Localization in a nondegenerate two-dimensional electron gas
Magnetoresistance measurements of an electron gas formed on a solid-hydrogen substrate are reported as a function of surface disorder. High-mobility surfaces display an essentially classical positive B2 field dependence. Lower-mobility surfaces, however, are characterized by the appearance of a negative magnetoresistance for fields less than 0.2 T, in good agreement with present weak-localization theories. On extremely disordered surfaces we find large increases in resistivity but a finite residual electron diffusivity D mel. © 1987 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Adams, P., & Paalanen, M. (1987). Localization in a nondegenerate two-dimensional electron gas. Physical Review Letters, 58 (20), 2106-2109. https://doi.org/10.1103/PhysRevLett.58.2106