Extended Data Fig. 2: QOs in Devices 2 and 3 (θ ≈ 1.5°).

a,\(\,{B}_{z}^{ac}(x,\nu )\) in Device 2 at \(D=0\) and \({B}_{a}=\) 250 mT upon hole and electron doping. b, Cross-section of \({B}_{z}^{ac}(\nu )\) along the white dashed line in (a). c, Fraction of carriers added to the system that go to the Dirac sector, \(d{n}_{D}/dn\,\) vs. doping, extracted from (b). Green circles highlight peaks in \(d{n}_{D}/dn\) near \(\nu =2\) and 3 indicating symmetry breaking. d, \({B}_{z}^{ac}(\nu )\) in Device 3. e, \(d{n}_{D}/dn\,\) vs. doping extracted from (d). Green circles highlight peaks in \(d{n}_{D}/dn\) near \(\nu =\) 2 and 3.