TY - JOUR
T1 - Effect of Spin-Orbit Interaction on the Metal-Insulator Transition in Doped Silicon
AU - Kaveh, M.
AU - Mott, N. F.
PY - 1987/9
Y1 - 1987/9
N2 - We show that in disordered metallic systems, spin-orbit interactions lead to the existence of two metallic phases separated in temperature. The low-temperature metallic phase arises from spin-orbit interactions. The crossover temperature is proportional to (Z — Z')2 (Z is the atomic number of the donor and Z' that of the matrix) and is expected to be observable for donors with large atomic numbers. The presence of two metallic phases implies two mobility edges, existing at different temperatures, and affecting the conductivity when the Fermi energy EFlies below the mobility edge Ec. We thus predict anomalies in the conductivity in this range of concentration, consistent with the measurements of Long and Pepper on Si: Sb.
AB - We show that in disordered metallic systems, spin-orbit interactions lead to the existence of two metallic phases separated in temperature. The low-temperature metallic phase arises from spin-orbit interactions. The crossover temperature is proportional to (Z — Z')2 (Z is the atomic number of the donor and Z' that of the matrix) and is expected to be observable for donors with large atomic numbers. The presence of two metallic phases implies two mobility edges, existing at different temperatures, and affecting the conductivity when the Fermi energy EFlies below the mobility edge Ec. We thus predict anomalies in the conductivity in this range of concentration, consistent with the measurements of Long and Pepper on Si: Sb.
UR - http://www.scopus.com/inward/record.url?scp=0023417893&partnerID=8YFLogxK
U2 - 10.1080/09500838708205256
DO - 10.1080/09500838708205256
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AN - SCOPUS:0023417893
SN - 0950-0839
VL - 56
SP - 97
EP - 102
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
IS - 3
ER -