High-pressure synthesis of dysprosium carbides

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Funding Agencies|Federal Ministry of Education and Research, Germany (BMBF) [05K19WC1]; Deutsche Forschungsgemeinschaft (DFG) [DU 954-11/1, DU 393-9/2, DU 393-13/1]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; UKRI Future Leaders Fellowship [MR/V025724/1]
Chemical reactions between dysprosium and carbon were studied in laser-heated diamond anvil cells at pressures of 19, 55, and 58 GPa and temperatures of similar to 2500 K. In situ single-crystal synchrotron X-ray diffraction analysis of the reaction products revealed the formation of novel dysprosium carbides, Dy4C3 and Dy3C2, and dysprosium sesquicarbide Dy2C3 previously known only at ambient conditions. The structure of Dy4C3 was found to be closely related to that of dysprosium sesquicarbide Dy2C3 with the Pu2C3-type structure. Ab initio calculations reproduce well crystal structures of all synthesized phases and predict their compressional behavior in agreement with our experimental data. Our work gives evidence that high-pressure synthesis conditions enrich the chemistry of rare earth metal carbides.

NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
high-pressure; diamond anvil cell; rare-earth carbides; carbides; rare-earth elements; lanthanides carbides; dysprosium carbide

Aslandukova, AlenaUniv Bayreuth, Germany (författare)
Aslandukov, AndreyUniv Bayreuth, Germany; Univ Bayreuth, Germany (författare)
Yin, YuqingUniv Bayreuth, Germany; Shandong Univ, Peoples R China (författare)
Trybel, FlorianLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten(Swepub:liu)flotr82 (författare)
Khandarkhaeva, SaianaUniv Bayreuth, Germany (författare)
Fedotenko, TimofeyDeutsch Elektronen Synchrotron DESY, Germany (författare)
Laniel, DominiqueUniv Edinburgh, Scotland; Univ Edinburgh, Scotland (författare)
Bykov, MaximUniv Cologne, Germany (författare)
Bykova, ElenaUniv Bayreuth, Germany (författare)
Doubrovinckaia, NataliaLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Univ Bayreuth, Germany(Swepub:liu)natdo06 (författare)
Dubrovinsky, LeonidUniv Bayreuth, Germany (författare)
Univ Bayreuth, Germany; Univ Bayreuth, GermanyUniv Bayreuth, Germany (creator_code:org_t)

Av författaren/redakt...: Akbar, Fariia Ia ...; Aslandukova, Ale ...; Aslandukov, Andr ...; Yin, Yuqing; Trybel, Florian; Khandarkhaeva, S ...; visa fler...; Fedotenko, Timof ...; Laniel, Dominiqu ...; Bykov, Maxim; Bykova, Elena; Doubrovinckaia, ...; Dubrovinsky, Leo ...; visa färre...

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