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Lett. 2004, 85 (23), 5655-5657. electrical properties of the PRM cells by modulating the con (16)Szot, K; Speier, W; BihImayer, G. Waser, R. Nat. Mater. 2006, centration of oxygen vacancies in the ZnO NW. A custom 5(4),312-320 be card was used to access the (17)Sakamoto, T Sunamura, H; Kawaura, PRM cells in the temperature-dependence I-V characterization. Nakayama, T. Aono, M. Appl. Phys. Lett. 2003, 82 Electromechanical measurements were then carried out with a (18)Wang, Z. L Nano Today 2010, 5,$40-552. mputer-controlled data acquisition system and a 3-axis linear (19) Wu, W. Z; Wei, Y G; Wang, Z L. Adv. Mater. 2010, 22 (42), stage for investigating the stain-modulated resistive switching characteristics of the prm cells (20)Wang, Z L Nano Today 2010, 5, 512-514 (21)Pan, Z W; Dai, Z R; Wang, Z. L. Science 2001, 291(5510), ■ ASSOC| ATED CONTENT (22) Scott,J C. Science2004304(5667),62-63. (23)Linn, E; Rosezin, R; Kugeler, C Waser, R. Nat. Mater. 2010, 9 S Supporting Information. 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