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Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F08%3A00320797" target="_blank" >RIV/68378271:_____/08:00320797 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics

  • Original language description

    We investigated the grain size effect on the high temperature behaviour of PMN-35PT ceramics around the tetragonal?cubic phase transition using second harmonic generation (SHG) and dielectric spectroscopy. Our data revealed coexistence of the first-orderferroelectric phase transition and relaxor behaviour in the coarse grain (grain size 4 ?m) ?_PMN-35PT. The phase transition is hindered and relaxor features prevail in the fine grain (grain size 150 nm) n_PMN-35PT ceramics. Effect of the grain-size reduction on the SHG and dielectric response could be attributed to stabilisation of intermediate domain configurations between the frozen polar nanoclusters and large ferroelectric domains and to the enhanced stability of polar nanoclusters in the fine grain ceramics.

  • Czech name

    Studium jemno- a hrubozrnné keramiky PMN-35PT pomocí SHG a dielektrických měřen

  • Czech description

    Byl studován efekt velikosti zrn na vysokoteplotní chování PMN-35PT keramiky v okolí fázového přechodu z tetragonální do kubické fáze pomocí generace druhé harmonické (SHG) a dielektrické spektroskopie. Měření potvrdila koexistenci feroelektrického a relaxorového chování v keramice s hrubým zrnem (rozměru 4 ?m), zatímco u jemnozrnné keramiky (zrna 150 nm) převažuje relaxorové chování a fázový přechod probíha spojitě, v souvislosti se zvýšenou stabilizace polárních nanoklastrů v jemnozrnné keramice.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

Result continuities

  • Project

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

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Phase Transitions

  • ISSN

    0141-1594

  • e-ISSN

  • Volume of the periodical

    81

  • Issue of the periodical within the volume

    11-12

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    6

  • Pages from-to

  • UT code for WoS article

    000261661300012

  • EID of the result in the Scopus database