TY - JOUR
T1 - Interplay between real and pseudomagnetic field in graphene with strain
AU - Kim, K J
AU - Blanter, Y M
AU - Ahn, Kang-Hun
PY - 2011/8/5
Y1 - 2011/8/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=80052448235&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1103/PhysRevB.84.081401
U2 - 10.1103/PhysRevB.84.081401
DO - 10.1103/PhysRevB.84.081401
M3 - Article
VL - 84
JO - Physical Review B : Condensed Matter and Materials Physics
JF - Physical Review B : Condensed Matter and Materials Physics
SN - 1098-0121
IS - 8
M1 - 081401
ER -