Superconductivity in textured Bi clusters/Bi2Te3 films

Phuoc Huu Le, Wen Yen Tzeng, Hsueh Ju Chen, Chih-Wei Luo, Jiunn-Yuan Lin, Jih-Perng Leu

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

We report superconductivity at an onset critical temperature below 3.1 K in topological insulator ∼200-nm-thick Bi2Te3 thin films grown by pulsed laser deposition. Using energy-dispersive X-ray spectroscopy elemental mapping and Auger electron spectroscopy elemental depth profiling, we clearly identified bismuth (Bi) precipitation and Bi cluster signatures. Superconductivity in the Bi2Te3 films was attributed to the proximity effect of Bi clusters precipitated on the surface of the Bi2Te3 films.

原文English
文章編號096105
頁數7
期刊APL Materials
2
發行號9
DOIs
出版狀態Published - 1 1月 2014

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