Oxygen Vacancy Relaxation and Domain Wall Hysteresis Motion in Cobalt-Doped Barium Titanate Ceramics
Mechanical and dielectric loss measurements were carried out in the BaTiO3 ceramics doped with Co at frequencies between 0.01 Hz and 1 MHz as a function of temperature from −150° to 150°C. The relaxation peak observed in the ferroelectric phase with an activation energy of 0.27 eV is assumed to be r...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2005-04, Vol.88 (4), p.907-911 |
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| creator | Cheng, Bo Lin Button, Tim W. Gabbay, Maurice Fantozzi, Gilbert Maglione, Mario |
| description | Mechanical and dielectric loss measurements were carried out in the BaTiO3 ceramics doped with Co at frequencies between 0.01 Hz and 1 MHz as a function of temperature from −150° to 150°C. The relaxation peak observed in the ferroelectric phase with an activation energy of 0.27 eV is assumed to be related to the motion of oxygen vacancies. This peak could be because of the reorientation of an electrical dipole made of oxygen vacancies and Co3+ ions in the lattice. Furthermore, another loss peak located just below the Curie temperature Tc could be interpreted as hysteretic motion of the domain walls in a regime where the domain wall density is changing. |
| doi_str_mv | 10.1111/j.1551-2916.2005.00167.x |
| format | Article |
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The relaxation peak observed in the ferroelectric phase with an activation energy of 0.27 eV is assumed to be related to the motion of oxygen vacancies. This peak could be because of the reorientation of an electrical dipole made of oxygen vacancies and Co3+ ions in the lattice. Furthermore, another loss peak located just below the Curie temperature Tc could be interpreted as hysteretic motion of the domain walls in a regime where the domain wall density is changing.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1551-2916.2005.00167.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Science Inc</publisher><subject>Applied sciences ; Building materials. Ceramics. 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Glasses</subject><subject>Ceramic industries</subject><subject>Ceramics</subject><subject>Chemical industry and chemicals</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Crystal lattices</subject><subject>Dielectric properties</subject><subject>Dielectric, piezoelectric, ferroelectric and antiferroelectric materials</subject><subject>Dielectrics, piezoelectrics, and ferroelectrics and their properties</subject><subject>Electrotechnical and electronic ceramics</subject><subject>Exact sciences and technology</subject><subject>Mechanical properties</subject><subject>Niobates, titanates, tantalates, pzt ceramics, etc</subject><subject>Oxygen</subject><subject>Physics</subject><subject>Technical ceramics</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNkUtv1DAUhSMEEkPhP1hIsEvqR-LHCpVMmYL6QFCoxMa6cTzIQx6DnVGTf48zUxWpm9Yb2zrfPVdHJ0kQwRmJ53iTkaIgKVWEZxTjIsOYcJGNz5LFvfA8WWCMaSokxS-TVyFs4pcomS-S-mqcftsO_QQDnZnQN9vACIPrOwRdjZZ9C65DN9A06GwKg_U2uIAu-j0RlbKvoBnSZb-1NfoI3u1adO0G6GCwqLQeWmfC6-TFGppg39zdR8mPT6fX5Vl6frX6XJ6cp6bATKTGVEphrCSzBYspjASJZSUZicFyIY2qFKdGkGqtFBDLuGEqr6GuLcdEYnaUvD_4bn3_d2fDoFsXjG0a6Gy_C5oqGmMr8TgoOc05fxJIBBEqgm8fgJt-57uYVtOoFzGAjJA8QMb3IXi71lvvWvCTJljPbeqNnkvTc2l6blPv29RjHH135w_BQLP2sS0X_s8LkmMu5hUfDtyta-z0ZH_95aQ83b-jQ3pwcLHu8d4B_B8dVVHom8uV_rX8_pWvLpi-ZP8ATzjADg</recordid><startdate>200504</startdate><enddate>200504</enddate><creator>Cheng, Bo Lin</creator><creator>Button, Tim W.</creator><creator>Gabbay, Maurice</creator><creator>Fantozzi, Gilbert</creator><creator>Maglione, Mario</creator><general>Blackwell Science Inc</general><general>Blackwell</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7SP</scope><scope>7U5</scope><scope>L7M</scope></search><sort><creationdate>200504</creationdate><title>Oxygen Vacancy Relaxation and Domain Wall Hysteresis Motion in Cobalt-Doped Barium Titanate Ceramics</title><author>Cheng, Bo Lin ; Button, Tim W. ; Gabbay, Maurice ; Fantozzi, Gilbert ; Maglione, Mario</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5037-ccb9900983e53016c8a808b831200478c9b962c71bf99a1e36c394dadde601803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Building materials. 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The relaxation peak observed in the ferroelectric phase with an activation energy of 0.27 eV is assumed to be related to the motion of oxygen vacancies. This peak could be because of the reorientation of an electrical dipole made of oxygen vacancies and Co3+ ions in the lattice. Furthermore, another loss peak located just below the Curie temperature Tc could be interpreted as hysteretic motion of the domain walls in a regime where the domain wall density is changing.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science Inc</pub><doi>10.1111/j.1551-2916.2005.00167.x</doi><tpages>5</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Ceramics Chemical industry and chemicals Condensed matter: electronic structure, electrical, magnetic, and optical properties Crystal lattices Dielectric properties Dielectric, piezoelectric, ferroelectric and antiferroelectric materials Dielectrics, piezoelectrics, and ferroelectrics and their properties Electrotechnical and electronic ceramics Exact sciences and technology Mechanical properties Niobates, titanates, tantalates, pzt ceramics, etc Oxygen Physics Technical ceramics |
| title | Oxygen Vacancy Relaxation and Domain Wall Hysteresis Motion in Cobalt-Doped Barium Titanate Ceramics |
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