TY - JOUR
T1 - System Bi2-xPbxPt2-xRuxO7-z
T2 - A pyrochlore series with a metal-insulator transition
AU - Mayer-Von Kürthy, G.
AU - Wischert, W.
AU - Kiemel, R.
AU - Kemmler-Sack, S.
AU - Gross, R.
AU - Huebener, R. P.
PY - 1989/3
Y1 - 1989/3
N2 - The pyrochlore compounds Bi2Pt2O7 (insulator) and Pb2Ru2O6.5 (metallic conductor) form a continuous series of solid solutions Bi2-xPbxPt2-xRuxO7-z. Increasing substitution of the platinum by ruthenium results in a gradual insulator-metal transition. Metallic conductivity is found for a substitution level of x ≳ 1.5. The presence of variable range hopping conductivity in the insulating regime strongly suggests that the metal-insulator transition is of Anderson type.
AB - The pyrochlore compounds Bi2Pt2O7 (insulator) and Pb2Ru2O6.5 (metallic conductor) form a continuous series of solid solutions Bi2-xPbxPt2-xRuxO7-z. Increasing substitution of the platinum by ruthenium results in a gradual insulator-metal transition. Metallic conductivity is found for a substitution level of x ≳ 1.5. The presence of variable range hopping conductivity in the insulating regime strongly suggests that the metal-insulator transition is of Anderson type.
UR - http://www.scopus.com/inward/record.url?scp=0024620106&partnerID=8YFLogxK
U2 - 10.1016/0022-4596(89)90247-8
DO - 10.1016/0022-4596(89)90247-8
M3 - Article
AN - SCOPUS:0024620106
SN - 0022-4596
VL - 79
SP - 34
EP - 45
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -