Importance of structural irregularity on dielectric loss in (1-x)Pb(Mg 1/3Nb2/3)O3-(x)PbTiO3 crystals

Shashank Priya; D. Viehland; K. Uchino

doi:10.1063/1.1482791

Importance of structural irregularity on dielectric loss in (1-x)Pb(Mg _1/3Nb_2/3)O₃-(x)PbTiO₃ crystals

Shashank Priya, D. Viehland, K. Uchino

Research output: Contribution to journal › Article › peer-review

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Abstract

The dielectric properties of (1-x)Pb(Mg_1/3Nb_2/3) O₃-(x)PbTiO₃ (PMN-PT) crystals have been investigated over a temperature range of 4 to 450 K at various frequencies. At low temperatures, an unusual frequency dependent plateau region in the absorption was observed between 75 and 175 K. At both higher and lower temperatures, the absorption was frequency independent. Analysis of the relaxation time constant revealed power-law divergence, typical of fractal behavior in disordered magnetic systems. The results demonstrate the importance of structural irregularities on the dielectric loss mechanism in poled oriented PMN-PT crystals.

Original language	English (US)
Pages (from-to)	4217-4219
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	22
DOIs	https://doi.org/10.1063/1.1482791
State	Published - Jun 3 2002
Externally published	Yes

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abstract = "The dielectric properties of (1-x)Pb(Mg1/3Nb2/3) O3-(x)PbTiO3 (PMN-PT) crystals have been investigated over a temperature range of 4 to 450 K at various frequencies. At low temperatures, an unusual frequency dependent plateau region in the absorption was observed between 75 and 175 K. At both higher and lower temperatures, the absorption was frequency independent. Analysis of the relaxation time constant revealed power-law divergence, typical of fractal behavior in disordered magnetic systems. The results demonstrate the importance of structural irregularities on the dielectric loss mechanism in poled oriented PMN-PT crystals.",

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doi = "10.1063/1.1482791",

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T1 - Importance of structural irregularity on dielectric loss in (1-x)Pb(Mg 1/3Nb2/3)O3-(x)PbTiO3 crystals

AU - Priya, Shashank

AU - Viehland, D.

AU - Uchino, K.

PY - 2002/6/3

Y1 - 2002/6/3

N2 - The dielectric properties of (1-x)Pb(Mg1/3Nb2/3) O3-(x)PbTiO3 (PMN-PT) crystals have been investigated over a temperature range of 4 to 450 K at various frequencies. At low temperatures, an unusual frequency dependent plateau region in the absorption was observed between 75 and 175 K. At both higher and lower temperatures, the absorption was frequency independent. Analysis of the relaxation time constant revealed power-law divergence, typical of fractal behavior in disordered magnetic systems. The results demonstrate the importance of structural irregularities on the dielectric loss mechanism in poled oriented PMN-PT crystals.

AB - The dielectric properties of (1-x)Pb(Mg1/3Nb2/3) O3-(x)PbTiO3 (PMN-PT) crystals have been investigated over a temperature range of 4 to 450 K at various frequencies. At low temperatures, an unusual frequency dependent plateau region in the absorption was observed between 75 and 175 K. At both higher and lower temperatures, the absorption was frequency independent. Analysis of the relaxation time constant revealed power-law divergence, typical of fractal behavior in disordered magnetic systems. The results demonstrate the importance of structural irregularities on the dielectric loss mechanism in poled oriented PMN-PT crystals.

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Importance of structural irregularity on dielectric loss in (1-x)Pb(Mg _1/3Nb_2/3)O₃-(x)PbTiO₃ crystals

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