Characterization and magnetic properties of pure and transition metal doped ZnO thin films
Zinc oxide (ZnO), a hexagonal n-type semiconductor, has been widely studied because of the ease of changing its properties by doping with selected elements. Although pure ZnO is paramagnetic, many studies confirm that doped ZnO thin films show room temperature ferromagnetism. This allows the potenti...
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| مؤلفون آخرون: | , , , |
| التنسيق: | conferenceObject |
| منشور في: |
2012
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/6707 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://meetings.aps.org/Meeting/OSF12/Event/179912 |
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| _version_ | 1864513480628895744 |
|---|---|
| author | Fawaz, Wissam |
| author2 | Abdelhamid, Ehab Mishra, Debabrata Nadgomy, Boris Lawes, Gavin |
| author2_role | author author author author |
| author_facet | Fawaz, Wissam Abdelhamid, Ehab Mishra, Debabrata Nadgomy, Boris Lawes, Gavin |
| author_role | author |
| dc.creator.none.fl_str_mv | Fawaz, Wissam Abdelhamid, Ehab Mishra, Debabrata Nadgomy, Boris Lawes, Gavin |
| dc.date.none.fl_str_mv | 2012 2017-12-04T10:56:04Z 2017-12-04T10:56:04Z 2017-12-04 |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10725/6707 Abdelhamid, E., Mishra, D., Fawaz, W., Nadgorny, B., & Lawes, G. (2012, October). Characterization and magnetic properties of pure and transition metal doped ZnO thin films. In APS Ohio Sections Fall Meeting Abstracts. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://meetings.aps.org/Meeting/OSF12/Event/179912 |
| dc.language.none.fl_str_mv | en |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| dc.type.none.fl_str_mv | Conference Paper / Proceeding info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject |
| description | Zinc oxide (ZnO), a hexagonal n-type semiconductor, has been widely studied because of the ease of changing its properties by doping with selected elements. Although pure ZnO is paramagnetic, many studies confirm that doped ZnO thin films show room temperature ferromagnetism. This allows the potential to control the electrical properties of the semiconductor using magnetic fields. In this study, pure and Ti, V, and Co doped ZnO thin films were prepared on silicon substrates by spin coating. X-ray diffraction and Raman spectroscopy both confirm the formation of a single phase ZnO wurtzite structure. Magnetic measurements on the samples show magnetization for the as-prepared samples. The magnetization increases dramatically on vacuum annealing, which can be attributed to the incorporation of oxygen vacancy defects. Moreover, doping with Ti increases the saturation magnetization around five times as compared to pure ZnO, while the magnetization in the Co doped samples increases by 12 times. Finally, fitting the magnetization curves shows that the approach to saturation follows a 1/H dependence, suggesting the governance of defects rather than magnetocrystalline anisotropy. |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| id | LAURepo_60095e04330064ec3047fa2ecf92f48d |
| identifier_str_mv | Abdelhamid, E., Mishra, D., Fawaz, W., Nadgorny, B., & Lawes, G. (2012, October). Characterization and magnetic properties of pure and transition metal doped ZnO thin films. In APS Ohio Sections Fall Meeting Abstracts. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/6707 |
| publishDate | 2012 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Characterization and magnetic properties of pure and transition metal doped ZnO thin filmsFawaz, WissamAbdelhamid, EhabMishra, DebabrataNadgomy, BorisLawes, GavinZinc oxide (ZnO), a hexagonal n-type semiconductor, has been widely studied because of the ease of changing its properties by doping with selected elements. Although pure ZnO is paramagnetic, many studies confirm that doped ZnO thin films show room temperature ferromagnetism. This allows the potential to control the electrical properties of the semiconductor using magnetic fields. In this study, pure and Ti, V, and Co doped ZnO thin films were prepared on silicon substrates by spin coating. X-ray diffraction and Raman spectroscopy both confirm the formation of a single phase ZnO wurtzite structure. Magnetic measurements on the samples show magnetization for the as-prepared samples. The magnetization increases dramatically on vacuum annealing, which can be attributed to the incorporation of oxygen vacancy defects. Moreover, doping with Ti increases the saturation magnetization around five times as compared to pure ZnO, while the magnetization in the Co doped samples increases by 12 times. Finally, fitting the magnetization curves shows that the approach to saturation follows a 1/H dependence, suggesting the governance of defects rather than magnetocrystalline anisotropy.N/A2017-12-04T10:56:04Z2017-12-04T10:56:04Z20122017-12-04Conference Paper / Proceedinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10725/6707Abdelhamid, E., Mishra, D., Fawaz, W., Nadgorny, B., & Lawes, G. (2012, October). Characterization and magnetic properties of pure and transition metal doped ZnO thin films. In APS Ohio Sections Fall Meeting Abstracts.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttp://meetings.aps.org/Meeting/OSF12/Event/179912eninfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/67072021-03-19T10:43:10Z |
| spellingShingle | Characterization and magnetic properties of pure and transition metal doped ZnO thin films Fawaz, Wissam |
| status_str | publishedVersion |
| title | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| title_full | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| title_fullStr | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| title_full_unstemmed | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| title_short | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| title_sort | Characterization and magnetic properties of pure and transition metal doped ZnO thin films |
| url | http://hdl.handle.net/10725/6707 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://meetings.aps.org/Meeting/OSF12/Event/179912 |