In good news, my theory also explains that this dramatic increase in resistivity could be mitigated by carefully tuning the free electron concentration in the silicon nano-films, e.g., via doping.

Figure 2a, b shows the temperature dependence of resistivity in Sample 1 and Sample 2 at different fields. The blue curves at H = 0 are metallic from T = 300 K to 2 K. A magnetic field induces an ...