Interplay between real and pseudomagnetic field in graphene with strain

K J Kim, Y M Blanter, Kang-Hun Ahn

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We investigate electric and magnetic properties of graphene with rotationally symmetric strain. The strain generates a large pseudomagnetic field with alternating sign in space, which forms a strongly confined quantum dot connected to six chiral channels. The orbital magnetism, degeneracy, and channel opening can be understood from the interplay between the real and pseudomagnetic fields which have different parities under time reversal and mirror reflection. While the orbital magnetic response of the confined state is diamagnetic, it can be paramagnetic if there is an accidental degeneracy with opposite mirror reflection parity.
Original languageEnglish
Article number081401
JournalPhysical Review B
Issue number8
Publication statusPublished - 5 Aug 2011


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