Broadband dielectric investigations of indium rich CuInP2S6 layered crystals
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Andrius Dziaugys
Abstract
Results on dielectric properties of layered indium rich CuIn1+δP2S6 crystals are presented. At low frequencies and high temperatures, the dielectric spectra are strongly influenced by the high ionic conductivity with the activation energy corresponding to 6815 K (0.587 eV). The high-frequency part of the dielectric spectra is determined by the relaxational soft mode. The critical slowing down and Debye-type dispersion show an order–disorder type of the ferrielectric phase transition at 330 K, which is substantially higher than for pure CuInP2S6. The high ferrielectric phase transition temperature suggests an idea that a frustrated ordering should appears in indium sublattice at low temperatures. Indeed, at low temperatures the complex dielectric permittivity exhibits behaviour typical for dipolar glasses.
© by Oldenbourg Wissenschaftsverlag, Vilnius, Germany
Artikel in diesem Heft
- Preface: Advanced Ferroelectrics: Structure and Properties
- Compositional disorder, polar nanoregions and dipole dynamics in Pb(Mg1/3Nb2/3)O3-based relaxor ferroelectrics
- Spontaneous and induced surface piezoresponse in PbMg1/3Nb2/3O3 single crystals
- Diffuse scattering and local structure modeling in ferroelectrics
- Transformation processes in relaxor ferroelectric PbSc0.5Ta0.5O3 heavily doped with Nb and Sn
- Temperature-dependent synchrotron powder diffraction phase studies of (K0.37Na0.52Li0.03)(Nb0.87Ta0.1Sb0.03)O3 ferroelectric ceramics
- Polar states of the impurity system KTaO3:Li
- Neutron total scattering studies on A-site disorder in lead-free ferroelectric Bi0.5(Na1–xKx)0.5TiO3
- In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate
- A brief review on the model antiferroelectric PbZrO3 perovskite-like material
- Broadband dielectric investigations of indium rich CuInP2S6 layered crystals
- Ferroelectricity and superconductivity: competing or cooperating phenomena
- A new computer tool at the Bilbao Crystallographic Server to detect and characterize pseudosymmetry
Artikel in diesem Heft
- Preface: Advanced Ferroelectrics: Structure and Properties
- Compositional disorder, polar nanoregions and dipole dynamics in Pb(Mg1/3Nb2/3)O3-based relaxor ferroelectrics
- Spontaneous and induced surface piezoresponse in PbMg1/3Nb2/3O3 single crystals
- Diffuse scattering and local structure modeling in ferroelectrics
- Transformation processes in relaxor ferroelectric PbSc0.5Ta0.5O3 heavily doped with Nb and Sn
- Temperature-dependent synchrotron powder diffraction phase studies of (K0.37Na0.52Li0.03)(Nb0.87Ta0.1Sb0.03)O3 ferroelectric ceramics
- Polar states of the impurity system KTaO3:Li
- Neutron total scattering studies on A-site disorder in lead-free ferroelectric Bi0.5(Na1–xKx)0.5TiO3
- In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate
- A brief review on the model antiferroelectric PbZrO3 perovskite-like material
- Broadband dielectric investigations of indium rich CuInP2S6 layered crystals
- Ferroelectricity and superconductivity: competing or cooperating phenomena
- A new computer tool at the Bilbao Crystallographic Server to detect and characterize pseudosymmetry
