Spin Filter Based on EuO Monoxide
The basis of spin filter operation is the possibility to obtain different population of states with spins up and down for free electrons. However, in a magnetic macroscopic field, scattering by heavy atoms reduces their population density by 106 times. To obtain the maximum possible degree of spin p...
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| Format: | Article |
| Language: | Russian |
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Saint Petersburg Electrotechnical University "LETI"
2018-04-01
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| Series: | Известия высших учебных заведений России: Радиоэлектроника |
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| Online Access: | https://re.eltech.ru/jour/article/view/221 |
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| _version_ | 1849249560265752576 |
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| author | Yu. F. Golovnev D. A. Nurguleev |
| author_facet | Yu. F. Golovnev D. A. Nurguleev |
| author_sort | Yu. F. Golovnev |
| collection | DOAJ |
| description | The basis of spin filter operation is the possibility to obtain different population of states with spins up and down for free electrons. However, in a magnetic macroscopic field, scattering by heavy atoms reduces their population density by 106 times. To obtain the maximum possible degree of spin polarization it is proposed to use ferromagnetic EuO in semiconductor superlattices, e. g. EuO–SrO. The article substantiates the creation of a spin filter based on a superlattice composed of SrO and EuO nanolayers. The scheme of ferromagnetic semiconductor EuO energy levels is demonstrated as well as splitting of 5d EuO levels by crystal field. The position of 4f 7-multiplet and the energy of formation of triplet exciton are determined. |
| format | Article |
| id | doaj-art-c692a515ff9d48a59e58f9aa7771deae |
| institution | Kabale University |
| issn | 1993-8985 2658-4794 |
| language | Russian |
| publishDate | 2018-04-01 |
| publisher | Saint Petersburg Electrotechnical University "LETI" |
| record_format | Article |
| series | Известия высших учебных заведений России: Радиоэлектроника |
| spelling | doaj-art-c692a515ff9d48a59e58f9aa7771deae2025-08-20T03:57:31ZrusSaint Petersburg Electrotechnical University "LETI"Известия высших учебных заведений России: Радиоэлектроника1993-89852658-47942018-04-0102555910.32603/1993-8985-2018-21-2-55-59220Spin Filter Based on EuO MonoxideYu. F. Golovnev0D. A. Nurguleev1Tula State Lev Tolstoy Pedagogical UniversityTula State Lev Tolstoy Pedagogical UniversityThe basis of spin filter operation is the possibility to obtain different population of states with spins up and down for free electrons. However, in a magnetic macroscopic field, scattering by heavy atoms reduces their population density by 106 times. To obtain the maximum possible degree of spin polarization it is proposed to use ferromagnetic EuO in semiconductor superlattices, e. g. EuO–SrO. The article substantiates the creation of a spin filter based on a superlattice composed of SrO and EuO nanolayers. The scheme of ferromagnetic semiconductor EuO energy levels is demonstrated as well as splitting of 5d EuO levels by crystal field. The position of 4f 7-multiplet and the energy of formation of triplet exciton are determined.https://re.eltech.ru/jour/article/view/221europium oxideferromagnetic semiconductortriplet exciton |
| spellingShingle | Yu. F. Golovnev D. A. Nurguleev Spin Filter Based on EuO Monoxide Известия высших учебных заведений России: Радиоэлектроника europium oxide ferromagnetic semiconductor triplet exciton |
| title | Spin Filter Based on EuO Monoxide |
| title_full | Spin Filter Based on EuO Monoxide |
| title_fullStr | Spin Filter Based on EuO Monoxide |
| title_full_unstemmed | Spin Filter Based on EuO Monoxide |
| title_short | Spin Filter Based on EuO Monoxide |
| title_sort | spin filter based on euo monoxide |
| topic | europium oxide ferromagnetic semiconductor triplet exciton |
| url | https://re.eltech.ru/jour/article/view/221 |
| work_keys_str_mv | AT yufgolovnev spinfilterbasedoneuomonoxide AT danurguleev spinfilterbasedoneuomonoxide |