Superconductivity in SrB_{3}C_{3} clathrate
We predict superconductivity for the carbon–boron clathrate SrB_{3}C_{3} with T_{c}=27–43K for Coulomb pseudopotential (μ^{*}) values between 0.17 and 0.10 using first-principles calculations with conventional electron–phonon coupling. Electrical transport measurements, facilitated by an in situ exp...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.013012 |
| _version_ | 1797210615269294080 |
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| author | Li Zhu Hanyu Liu Maddury Somayazulu Yue Meng Piotr A. Guńka Thomas B. Shiell Curtis Kenney-Benson Stella Chariton Vitali B. Prakapenka Hyeok Yoon Jarryd A. Horn Johnpierre Paglione Roald Hoffmann R. E. Cohen Timothy A. Strobel |
| author_facet | Li Zhu Hanyu Liu Maddury Somayazulu Yue Meng Piotr A. Guńka Thomas B. Shiell Curtis Kenney-Benson Stella Chariton Vitali B. Prakapenka Hyeok Yoon Jarryd A. Horn Johnpierre Paglione Roald Hoffmann R. E. Cohen Timothy A. Strobel |
| author_sort | Li Zhu |
| collection | DOAJ |
| description | We predict superconductivity for the carbon–boron clathrate SrB_{3}C_{3} with T_{c}=27–43K for Coulomb pseudopotential (μ^{*}) values between 0.17 and 0.10 using first-principles calculations with conventional electron–phonon coupling. Electrical transport measurements, facilitated by an in situ experimental design compatible with extreme synthesis conditions (>3000K at 50 GPa), show nonhysteretic resistivity drops that track the calculated magnitude and pressure dependence of superconductivity for μ^{*}≈0.15, and transport measurements collected under applied magnetic fields indicate superconductivity with an onset T_{c} of approximately 20 K at 40 GPa. Carbon-based clathrates thus represent a class of superconductors similar to other covalent metals like MgB_{2} and doped fullerenes. Carbon clathrates share structures similar to superconducting superhydrides with wide potential for tunable properties, and covalent C–B bonds allow metastable persistence at ambient conditions. |
| first_indexed | 2024-04-24T10:13:24Z |
| format | Article |
| id | doaj.art-ed44347bec2d43ab9039d0533fbf45a9 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:13:24Z |
| publishDate | 2023-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-ed44347bec2d43ab9039d0533fbf45a92024-04-12T17:27:32ZengAmerican Physical SocietyPhysical Review Research2643-15642023-01-015101301210.1103/PhysRevResearch.5.013012Superconductivity in SrB_{3}C_{3} clathrateLi ZhuHanyu LiuMaddury SomayazuluYue MengPiotr A. GuńkaThomas B. ShiellCurtis Kenney-BensonStella CharitonVitali B. PrakapenkaHyeok YoonJarryd A. HornJohnpierre PaglioneRoald HoffmannR. E. CohenTimothy A. StrobelWe predict superconductivity for the carbon–boron clathrate SrB_{3}C_{3} with T_{c}=27–43K for Coulomb pseudopotential (μ^{*}) values between 0.17 and 0.10 using first-principles calculations with conventional electron–phonon coupling. Electrical transport measurements, facilitated by an in situ experimental design compatible with extreme synthesis conditions (>3000K at 50 GPa), show nonhysteretic resistivity drops that track the calculated magnitude and pressure dependence of superconductivity for μ^{*}≈0.15, and transport measurements collected under applied magnetic fields indicate superconductivity with an onset T_{c} of approximately 20 K at 40 GPa. Carbon-based clathrates thus represent a class of superconductors similar to other covalent metals like MgB_{2} and doped fullerenes. Carbon clathrates share structures similar to superconducting superhydrides with wide potential for tunable properties, and covalent C–B bonds allow metastable persistence at ambient conditions.http://doi.org/10.1103/PhysRevResearch.5.013012 |
| spellingShingle | Li Zhu Hanyu Liu Maddury Somayazulu Yue Meng Piotr A. Guńka Thomas B. Shiell Curtis Kenney-Benson Stella Chariton Vitali B. Prakapenka Hyeok Yoon Jarryd A. Horn Johnpierre Paglione Roald Hoffmann R. E. Cohen Timothy A. Strobel Superconductivity in SrB_{3}C_{3} clathrate Physical Review Research |
| title | Superconductivity in SrB_{3}C_{3} clathrate |
| title_full | Superconductivity in SrB_{3}C_{3} clathrate |
| title_fullStr | Superconductivity in SrB_{3}C_{3} clathrate |
| title_full_unstemmed | Superconductivity in SrB_{3}C_{3} clathrate |
| title_short | Superconductivity in SrB_{3}C_{3} clathrate |
| title_sort | superconductivity in srb 3 c 3 clathrate |
| url | http://doi.org/10.1103/PhysRevResearch.5.013012 |
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