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DOI | 10.1126/science.aaf8227 |
Evidence for bulk superconductivity in pure bismuth single crystals at ambient pressure | |
Prakash, Om; Kumar, Anil; Thamizhavel, A.; Ramakrishnan, S. | |
2017-01-06 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6320页码:52-+ |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | At ambient pressure, bulk rhombohedral bismuth is a semimetal that remains in the normal state down to at least 10 millikelvin. Superconductivity in bulk bismuth is thought to be unlikely because of the extremely low carrier density. We observed bulk superconductivity in pure bismuth single crystals below 0.53 millikelvin at ambient pressure, with an estimated critical magnetic field of 5.2 microteslas at 0 kelvin. Superconductivity in bismuth cannot be explained by the conventional Bardeen-Cooper-Schrieffer theory because its adiabatic approximation does not hold true for bismuth. Future theoretical work will be needed to understand superconductivity in the nonadiabatic limit in systems with low carrier densities and unusual band structures, such as bismuth. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000391739900040 |
WOS关键词 | NONADIABATIC SUPERCONDUCTIVITY ; NANOWIRE ARRAYS ; BI ; TEMPERATURES ; ELECTRONS ; MAGNETORESISTANCE ; SEMICONDUCTORS ; TRANSITION ; SEMIMETALS ; TRANSPORT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195168 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Mumbai 400005, Maharashtra, India |
推荐引用方式 GB/T 7714 | Prakash, Om,Kumar, Anil,Thamizhavel, A.,et al. Evidence for bulk superconductivity in pure bismuth single crystals at ambient pressure[J]. SCIENCE,2017,355(6320):52-+. |
APA | Prakash, Om,Kumar, Anil,Thamizhavel, A.,&Ramakrishnan, S..(2017).Evidence for bulk superconductivity in pure bismuth single crystals at ambient pressure.SCIENCE,355(6320),52-+. |
MLA | Prakash, Om,et al."Evidence for bulk superconductivity in pure bismuth single crystals at ambient pressure".SCIENCE 355.6320(2017):52-+. |
条目包含的文件 | 条目无相关文件。 |
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