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https://elib.bsu.by/handle/123456789/233816| Title: | Нанообъекты в образцах Ti-Se под воздействием электронного пучка ПЭМ |
| Other Titles: | Nano-Objects in Ti-Se Samples under Action of the Tem Electron Beam / Vladimir Kolosov, Alexandr Titov, Anton Yushkov, Natalia Eliseeva |
| Authors: | Колосов, В. Ю. Титов, А. Н. Юшков, А. А. Елисеева, Н. Ю. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
| Issue Date: | 2019 |
| Publisher: | Минск : БГУ |
| Citation: | Взаимодействие излучений с твердым телом = Interaction of Radiation with Solids : материалы 13-й Междунар. конф., Минск, Беларусь, 30 сент. – 3 окт. 2019 г. / редкол.: В. В. Углов (отв. ред.) [и др.]. – Минск : БГУ, 2019. – С. 393-394. |
| Abstract: | Селенид титана был получен методом газотранспортных реакций в условиях избытка селена. Образцы для ПЭМ-исследований представляют собой порошок, оставшийся после извлечения массивного образца из ампулы. В образцах выявлены нанообъекты – трубки, «рельсы», кристаллические хлопья. Эти объекты чувствительны к воздействию электронного пучка – происходит их аморфизация и утрата структуры. |
| Abstract (in another language): | TiSe2 shows a transition to a condition with a charge density wave, described as the state of an excitonic insulator (Keldysh – Kopaev transition). A sample of Ti-Se was obtained in the process of growing TiSe2 single crystals from a previously synthesized mixture. The crystals were grown by the method of gas-transport reactions with an excess of selenium as a carrier gas. The transfer occurred at the cold end of the ampoule. The temperature of the cold end was 600 C, the hot end was 800 C. TEM sample is a powder from the hot end of the ampoule, remaining after extraction of the obtained single crystals. The TEM reveals mixture of various nanoobjects besides TiSe2 microcrystals and nanoflakes. The most interesting are linearly elongated nanorod-like objects, ~ 20 - 50 nm wide and 100 nm-1 micron in length, demonstrating crystalline diffraction and some internal structure. TEM identifies 2 types of them, resembling multi-layered nanotubes and "nanorails". Under the action of the TEM electron beam, these objects were amorphized. |
| Description: | Секция 4. Формирование наноматериалов и наноструктур = Section 4. Formation of Nanomaterials and Nanostructures |
| URI: | http://elib.bsu.by/handle/123456789/233816 |
| ISSN: | 2663-9939 |
| Appears in Collections: | 2019. Взаимодействие излучений с твердым телом = Interaction of Radiation with Solids |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 393-394.pdf | 594,15 kB | Adobe PDF | View/Open |
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