High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore.
Single phase non-stoichiometric bismuth zinc niobate, Bi3Zn1.84Nb3O13.84, was fabricated by a conventional solid state method. The sample was refined and fully indexed on the cubic system, space group Fd3m (No. 227), Z = 4 with a = 10.5579(4) �. Electrical characterisation was performed using an a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
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Springer Publishing Company
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15008/1/High%20temperature%20impedance%20spectroscopy%20study%20of%20non.pdf |
| _version_ | 1825945537911717888 |
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| author | Tan, Kar Ban Khaw, C. C. Lee, C. K. Zainal, Z. Tan, Y. P. Shaari, Hasnizam |
| author_facet | Tan, Kar Ban Khaw, C. C. Lee, C. K. Zainal, Z. Tan, Y. P. Shaari, Hasnizam |
| author_sort | Tan, Kar Ban |
| collection | UPM |
| description | Single phase non-stoichiometric bismuth zinc niobate, Bi3Zn1.84Nb3O13.84, was fabricated by a conventional solid state method. The sample was refined and fully indexed on the cubic system, space group Fd3m (No. 227), Z = 4 with a = 10.5579(4) �. Electrical characterisation was performed using an ac impedance analyser over the temperature range of 25-850 �C and frequency range of 5 Hz-13 MHz. Typical dielectric response is observed in Bi3 Zn1.84Nb3O13.84 with a high relative permittivity, low dielectric loss and a negative temperature coefficient of capacitance, with the values of 147, 0.002 and -396 ppm/�C, at 100 kHz at ambient temperature, respectively. This material is highly resistive, with a conductivity of 1�10-21 O-1�cm-1 and a high activation energy of ca. 1.59 eV. |
| first_indexed | 2024-03-06T07:33:04Z |
| format | Article |
| id | upm.eprints-15008 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:33:04Z |
| publishDate | 2009 |
| publisher | Springer Publishing Company |
| record_format | dspace |
| spelling | upm.eprints-150082016-01-20T02:21:05Z http://psasir.upm.edu.my/id/eprint/15008/ High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. Tan, Kar Ban Khaw, C. C. Lee, C. K. Zainal, Z. Tan, Y. P. Shaari, Hasnizam Single phase non-stoichiometric bismuth zinc niobate, Bi3Zn1.84Nb3O13.84, was fabricated by a conventional solid state method. The sample was refined and fully indexed on the cubic system, space group Fd3m (No. 227), Z = 4 with a = 10.5579(4) �. Electrical characterisation was performed using an ac impedance analyser over the temperature range of 25-850 �C and frequency range of 5 Hz-13 MHz. Typical dielectric response is observed in Bi3 Zn1.84Nb3O13.84 with a high relative permittivity, low dielectric loss and a negative temperature coefficient of capacitance, with the values of 147, 0.002 and -396 ppm/�C, at 100 kHz at ambient temperature, respectively. This material is highly resistive, with a conductivity of 1�10-21 O-1�cm-1 and a high activation energy of ca. 1.59 eV. Springer Publishing Company 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15008/1/High%20temperature%20impedance%20spectroscopy%20study%20of%20non.pdf Tan, Kar Ban and Khaw, C. C. and Lee, C. K. and Zainal, Z. and Tan, Y. P. and Shaari, Hasnizam (2009) High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. Materials Science-Poland, 27 (3). pp. 825-837. ISSN 2083-1331; ESSN: 2083-134X http://www.materialsscience.pwr.wroc.pl/ English |
| spellingShingle | Tan, Kar Ban Khaw, C. C. Lee, C. K. Zainal, Z. Tan, Y. P. Shaari, Hasnizam High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title | High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title_full | High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title_fullStr | High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title_full_unstemmed | High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title_short | High temperature impedance spectroscopy study of non-stoichiometric bismuth zinc niobate pyrochlore. |
| title_sort | high temperature impedance spectroscopy study of non stoichiometric bismuth zinc niobate pyrochlore |
| url | http://psasir.upm.edu.my/id/eprint/15008/1/High%20temperature%20impedance%20spectroscopy%20study%20of%20non.pdf |
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