دورية أكاديمية
Data-driven exploration of new pressure-induced superconductivity in PbBi2Te4
| العنوان: | Data-driven exploration of new pressure-induced superconductivity in PbBi2Te4 |
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| المؤلفون: | Ryo Matsumoto, Zhufeng Hou, Masanori Nagao, Shintaro Adachi, Hiroshi Hara, Hiromi Tanaka, Kazuki Nakamura, Ryo Murakami, Sayaka Yamamoto, Hiroyuki Takeya, Tetsuo Irifune, Kiyoyuki Terakura, Yoshihiko Takano |
| المصدر: | Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 909-916 (2018) |
| بيانات النشر: | Taylor & Francis Group, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Biotechnology |
| مصطلحات موضوعية: | Data-driven, superconductivity, high-pressure, Materials of engineering and construction. Mechanics of materials, TA401-492, Biotechnology, TP248.13-248.65 |
| الوصف: | Candidate compounds for new thermoelectric and superconducting materials, which have narrow band gap and flat bands near band edges, were exhaustively searched by the high-throughput first-principles calculation from an inorganic materials database named AtomWork. We focused on PbBi2Te4 which has the similar electronic band structure and the same crystal structure with those of a pressure-induced superconductor SnBi2Se4 explored by the same data-driven approach. The PbBi2Te4 was successfully synthesized as single crystals using a melt and slow cooling method. The core level X-ray photoelectron spectroscopy analysis revealed Pb2+, Bi3+ and Te2- valence states in PbBi2Te4. The thermoelectric properties of the PbBi2Te4 sample were measured at ambient pressure and the electrical resistance was also evaluated under high pressure using a diamond anvil cell with boron-doped diamond electrodes. The resistance decreased with increasing of the pressure, and pressure-induced superconducting transitions were discovered at 2.5 K under 10 GPa. The maximum superconducting transition temperature increased up to 8.4 K at 21.7 GPa. The data-driven approach shows promising power to accelerate the discovery of new thermoelectric and superconducting materials. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1468-6996 1878-5514 14686996 |
| Relation: | https://doaj.org/toc/1468-6996; https://doaj.org/toc/1878-5514 |
| DOI: | 10.1080/14686996.2018.1548885 |
| URL الوصول: | https://doaj.org/article/bf615ad2ea064e0bb3ac765b03c789fd |
| رقم الأكسشن: | edsdoj.bf615ad2ea064e0bb3ac765b03c789fd |
| قاعدة البيانات: | Directory of Open Access Journals |
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Full Text Finder | تدمد: | 14686996 18785514 |
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| DOI: | 10.1080/14686996.2018.1548885 |