Počet záznamů: 1  

Synthesis, structure, thermal, transport and magnetic properties of VN ceramics

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    0470913 - FZÚ 2017 RIV GB eng J - Článek v odborném periodiku
    Huber, Š. - Jankovský, O. - Sedmidubský, D. - Luxa, J. - Klimová, K. - Hejtmánek, Jiří - Sofer, Z.
    Synthesis, structure, thermal, transport and magnetic properties of VN ceramics.
    Ceramics International. Roč. 42, č. 16 (2016), s. 18779-18784. ISSN 0272-8842. E-ISSN 1873-3956
    Grant CEP: GA ČR GA13-20507S
    Institucionální podpora: RVO:68378271
    Klíčová slova: vanadium mononitride * phase transition * electronic structure * heat capacity * transport properties
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.986, rok: 2016

    We present a detailed study investigating structure, thermal, transport and magnetic properties of vanadium mononitride. Pure vanadium mononitride ceramics with a stoichiometry very close to ideal composition VN was synthesized by ammonolysis of ammonium vanadate followed by sintering in NH3/N2 atmosphere. The detailed chemical and thermochemical analysis as well as transport properties measurement reveal stoichiometric composition of VN. The low temperature electrical and thermal transport measurements show superconducting transition at 8 K, a gradual structural phase transition below 250 K and a high temperature phase decomposition accompanied by V2N formation. The electronic structure calculations are correlated with the analysis of transport and thermal properties revealing an essential role of electron-phonon coupling and strong anharmonic effects.
    Trvalý link: http://hdl.handle.net/11104/0268423

     
     
Počet záznamů: 1  

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