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题名: Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals
作者: Song, Shuang;  Wang, Libin;  Xu, Chuan;  Cheng, Hui-Ming;  Ren, Wencai;  Kang, Ning
发表日期: 2017-11-1
摘要: Ultrathin transition metal carbides are a class of emerging 2-D materials with many intriguing properties and applications. Here, we report the transport measurements on high-quality ultrathin Mo2C crystals, which are synthesized by a chemical vapor deposition method. We demonstrate 2-D nature of the observed superconductivity in ultrathin Mo2C crystals, being consistent with a Berezinskii Kosterlitz Thouless transition. As the sample thickness decreases, the Mo2C crystals exhibit negative magnetoresistance behavior at low magnetic fields deep in the superconducting state. We attribute these results to strong phase fluctuations of the superconducting order parameters near the superconductor insulator transition. Our results demonstrate that these high-quality ultrathin Mo2C crystals provide an appealing platform to gain insights into 2-D superconductivity in a clean system.
刊名: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Song, Shuang,Wang, Libin,Xu, Chuan,et al. Magnetotransport In Ultrathin 2-d Superconducting Mo2c Crystals[J]. Ieee-inst Electrical Electronics Engineers Inc,2017,53(11):-.

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