Reversible Resistive Switching, in Electrically Nonhomogeneous La0.67Ca0.33MnO3 Thin Films by Short Electrical Pulses

A. Lučun a, O. Kiprijanovič a, S. Ašmontas a, F. Anisimovas a, A. Maneikis a, A. Sužied.lis a, b and B. Vengalis a, b a Semiconductor Physics Institute, A. Goštauto 11, 01108 Vilnius, Lithuania b Vilnius Gediminas Technical University, Saulėtekio al. 11, LT-2040 Vilnius, Lithuania

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Received: 26 08 2007;

Resistance changes in thin electrically nonhomogeneous La0.67Ca0.33MnO3 films were investigated using electrical pulses of nanosecond duration in the 80-300 K temperature range. Two types of reversible switching to higher resistive states with different starting temperature induced by series of the positive pulses were observed. Possible mechanisms of the resistance switching by short electrical pulses in the vicinity of Tm and at 80-90 K are discussed.

DOI: 10.12693/APhysPolA.113.1059 PACS numbers: 75.47.Gk, 75.47.Lx, 07.57.Kp