Superconductivity above 200 K discovered in superhydrides of calcium

Zhiwen Li; Xin He; Changling Zhang; Xiancheng Wang; Sijia Zhang; Yating Jia; Shaomin Feng; Ke Lu; Jianfa Zhao; Jun Zhang; Baosen Min; Youwen Long; Richeng Yu; Luhong Wang; Meiyan Ye; Zhanshuo Zhang; Vitali Prakapenka; Stella Chariton; Paul A. Ginsberg; Jay Bass; Shuhua Yuan; Haozhe Liu; Changqing Jin

doi:10.1038/s41467-022-30454-w

Superconductivity above 200 K discovered in superhydrides of calcium

Zhiwen Li, Xin He, Changling Zhang, Xiancheng Wang, Sijia Zhang, Yating Jia, Shaomin Feng, Ke Lu, Jianfa Zhao, Jun Zhang, Baosen Min, Youwen Long, Richeng Yu, Luhong Wang, Meiyan Ye, Zhanshuo Zhang, Vitali Prakapenka, Stella Chariton, Paul A. Ginsberg, Jay BassShuhua Yuan, Haozhe Liu, Changqing Jin

Earth Science and Environmental Change

Research output: Contribution to journal › Article › peer-review

Abstract

Searching for superconductivity with T_c near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with maximum critical temperature (T_c) above 210 K in calcium superhydrides, the new alkali earth hydrides experimentally showing superconductivity above 200 K in addition to sulfur hydride & rare-earth hydride system. The materials are synthesized at the synergetic conditions of 160~190 GPa and ~2000 K using diamond anvil cell combined with in-situ laser heating technique. The superconductivity was studied through in-situ high pressure electric conductance measurements in an applied magnetic field for the sample quenched from high temperature while maintained at high pressures. The upper critical field Hc(0) was estimated to be ~268 T while the GL coherent length is ~11 Å. The in-situ synchrotron X-ray diffraction measurements suggest that the synthesized calcium hydrides are primarily composed of CaH₆ while there may also exist other calcium hydrides with different hydrogen contents.

Original language	English (US)
Article number	2863
Journal	Nature communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-022-30454-w
State	Published - Dec 2022

ASJC Scopus subject areas

General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy

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10.1038/s41467-022-30454-w

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Li, Z., He, X., Zhang, C., Wang, X., Zhang, S., Jia, Y., Feng, S., Lu, K., Zhao, J., Zhang, J., Min, B., Long, Y., Yu, R., Wang, L., Ye, M., Zhang, Z., Prakapenka, V., Chariton, S., Ginsberg, P. A., ... Jin, C. (2022). Superconductivity above 200 K discovered in superhydrides of calcium. Nature communications, 13(1), Article 2863. https://doi.org/10.1038/s41467-022-30454-w

Li, Z, He, X, Zhang, C, Wang, X, Zhang, S, Jia, Y, Feng, S, Lu, K, Zhao, J, Zhang, J, Min, B, Long, Y, Yu, R, Wang, L, Ye, M, Zhang, Z, Prakapenka, V, Chariton, S, Ginsberg, PA, Bass, J, Yuan, S, Liu, H & Jin, C 2022, 'Superconductivity above 200 K discovered in superhydrides of calcium', Nature communications, vol. 13, no. 1, 2863. https://doi.org/10.1038/s41467-022-30454-w

@article{af8a58ceff954fe299800a7a4d7c9a59,

title = "Superconductivity above 200 K discovered in superhydrides of calcium",

abstract = "Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with maximum critical temperature (Tc) above 210 K in calcium superhydrides, the new alkali earth hydrides experimentally showing superconductivity above 200 K in addition to sulfur hydride & rare-earth hydride system. The materials are synthesized at the synergetic conditions of 160~190 GPa and ~2000 K using diamond anvil cell combined with in-situ laser heating technique. The superconductivity was studied through in-situ high pressure electric conductance measurements in an applied magnetic field for the sample quenched from high temperature while maintained at high pressures. The upper critical field Hc(0) was estimated to be ~268 T while the GL coherent length is ~11 {\AA}. The in-situ synchrotron X-ray diffraction measurements suggest that the synthesized calcium hydrides are primarily composed of CaH6 while there may also exist other calcium hydrides with different hydrogen contents.",

author = "Zhiwen Li and Xin He and Changling Zhang and Xiancheng Wang and Sijia Zhang and Yating Jia and Shaomin Feng and Ke Lu and Jianfa Zhao and Jun Zhang and Baosen Min and Youwen Long and Richeng Yu and Luhong Wang and Meiyan Ye and Zhanshuo Zhang and Vitali Prakapenka and Stella Chariton and Ginsberg, {Paul A.} and Jay Bass and Shuhua Yuan and Haozhe Liu and Changqing Jin",

