期刊
APPLIED PHYSICS LETTERS
卷 107, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4927394
关键词
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资金
- Research Grants Council of the Hong Kong Administrative Region [PolyU 5016/08P, PolyU 5242/11E, B-Q10N, B-Q26D]
- NSF of China [11374225]
- Innovative Technology Fund [ITS/558/09, ZP2U, K.11.27.ZP2U]
Palladium (Pd) film containing nanogaps of well controlled dimension was fabricated on a Si wafer having a high-aspect-ratio micropillar. The Pd film was arranged to experience hydrogen (H-2)-induced volume expansion. (i) If the nanogap is kept open, its width is narrowed down. A discharge current was generated to give a strong, fast, and repeatable on-off type resistive switching response. (ii) If the nanogap is closed, the cross section of the conduction path varies to give continuous H-2-concentration dependent resistive response. The influence of stresses and related physical mechanisms are discussed. (C) 2015 AIP Publishing LLC.
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