Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice
High pressure electric transport and synchrotron x-ray diffraction (XRD) measurements together with the first-principles calculations are performed on a shandite compound Pd _3 Pb _2 Se _2 which contains the Kagome lattice of the transition metal Pd. A pressure-induced superconducting transition is...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/abcef6 |
| _version_ | 1827873002046357504 |
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| author | F H Yu X Y Hua T Chen J Sun M Z Shi W Z Zhuo D H Ma H H Wang J J Ying X H Chen |
| author_facet | F H Yu X Y Hua T Chen J Sun M Z Shi W Z Zhuo D H Ma H H Wang J J Ying X H Chen |
| author_sort | F H Yu |
| collection | DOAJ |
| description | High pressure electric transport and synchrotron x-ray diffraction (XRD) measurements together with the first-principles calculations are performed on a shandite compound Pd _3 Pb _2 Se _2 which contains the Kagome lattice of the transition metal Pd. A pressure-induced superconducting transition is observed above 25 GPa, for the first time in the shandite compounds, although the crystal structure of the compound seems to be very robust and persists up to the highest pressure in the XRD study (76.3 GPa). The superconducting transition temperature is about 2.2 K and almost does not change with pressure. The carrier density suddenly increases around 20 GPa possibly due to the emergence of two electron pockets at the Γ point. Our work indicates that the superconductivity in Pd _3 Pb _2 Se _2 is strongly correlated to its electronic structure. |
| first_indexed | 2024-03-12T16:31:27Z |
| format | Article |
| id | doaj.art-5cec830b981945cb8f708443469380c2 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:31:27Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-5cec830b981945cb8f708443469380c22023-08-08T15:29:12ZengIOP PublishingNew Journal of Physics1367-26302020-01-01221212301310.1088/1367-2630/abcef6Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome latticeF H Yu0X Y Hua1T Chen2J Sun3M Z Shi4W Z Zhuo5D H Ma6H H Wang7J J Ying8https://orcid.org/0000-0002-0104-9098X H Chen9https://orcid.org/0000-0001-6947-1407Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing, 210093, People’s Republic of ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing, 210093, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaHigh pressure electric transport and synchrotron x-ray diffraction (XRD) measurements together with the first-principles calculations are performed on a shandite compound Pd _3 Pb _2 Se _2 which contains the Kagome lattice of the transition metal Pd. A pressure-induced superconducting transition is observed above 25 GPa, for the first time in the shandite compounds, although the crystal structure of the compound seems to be very robust and persists up to the highest pressure in the XRD study (76.3 GPa). The superconducting transition temperature is about 2.2 K and almost does not change with pressure. The carrier density suddenly increases around 20 GPa possibly due to the emergence of two electron pockets at the Γ point. Our work indicates that the superconductivity in Pd _3 Pb _2 Se _2 is strongly correlated to its electronic structure.https://doi.org/10.1088/1367-2630/abcef6superconductivityhigh pressureshandite compoundKagome lattice |
| spellingShingle | F H Yu X Y Hua T Chen J Sun M Z Shi W Z Zhuo D H Ma H H Wang J J Ying X H Chen Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice New Journal of Physics superconductivity high pressure shandite compound Kagome lattice |
| title | Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice |
| title_full | Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice |
| title_fullStr | Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice |
| title_full_unstemmed | Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice |
| title_short | Pressure-induced superconductivity in a shandite compound Pd3Pb2Se2 with the Kagome lattice |
| title_sort | pressure induced superconductivity in a shandite compound pd3pb2se2 with the kagome lattice |
| topic | superconductivity high pressure shandite compound Kagome lattice |
| url | https://doi.org/10.1088/1367-2630/abcef6 |
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