Ghosh, Barnali ; Bhattacharya, Dipten ; Raychaudhuri, A. K. ; Arumugam, S. (2009) Frequency dependence of dielectric anomaly around Néel temperature in bilayer manganite Pr(Sr0.1Ca0.9)2Mn2O7 Journal of Applied Physics, 105 (12). 123914_1-123914_4. ISSN 0021-8979
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Official URL: http://jap.aip.org/resource/1/japiau/v105/i12/p123...
Related URL: http://dx.doi.org/10.1063/1.3153124
Abstract
The anomaly in dielectric constant versus temperature plot, around the Néel temperature TN (∼150 K), is found to be frequency dependent in a single crystal of bilayer manganite Pr(Sr0.1Ca0.9)2Mn2O7. The anomaly in the permittivity (ε'||c) occurs at a temperature Tf which moves within a temperature window (ΔTf) of ∼40 K around TN for a frequency range of 50 kHz-5 MHz. The capacitive component Cp of the dielectric response exhibits a clear yet broad feature around TN which establishes the intrinsic capacitive nature of the anomaly.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Calcium Compounds; Ferroelectric Materials; Ferroelectric Thin Films; Ferromagnetic Materials; Magnetic Thin Films; Multiferroics; Neel Temperature; Permittivity; Praseodymium Compounds; Strontium Compounds |
| ID Code: | 42679 |
| Deposited On: | 06 Jun 2011 04:48 |
| Last Modified: | 06 Jun 2011 04:48 |
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