期刊
APPLIED PHYSICS LETTERS
卷 106, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4905868
关键词
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资金
- National Key Projects for Basic Research of China [2013CB922103, 2011CB922103, 2014CB921103]
- National Natural Science Foundation of China [91421109, 11023002, 11134005, 61176088, 11222438, 11274003]
- PAPD project
- Natural Science Foundation of Jiangsu Province [BK20130054, BC2013118]
- Fundamental Research Funds for the Central Universities
We report on the unexpected increase in the dephasing lengths of a graphene sheet caused by the deposition of Pd nanoclusters, as demonstrated by weak localization measurements. The dephasing lengths reached saturated values at low temperatures. Theoretical calculations indicate the p-type charge transfer from the Pd clusters, which contributes more carriers. The saturated values of dephasing lengths often depend on both the carrier concentration and mean free path. Although some impurities are increased as revealed by decreased mobilities, the intense charge transfer leads to the improved saturated values and subsequent improved dephasing lengths. (C) 2015 AIP Publishing LLC.
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