ON THE DE HAAS-VAN ALPHEN OSCILLATION IN 2D

摘要

The statistical weight W as a function of energy E for quasielectrons withmass m~* subject to a fixed magnetic field B isW/A=(m~* /πh~2)E (eB/π~2h)Σ_(K=1)~∞(-1)~vv~(-1)sin(2πvE/hω_c), where A is the sample area, and ω_c≡eB /m~*the cyclotron frequency. Significantly, there is no Landau term proportional to B~2in 2D.This leads to the conclusion that the 2D electron system is always paramagnetic, butshows a magnetic oscillation.