Indications for a metal-insulator transition in quasicrystalline i-AlPdRe
LEPES-CNRS - BP 166, F-38042 Grenoble Cedex 9, France
2 SNCMP-INSA - avenue de Rangueil, F-31077 Toulouse Cedex, France
Accepted: 6 June 1997
We present indications for a metal-insulator transition in the icosahedral AlPdRe phase of high structural quality. We follow the conductivity through the transition and its dependence on temperature and magnetic field in a series of i-AlPdRe samples. Features typical for systems on both sides of the metal-insulator transition are found. Moreover, the variation of conductivity with temperature is very unusual with varying like () in a wide temperature range from 7 K to 700 K.
PACS: 61.44.Br – Quasicrystals / 71.30.+h – Metal-insulator transitions and other electronic transitions / 72.15.-v – Electronic conduction in metals and alloys
© EDP Sciences, 1997