WFRF:(Bykov Maxim)
Sökning: WFRF:(Bykov Maxim) > High-Pressure Synth...
- 22 av 26
- Föregående post
- Nästa post
- Till träfflistan
High-Pressure Synthesis of Ultra-Incompressible, Hard and Superconducting Tungsten Nitrides
-
- Liang, Akun (författare)
- Univ Edinburgh, Scotland; Univ Edinburgh, Scotland
-
- Osmond, Israel (författare)
- Univ Edinburgh, Scotland; Univ Edinburgh, Scotland
-
- Krach, Georg (författare)
- Univ Munich LMU, Germany
- visa fler...
- visa färre...
- (creator_code:org_t)
- 2024
- 2024
- Engelska.
- Ingår i: Advanced Functional Materials. - : WILEY-V C H VERLAG GMBH. - 1616-301X .- 1616-3028.
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Transition metal nitrides, particularly those of 5d metals, are known for their outstanding properties, often relevant for industrial applications. Among these metal elements, tungsten is especially attractive given its low cost. In this high-pressure investigation of the W-N system, two novel ultra-incompressible tungsten nitride superconductors, namely W2N3 and W3N5, are successfully synthesized at 35 and 56 GPa, respectively, through a direct reaction between N2 and W in laser-heated diamond anvil cells. Their crystal structure is determined using synchrotron single-crystal X-ray diffraction. While the W2N3 solid's sole constituting nitrogen species are N3- units, W3N5 features both discrete N3- as well as N24- pernitride anions. The bulk modulus of W2N3 and W3N5 is experimentally determined to be 380(3) and 406(7) GPa, and their ultra-incompressible behavior is rationalized by their constituting WN7 polyhedra and their linkages. Importantly, both W2N3 and W3N5 are recoverable to ambient conditions and stable in air. Density functional theory calculations reveal W2N3 and W3N5 to have a Vickers hardness of 30 and 34 GPa, and superconducting transition temperatures at ambient pressure (50 GPa) of 11.6 K (9.8 K) and 9.4 K (7.2 K), respectively. Additionally, transport measurements performed at 50 GPa on W2N3 corroborate with the calculations. Two recoverable tungsten nitrides, namely W2N3 and W3N5, are synthesized using laser-heated diamond anvil cells. Both compounds exhibit a high bulk modulus, hardness, and superconducting transition temperature. image
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Nyckelord
- high hardness; high-pressure synthesis; single-crystal X-ray diffraction; tungsten nitrides; ultra-incompressible
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
- Advanced Functional Materials (Sök värdpublikationen i LIBRIS)
Till lärosätets databas
- 22 av 26
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- Liang, Akun
- Osmond, Israel
- Krach, Georg
- Shi, Lan-Ting
- Bruening, Lukas
- Ranieri, Umberto ...
- visa fler...
- Spender, James
- Tasnadi, Ferenc
- Massani, Bernhar ...
- Stevens, Callum ...
- McWilliams, Ryan ...
- Bright, Eleanor ...
- Giordano, Nico
- Gallego-Parra, S ...
- Yin, Yuqing
- Aslandukov, Andr ...
- Akbar, Fariia Ia ...
- Gregoryanz, Euge ...
- Huxley, Andrew
- Pena-Alvarez, Mi ...
- Si, Jian-Guo
- Schnick, Wolfgan ...
- Bykov, Maxim
- Trybel, Florian
- Laniel, Dominiqu ...
- visa färre...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Kemi
- och Oorganisk kemi
- Artiklar i publikationen
- Advanced Functio ...
- Av lärosätet
- Linköpings universitet
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
