Jul 4, 2016 - ... bottom gates, VTG, VBG,. arXiv:1607.00784v1 [cond-mat.mes-hall] 4 Jul 2016 .... ters which best reproduce the locations of LL crossings at D = 0 [Fig. 1(c)]. .... should host interesting fractional quantum Hall states, which should ... neering Center Shared Experimental Facilities supported by the National ...