Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies
We studied structural, optical and magnetic properties of high-quality 5 and 15% Co-doped ZnO films grown by plasma-assisted molecular beam epitaxy (MBE) on (0001)- sapphire substrates. Magnetic force microscopy (MFM) and magnetic measurements with a SQUID magnetometer show clear ferromagnetic behav...
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| Опубліковано в: : | Semiconductor Physics Quantum Electronics & Optoelectronics |
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| Дата: | 2011 |
| Автори: | , , , , , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2011
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/117606 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies / V.V. Strelchuk, V.P. Bryksa, K.A. Avramenko, P.M. Lytvyn, M.Ya. Valakh, V.O. Pashchenko, O.M. Bludov, C. Deparis, C. Morhain, P. Tronc // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 1. — С. 31-40. — Бібліогр.: 41 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-117606 |
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dspace |
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Strelchuk, V.V. Bryksa, V.P. Avramenko, K.A. Lytvyn, P.M. Valakh, M.Ya. Pashchenko, V.O. Bludov, O.M. Deparis, C. Morhain, C. Tronc, P. 2017-05-25T16:28:17Z 2017-05-25T16:28:17Z 2011 Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies / V.V. Strelchuk, V.P. Bryksa, K.A. Avramenko, P.M. Lytvyn, M.Ya. Valakh, V.O. Pashchenko, O.M. Bludov, C. Deparis, C. Morhain, P. Tronc // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 1. — С. 31-40. — Бібліогр.: 41 назв. — англ. 1560-8034 PACS 63.20.kk, 75.30.Et, 75.70.-i https://nasplib.isofts.kiev.ua/handle/123456789/117606 We studied structural, optical and magnetic properties of high-quality 5 and 15% Co-doped ZnO films grown by plasma-assisted molecular beam epitaxy (MBE) on (0001)- sapphire substrates. Magnetic force microscopy (MFM) and magnetic measurements with a SQUID magnetometer show clear ferromagnetic behavior of the films up to room temperature, while they are antiferromagnetic below approximately 200 K. Temperature dependences of the carrier mobility were determined using Raman line shape analysis of the longitudinal optical phonon-plasmon coupled modes. It has been show that the microscopic mechanism for ferromagnetic ordering is coupling mediated by free electron spins of Co atoms. These results bring insight into a subtle interplay between charge carriers and magnetism in MBE-grown Zn₁₋xCoxO films. This work was supported by the Ukrainian-French scientific project of PHC DNIPRO 2011 N 24661 and program “Nanotechnology and Nanomaterials” (project M90/2010) by Ministry of Education and Science of Ukraine. en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| spellingShingle |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies Strelchuk, V.V. Bryksa, V.P. Avramenko, K.A. Lytvyn, P.M. Valakh, M.Ya. Pashchenko, V.O. Bludov, O.M. Deparis, C. Morhain, C. Tronc, P. |
| title_short |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| title_full |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| title_fullStr |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| title_full_unstemmed |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| title_sort |
ferromagnetism in co-doped zno films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies |
| author |
Strelchuk, V.V. Bryksa, V.P. Avramenko, K.A. Lytvyn, P.M. Valakh, M.Ya. Pashchenko, V.O. Bludov, O.M. Deparis, C. Morhain, C. Tronc, P. |
| author_facet |
Strelchuk, V.V. Bryksa, V.P. Avramenko, K.A. Lytvyn, P.M. Valakh, M.Ya. Pashchenko, V.O. Bludov, O.M. Deparis, C. Morhain, C. Tronc, P. |
| publishDate |
2011 |
| language |
English |
| container_title |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| format |
Article |
| description |
We studied structural, optical and magnetic properties of high-quality 5 and 15% Co-doped ZnO films grown by plasma-assisted molecular beam epitaxy (MBE) on (0001)- sapphire substrates. Magnetic force microscopy (MFM) and magnetic measurements with a SQUID magnetometer show clear ferromagnetic behavior of the films up to room temperature, while they are antiferromagnetic below approximately 200 K. Temperature dependences of the carrier mobility were determined using Raman line shape analysis of the longitudinal optical phonon-plasmon coupled modes. It has been show that the microscopic mechanism for ferromagnetic ordering is coupling mediated by free electron spins of Co atoms. These results bring insight into a subtle interplay between charge carriers and magnetism in MBE-grown Zn₁₋xCoxO films.
|
| issn |
1560-8034 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/117606 |
| citation_txt |
Ferromagnetism in Co-doped ZnO films grown by molecular beam epitaxy: magnetic, electrical and microstructural studies / V.V. Strelchuk, V.P. Bryksa, K.A. Avramenko, P.M. Lytvyn, M.Ya. Valakh, V.O. Pashchenko, O.M. Bludov, C. Deparis, C. Morhain, P. Tronc // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 1. — С. 31-40. — Бібліогр.: 41 назв. — англ. |
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