note = "The work is supported by NSF, MOST, and CAS of China through research projects. Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR–1634415) and Department of Energy-GeoSciences (DE-FG02-94ER14466). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We are grateful to Prof. J.G. Cheng, J.P. Hu, and L. Yu for the discussions. We thank Prof. T. Xiang, B.G. Shen, and Z.X. Zhao for the consistent encouragements. The work is supported by NSF, MOST, and CAS of China through research projects. Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR–1634415) and Department of Energy-GeoSciences (DE-FG02-94ER14466). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We are grateful to Prof. J.G. Cheng, J.P. Hu, and L. Yu for the discussions. We thank Prof. T. Xiang, B.G. Shen, and Z.X. Zhao for the consistent encouragements.",

year = "2022",

month = dec,

doi = "10.1038/s41467-022-30454-w",

language = "English (US)",

volume = "13",

journal = "Nature communications",

issn = "2041-1723",

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number = "1",

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TY - JOUR

T1 - Superconductivity above 200 K discovered in superhydrides of calcium

AU - Li, Zhiwen

AU - He, Xin

AU - Zhang, Changling

AU - Wang, Xiancheng

AU - Zhang, Sijia

AU - Jia, Yating

AU - Feng, Shaomin

AU - Lu, Ke

AU - Zhao, Jianfa

AU - Zhang, Jun

AU - Min, Baosen

AU - Long, Youwen

AU - Yu, Richeng

AU - Wang, Luhong

AU - Ye, Meiyan

AU - Zhang, Zhanshuo

AU - Prakapenka, Vitali

AU - Chariton, Stella

AU - Ginsberg, Paul A.

AU - Bass, Jay

AU - Yuan, Shuhua

AU - Liu, Haozhe

AU - Jin, Changqing

N1 - The work is supported by NSF, MOST, and CAS of China through research projects. Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR–1634415) and Department of Energy-GeoSciences (DE-FG02-94ER14466). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We are grateful to Prof. J.G. Cheng, J.P. Hu, and L. Yu for the discussions. We thank Prof. T. Xiang, B.G. Shen, and Z.X. Zhao for the consistent encouragements. The work is supported by NSF, MOST, and CAS of China through research projects. Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR–1634415) and Department of Energy-GeoSciences (DE-FG02-94ER14466). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We are grateful to Prof. J.G. Cheng, J.P. Hu, and L. Yu for the discussions. We thank Prof. T. Xiang, B.G. Shen, and Z.X. Zhao for the consistent encouragements.

PY - 2022/12

Y1 - 2022/12

N2 - Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with maximum critical temperature (Tc) above 210 K in calcium superhydrides, the new alkali earth hydrides experimentally showing superconductivity above 200 K in addition to sulfur hydride & rare-earth hydride system. The materials are synthesized at the synergetic conditions of 160~190 GPa and ~2000 K using diamond anvil cell combined with in-situ laser heating technique. The superconductivity was studied through in-situ high pressure electric conductance measurements in an applied magnetic field for the sample quenched from high temperature while maintained at high pressures. The upper critical field Hc(0) was estimated to be ~268 T while the GL coherent length is ~11 Å. The in-situ synchrotron X-ray diffraction measurements suggest that the synthesized calcium hydrides are primarily composed of CaH6 while there may also exist other calcium hydrides with different hydrogen contents.

AB - Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with maximum critical temperature (Tc) above 210 K in calcium superhydrides, the new alkali earth hydrides experimentally showing superconductivity above 200 K in addition to sulfur hydride & rare-earth hydride system. The materials are synthesized at the synergetic conditions of 160~190 GPa and ~2000 K using diamond anvil cell combined with in-situ laser heating technique. The superconductivity was studied through in-situ high pressure electric conductance measurements in an applied magnetic field for the sample quenched from high temperature while maintained at high pressures. The upper critical field Hc(0) was estimated to be ~268 T while the GL coherent length is ~11 Å. The in-situ synchrotron X-ray diffraction measurements suggest that the synthesized calcium hydrides are primarily composed of CaH6 while there may also exist other calcium hydrides with different hydrogen contents.

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U2 - 10.1038/s41467-022-30454-w

DO - 10.1038/s41467-022-30454-w

M3 - Article

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AN - SCOPUS:85130474825

SN - 2041-1723

VL - 13

JO - Nature communications

JF - Nature communications

IS - 1

M1 - 2863

ER -

Superconductivity above 200 K discovered in superhydrides of calcium

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