My. Azbel et L. Kheifits, LINEAR TEMPERATURE-DEPENDENCE OF RESISTIVITY IN A 3-DIMENSIONAL DISORDERED SYSTEM, Physical review. B, Condensed matter, 50(7), 1994, pp. 4951-4953
When the ensemble average of a disordered system is periodic, its thre
e-dimensional energy spectrum may have multiple mobility edges. Then s
trong coupling yields narrow metallic bands adjacent on wide localized
state regions. This leads to a linear temperature dependence of the r
esistivity.