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Superconducting sta...
Superconducting state of the van der Waals layered PdH2 structure at high pressure
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- Tsuppayakorn-aek, Prutthipong (author)
- Chulalongkorn Univ, Fac Sci, Dept Phys, Extreme Condit Phys Res Lab, Bangkok 10330, Thailand.;Chulalongkorn Univ, Fac Sci, Dept Phys, Ctr Excellence Phys Energy Mat CE PEM, Bangkok 10330, Thailand.;Minist Higher Educ Sci Res & Innovat, Thailand Ctr Excellence Phys, 328 Si Ayutthaya Rd, Bangkok 10400, Thailand.
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- Majumdar, Arnab (author)
- Uppsala universitet,Materialteori
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- Ahuja, Rajeev, 1965- (author)
- Uppsala universitet,Materialteori,Teoretisk fysik,Indian Inst Technol Ropar, Dept Phys, Rupnagar 140001, Punjab, India.
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- Bovornratanaraks, Thiti (author)
- Chulalongkorn Univ, Fac Sci, Dept Phys, Extreme Condit Phys Res Lab, Bangkok 10330, Thailand.;Chulalongkorn Univ, Fac Sci, Dept Phys, Ctr Excellence Phys Energy Mat CE PEM, Bangkok 10330, Thailand.;Minist Higher Educ Sci Res & Innovat, Thailand Ctr Excellence Phys, 328 Si Ayutthaya Rd, Bangkok 10400, Thailand.
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- Luo, Wei (author)
- Uppsala universitet,Materialteori
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Chulalongkorn Univ, Fac Sci, Dept Phys, Extreme Condit Phys Res Lab, Bangkok 10330, Thailand;Chulalongkorn Univ, Fac Sci, Dept Phys, Ctr Excellence Phys Energy Mat CE PEM, Bangkok 10330, Thailand.;Minist Higher Educ Sci Res & Innovat, Thailand Ctr Excellence Phys, 328 Si Ayutthaya Rd, Bangkok 10400, Thailand. Materialteori (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: International journal of hydrogen energy. - : Elsevier BV. - 0360-3199 .- 1879-3487. ; 48:44, s. 16769-16778
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Abstract
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- We report structural and superconducting transitions in layered van der Waals (vdW) palladium dihydride (PdH2) calculated under high-pressure compression. PdH2 has a Hexagonal Closed-Packed (HCP) structure with a space group of P63mc, and has a super-conducting transition temperature of 24 K at ambient pressure. At 15 GPa, the crystalline to vdW layered structural transition occurs, while the superconductivity remains. On com-pressing from 15 to 50 GPa, the Tc increased abnormally by 3.5 K. It is found that the superconducting critical temperature of P63mc PdH2 is determined by the out-of-plane interlayer breathing vibrational mode. As a vdW layered metal hydride superconductor, PdH2 provides a platform to study hydride superconductivity in such kinds of materials. (c) 2023 The Authors. Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC. This is an open access article under the CC BY license (http://creativecommons.org/ licenses/by/4.0/).
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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