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Giant Nernst-Ettingshausen oscillations in classically strong magnetic fields

posted Dec 23, 2010, 3:42 AM by Igor Lukyanchuk   [ updated Dec 24, 2010, 1:42 AM ]
(Featured article) We consider the Nernst-Ettingshausen (NE) effect in the presence of classically strong magnetic fields for a quasi-two dimensional system with a parabolic or linear dispersion of carriers. We show that the occurring giant oscillations of the NE coefficient are coherent with the recent experimental observation in graphene, graphite and bismuth. In the 2D case we find the exact shape of these oscillations and show that their magnitude decreases/increases with enhancement of the Fermi energy for Dirac fermions/normal carriers. With a crossover to 3D spectrum the phase of oscillations shifts, their amplitude decreases and the peaks become asymmetric.
Authors: Igor A. Luk'yanchuk, Andrei A. Varlamov, Alexey V. Kavokin
Published in arXiv:1011.6067v1 on 28 Nov 2010
Igor Lukyanchuk,
Dec 23, 2010, 3:53 AM