data = loadtxt('./t2_2_gate_map.txt', skiprows = 1)
x = (data[:, 0]/1e12)/ns_t22*4 #don't have raw gate voltages here, can get them from Minhao if necessary
y = -data[:, 1]
Rxx = data[:, 2]/1e3
Rxy = data[:, 3]/1e3


