The influence of external electric field on the anomalies of the dielectric properties of CuInP2S6 and Ag0,05Cu0,95P2S6 crystals in the vicinity of the phase transition temperature

The effects of Mn doping on the phase composition and dielectric properties of (1-x)BaO·xSrO·0.7TiO2·0.3Nb2O5 (BSTN) composite ceramics was investigated. The results showed that the dielectric constants of 0.7BaO·0.3SrO·(0.7-z)TiO2·0.3Nb2O5·zMnO2 (BSTNM) composite ceramics basically decreases as the content of doped MnO2 increases at the same applied frequency, while tanδ decreases when value z≤0.01 but increases when value z>0.01. The phase transition temperature of tungsten bronze phase in BSTNM composite ceramics increases with the increase of value z.

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Phase transition, optical and dielectric properties regulated by anion-substitution in a homologous series of 2D hybrid organic–inorganic perovskites

Journal of Materials Chemistry C ◽

10.1039/c9tc04479e ◽

2019 ◽

Vol 7 (38) ◽

pp. 11964-11971 ◽

Cited By ~ 9

Author(s):

Wen-Juan Wei ◽

Chao Li ◽

Lin-Sui Li ◽

Yun-Zhi Tang ◽

Xing-Xing Jiang ◽

...

Keyword(s):

Phase Transition ◽

Transition Temperature ◽

Dielectric Properties ◽

Band Gap ◽

Phase Transition Temperature ◽

Homologous Series ◽

Halogen Atoms ◽

Anion Substitution

Three homologous 2D organic–inorganic perovskites exhibit regulative magnitudes of phase transition temperature up to 185 K and band gap up to 1.79 eV as halogen atoms vary from Cl, Br to I.

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Dielectric properties of triglycine selenate ferroelectric near the phase-transition temperature

Physical Review B ◽

10.1103/physrevb.57.777 ◽

1998 ◽

Vol 57 (2) ◽

pp. 777-782 ◽

Cited By ~ 15

Author(s):

B. Fugiel ◽

M. Mierzwa

Keyword(s):

Phase Transition ◽

Transition Temperature ◽

Dielectric Properties ◽

Phase Transition Temperature ◽

Triglycine Selenate

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Phase transition and dielectric properties of BaTiO3 ceramics containing 10 mol% BaGeO3

10.31219/osf.io/3d7gw ◽

2018 ◽

Author(s):

Roberto Köferstein

Keyword(s):

Phase Transition ◽

Transition Temperature ◽

Dielectric Properties ◽

Phase Transition Temperature ◽

Ferroelectric Phase ◽

Grain Sizes ◽

Ferroelectric Phase Transition Temperature ◽

Permittivity Maximum ◽

Tetragonal Phase Transition ◽

Maximum Permittivity

Dielectric properties and the cubic ? tetragonal phase transition temperature ofdense BaTiO3 ceramics containing 10 mol% BaGeO3, sintered between 840 and 1350 °C,have been investigated. The ceramic bodies were prepared from a nano-sized BaTi0.9/Ge0.1O3powder consisting of both BaTiO3 and BaGeO3 phases. The addition of BaGeO3 leads to areduction and broadening of the permittivity maximum, and to a small downshift of theparaelectric ? ferroelectric phase transition temperature, compared to a pure BaTiO3 ceramic.Lower sintering temperatures and thus small grain sizes of the ceramics cause an additionalreduction of the maximum permittivity down to 2800. Both DTA and dilatometricmeasurements reveal also a downshifting of the phase transition temperature, as well as adecrease of the latent heat.

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