical Sciences Research Council
- Engineering and Physical Sciences Research Council [GR/S96883/01] Funding Source: researchfish
Massless Dirac particles cannot be confined by an electrostatic potential. This is a problem for making graphene quantum dots but confinement can be achieved with a magnetic field and here general conditions for confined and deconfined states are derived. There is a class of potentials for which the character of the state can be controlled at will. Then a confinement deconfinement transition occurs which allows the Klein paradox to be probed experimentally in graphene dots. A dot design suitable for this experiment is presented.
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