Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Electric properties of NH4Sn2F5 polycrystals in the frequency range from 20 to 3.2 · 1010 Hz. / Murin, I.; Peceliunaite, A.; Kezionis, A.; Mizaras, R.; Orliukas, A.
в: Solid State Ionics, Том 86-88, № PART 1, 07.1996, стр. 247-250.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Electric properties of NH4Sn2F5 polycrystals in the frequency range from 20 to 3.2 · 1010 Hz
AU - Murin, I.
AU - Peceliunaite, A.
AU - Kezionis, A.
AU - Mizaras, R.
AU - Orliukas, A.
PY - 1996/7
Y1 - 1996/7
N2 - The ionic conductivity (σac) and the real part of complex dielectric permittivity (ε′) of F conductor NH4Sn2F5 have been investigated between 300 and 380 K in the frequency range from 20 to 3.2 · 1010 Hz. The crystals NH4Sn2F5 at the temperatures T1 = 343 K and T2 = 357 K undergo two superionic phase transitions, accompanied by the anomalies of σac and ε′. At room temperature and electric field frequency ν = 103 Hz, σac = 5 · 10-2 S/m and its activation energy ΔE1 = 0.47 eV; at temperature T ≥ 357, K σac(T) changes with activation energy ΔE2 = 0.34 eV. In the temperature range 343 ≤ T ≤ 357 K, σac(T) dependence does not obey Arrhenius law. In this frequency region two relaxation dispersions of σac and ε′ attributed to the ion transport in the grain and grain boundaries of our polycrystals have been found.
AB - The ionic conductivity (σac) and the real part of complex dielectric permittivity (ε′) of F conductor NH4Sn2F5 have been investigated between 300 and 380 K in the frequency range from 20 to 3.2 · 1010 Hz. The crystals NH4Sn2F5 at the temperatures T1 = 343 K and T2 = 357 K undergo two superionic phase transitions, accompanied by the anomalies of σac and ε′. At room temperature and electric field frequency ν = 103 Hz, σac = 5 · 10-2 S/m and its activation energy ΔE1 = 0.47 eV; at temperature T ≥ 357, K σac(T) changes with activation energy ΔE2 = 0.34 eV. In the temperature range 343 ≤ T ≤ 357 K, σac(T) dependence does not obey Arrhenius law. In this frequency region two relaxation dispersions of σac and ε′ attributed to the ion transport in the grain and grain boundaries of our polycrystals have been found.
KW - Dielectric permittivity
KW - Electrical properties
KW - Fluorites
KW - Ionic conductivity
UR - http://www.scopus.com/inward/record.url?scp=0030182548&partnerID=8YFLogxK
U2 - 10.1016/0167-2738(96)00135-X
DO - 10.1016/0167-2738(96)00135-X
M3 - Article
AN - SCOPUS:0030182548
VL - 86-88
SP - 247
EP - 250
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - PART 1
ER -
ID: 88061234