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Pyroelectric and dielectric properties of some heavy rare-earth orthochromites

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Abstract

The measurement of pyroelectric coefficient (p) and dielectric constant (K) of rare-earth orthochromites RCrO3, where R = Tb, Dy, Ho, Er and Yb are reported for the temperature range 300–600 K. Pyroelectric data show that all the studied orthochromites have ferroelectric phase in this temperature range. The dielectric data in some cases support this conclusion. Spontaneous polarization (P s) and Curie temperature (T c) have also been evaluated. The maximum value of P s varies from 0.041 Cm−2 to 0.30 Cm−2 in the studied orthochromites, which is very small.

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Authors and Affiliations

  1. Department of Physics, University of Gorakhpur, 273009, Gorakhpur, India

    H. B. Lal, R. D. Dwivedi & Kanchan Gaur

Authors
  1. H. B. Lal
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  2. R. D. Dwivedi
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  3. Kanchan Gaur
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Lal, H.B., Dwivedi, R.D. & Gaur, K. Pyroelectric and dielectric properties of some heavy rare-earth orthochromites. J Mater Sci: Mater Electron 7, 35–38 (1996). https://doi.org/10.1007/BF00194090

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  • DOI: https://doi.org/10.1007/BF00194090

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