Quantum Hall ferromagnet in magnetically-doped quantum wells

Single-valley quantum Hall ferromagnet in a dilute MgxZn1−xO/ZnO strongly correlated two-dimensional electron system

“…The resistance spikes appear beyond Bcosθ ~ 1.5 T (ν < 5), which suggests that the condition for Stoner ferromagnetism is fulfilled in this range. 23 Such resistance spikes have also been experimentally observed in other 2D systems [24][25][26][27][28][29] and were commonly accompanied with hysteresis. 26 However, in our measurement, hysteresis is absent, as shown in the right inset of Fig.…”

Dynamic nuclear polarization and nuclear magnetic resonance in the simplest pseudospin quantum Hall ferromagnet

“…However, the previous studies of the ν = 2 QHF have been limited to conventional magnetotransport measurements. 13,20 The dependence of R xx on B ^ around ν = 2 is shown in Fig. 2(a).…”