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Lattice dynamics and broad-band dielectric properties of multiferroic Pb(Fe1/2Nb1/2)O3 ceramics

Result description

Complex dielectric properties of Pb(Fe1/2Nb1/2)O3 ceramics were investigated in a broad frequency range from 100 Hz up to 90 THz. A dielectric relaxation, which appears in THz region below 700 K, slows down towards Tc1 and again hardens below Tc2=356 K.This central mode drives both phase transitions, so they belong to order-disorder type, although the polar phonons exhibit anomalies near both phase transitions.

Keywords

relaxor ferroelectricsphononssoft mode

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Lattice dynamics and broad-band dielectric properties of multiferroic Pb(Fe1/2Nb1/2)O3 ceramics

  • Original language description

    Complex dielectric properties of Pb(Fe1/2Nb1/2)O3 ceramics were investigated in a broad frequency range from 100 Hz up to 90 THz. A dielectric relaxation, which appears in THz region below 700 K, slows down towards Tc1 and again hardens below Tc2=356 K.This central mode drives both phase transitions, so they belong to order-disorder type, although the polar phonons exhibit anomalies near both phase transitions.

  • Czech name

  • Czech description

Classification

  • Type

    Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

Result continuities

Others

  • Publication year

    2015

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Applied Physics

  • ISSN

    0021-8979

  • e-ISSN

  • Volume of the periodical

    117

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    6

  • Pages from-to

    "084101-1"-"084101-6"

  • UT code for WoS article

    000351132500028

  • EID of the result in the Scopus database

    2-s2.0-84923452108

Basic information

Result type

Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

Jx

CEP

BM - Solid-state physics and magnetism

Year of implementation

2015