| Pressure tuning of superconductivity in Mo8Ga41 single crystals | |
| Ying Zhou4; Yonghui Zhou1; Chunhua Chen1; Xuliang Chen1; Chao An4; Lili Zhang5; Wenbin Wu1,2,3,4; Zhitao Zhang1; Zhaorong Yang1,3,4 | |
| 刊名 | PHYSICAL REVIEW B
 |
| 2020-10-19 | |
| 卷号 | 102 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.102.134512 |
| 通讯作者 | Zhang, Zhitao(ztzhang@hmfl.ac.cn) |
| 英文摘要 | We report on pressure tuning of superconductivity in a strongly coupled superconductor Mo8Ga41 with a critical temperature T-c similar to 9.8K. Resistance measurements show that Tc is suppressed to 3.6 K at 19 GPa followed by a nonmonotonic variation at higher pressures. Synchrotron x-ray diffraction experiments reveal an amorphization taking place at the critical pressure P-c similar to 19 GPa. As comparing with MgB2, the Mo8Ga41 shows a relative low decreasing rate of T-c, which might be attributed to its unique vertex-sharing type of cluster architecture. Survival of superconductivity across the crystalline to amorphous transition indicates that, although long-range structural order of endohedral Ga clusters is destroyed, short-range-ordered intracluster structure still exists and allows for local Cooper pairing. Due to presence of disorders in the amorphous phase, establishment of Cooper pair coherence is shifted to lower temperatures, which causes unusual transport behaviors near T-c, e.g., the anomalous resistance peak and dip. The amorphous superconducting phase is able to be retained to ambient pressure and therefore provides an ideal platform to study disorder effects on superconductivity. |
| 资助项目 | National Key Research and Development Program of China[2018YFA0305704] ; National Key Research and Development Program of China[2016YFA0401804] ; National Natural Science Foundation of China[U1632275] ; National Natural Science Foundation of China[11874362] ; National Natural Science Foundation of China[U1832209] ; National Natural Science Foundation of China[11704387] ; National Natural Science Foundation of China[U1932152] ; National Natural Science Foundation of China[11804341] ; National Natural Science Foundation of China[11804344] ; National Natural Science Foundation of China[U19A2093] ; National Natural Science Foundation of China[11605276] ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology[2018ZYFX002] ; Users with Excellence Project of Hefei Science Center CAS[2018HSC-UE012] ; Natural Science Foundation of Anhui Province[2008085QA40] ; Natural Science Foundation of Anhui Province[1808085MA06] ; Natural Science Foundation of Anhui Province[1908085QA18] ; High Magnetic Field Laboratory of Anhui Province |
| WOS关键词 | CRITICAL-FIELD ; TEMPERATURE ; DEPENDENCE |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000582668300003 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology ; Users with Excellence Project of Hefei Science Center CAS ; Natural Science Foundation of Anhui Province ; High Magnetic Field Laboratory of Anhui Province |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/92748]  |
| 专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
| 通讯作者 | Zhitao Zhang; Zhaorong Yang |
| 作者单位 | 1.Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China 2.Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China 3.Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China 4.Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China 5.Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China |
| 推荐引用方式 GB/T 7714 | Ying Zhou,Yonghui Zhou,Chunhua Chen,et al. Pressure tuning of superconductivity in Mo8Ga41 single crystals[J]. PHYSICAL REVIEW B,2020,102. |
| APA | Ying Zhou.,Yonghui Zhou.,Chunhua Chen.,Xuliang Chen.,Chao An.,...&Zhaorong Yang.(2020).Pressure tuning of superconductivity in Mo8Ga41 single crystals.PHYSICAL REVIEW B,102. |
| MLA | Ying Zhou,et al."Pressure tuning of superconductivity in Mo8Ga41 single crystals".PHYSICAL REVIEW B 102(2020). |
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