Effects of in-plane magnetic fields on the canted antiferromagnetic phase in the bilayer v=2 quantum hall state grdreasdg

摘要

We investigate effects of an in-plane magnetic field B-parallel to on the canted anti ferromagnetic phase in the v = 2 bilayer quantum Hall (QH) state by the magnetotransport measurements under tilted magnetic fields. We elaborately measure the activation energy of the v = 2 bilayer QH state as a function of the total density n(T) for several tilting angles. We build up the phase diagram of the v = 2 bilayer QH state in the B-parallel to - n(T) plane.