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Diverse high-pressu...
Diverse high-pressure chemistry in Y-NH3BH3 and Y–paraffin oil systems
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- Aslandukova, Alena (author)
- Univ Bayreuth, Germany
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- Aslandukov, Andrey (author)
- Univ Bayreuth, Germany
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- Laniel, Dominique (author)
- Univ Edinburgh, Scotland
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- Yin, Yuqing (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Univ Bayreuth, Germany; Shandong Univ, Peoples R China
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- Akbar, Fariia Iasmin (author)
- Univ Bayreuth, Germany
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- Bykov, Maxim (author)
- Univ Cologne, Germany
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- Fedotenko, Timofey (author)
- Deutsch Elektronen Synchrotron DESY, Germany
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- Glazyrin, Konstantin (author)
- Deutsch Elektronen Synchrotron DESY, Germany
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- Pakhomova, Anna (author)
- European Synchrotron Radiat Facil, France
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- Garbarino, Gaston (author)
- European Synchrotron Radiat Facil, France
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- Bright, Eleanor Lawrence (author)
- European Synchrotron Radiat Facil, France
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- Wright, Jonathan (author)
- European Synchrotron Radiat Facil, France
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- Hanfland, Michael (author)
- European Synchrotron Radiat Facil, France
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- Chariton, Stella (author)
- Univ Chicago, IL 60637 USA
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- Prakapenka, Vitali (author)
- Univ Chicago, IL 60637 USA
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- Doubrovinckaia, Natalia (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Univ Bayreuth, Germany
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- Dubrovinsky, Leonid (author)
- Univ Bayreuth, Germany
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(creator_code:org_t)
- AMER ASSOC ADVANCEMENT SCIENCE, 2024
- 2024
- English.
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In: Science Advances. - : AMER ASSOC ADVANCEMENT SCIENCE. - 2375-2548. ; 10:11
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The yttrium-hydrogen system has gained attention because of near-ambient temperature superconductivity reports in yttrium hydrides at high pressures. We conducted a study using synchrotron single-crystal x-ray diffraction (SCXRD) at 87 to 171 GPa, resulting in the discovery of known (two YH3 phases) and five previously unknown yttrium hydrides. These were synthesized in diamond anvil cells by laser heating yttrium with hydrogen-rich precursors-ammonia borane or paraffin oil. The arrangements of yttrium atoms in the crystal structures of new phases were determined on the basis of SCXRD, and the hydrogen content estimations based on empirical relations and ab initio calculations revealed the following compounds: Y3H11, Y2H9, Y4H23, Y13H75, and Y4H25. The study also uncovered a carbide (YC2) and two yttrium allotropes. Complex phase diversity, variable hydrogen content in yttrium hydrides, and their metallic nature, as revealed by ab initio calculations, underline the challenges in identifying superconducting phases and understanding electronic transitions in high-pressure synthesized materials.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- ref (subject category)
- art (subject category)
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- By the author/editor
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Aslandukova, Ale ...
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Aslandukov, Andr ...
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Laniel, Dominiqu ...
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Yin, Yuqing
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Akbar, Fariia Ia ...
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Bykov, Maxim
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Fedotenko, Timof ...
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Glazyrin, Konsta ...
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Pakhomova, Anna
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Garbarino, Gasto ...
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Bright, Eleanor ...
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Wright, Jonathan
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Hanfland, Michae ...
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Chariton, Stella
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Prakapenka, Vita ...
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Doubrovinckaia, ...
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Dubrovinsky, Leo ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Linköping University