Pakhomov, A.B.; McLachlan, D.S.; Oblakova, I.I.; … - In: Physica A: Statistical Mechanics and its Applications 211 (1994) 4, pp. 393-398
DC resistance and magnetoresistance measurements are performed on insulating AlAl2O3 samples which are prepared from conducting metal-insulator granular composite samples by subjecting them to high density current pulses. This treatment drastically reduces the room-temperature conductivity of...