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Interface-induced electronic structure toughening of nitride superlattices

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00480218" target="_blank" >RIV/68081723:_____/17:00480218 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26620/17:PU124228

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.surfcoat.2017.06.065" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2017.06.065</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.surfcoat.2017.06.065" target="_blank" >10.1016/j.surfcoat.2017.06.065</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Interface-induced electronic structure toughening of nitride superlattices

  • Original language description

    We report on first-principles study of uniaxial strength for brittle cleavage of AIN/VN, AIN/TiN and VN/TiN systems. In agreement with previous studies we predict that the VN/TiN exhibits interface induced toughening of VN as compared to bulk values, and a similar effect is predicted also to occur in the VN/AlN system. However, a more detailed insight reveals, that the theoretical critical stress for brittle cleavage largely oscillates (even below the critical stress for bulk) with the distance from the interface inside the VN layer, a phenomenon not present (or hugely reduced) in TiN and AlN layers. The oscillating values for critical stress well correlate with the same behavior of interplanar distances and charge density. The origin of these unexpected properties was pinpointed to structural instabilities of cubic VN.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Surface and Coatings Technology

  • ISSN

    0257-8972

  • e-ISSN

  • Volume of the periodical

    325

  • Issue of the periodical within the volume

    SEP

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    7

  • Pages from-to

    410-416

  • UT code for WoS article

    000411296900048

  • EID of the result in the Scopus database

    2-s2.0-85021745317