{"id":8015,"date":"2024-09-13T14:06:25","date_gmt":"2024-09-13T11:06:25","guid":{"rendered":"https:\/\/quantum-electronics.ru\/en\/?p=8015"},"modified":"2024-09-16T12:29:17","modified_gmt":"2024-09-16T09:29:17","slug":"electron-diffraction-study-of-structural-changes-in-a-thin-gete-crystal-under-the-action-of-high-power-femtosecond-laser-radiation","status":"publish","type":"post","link":"https:\/\/quantum-electronics.ru\/en\/electron-diffraction-study-of-structural-changes-in-a-thin-gete-crystal-under-the-action-of-high-power-femtosecond-laser-radiation\/","title":{"rendered":"Electron diffraction study of structural changes in a thin GeTe crystal under the action of high-power femtosecond laser radiation"},"content":{"rendered":"<p>B. N. Mironov, I. V. Kochikov, S. A. Aseev, V. V. Ionin, A. V. Kiselev, A. A. Lotin, S. V. Chekalin, A. A. Ischenko, E. A. Ryabov<\/p>\n<ul>\n<li>\u00a0Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow<\/li>\n<li>\u00a0Faculty of Physics, Lomonosov Moscow State University<\/li>\n<li>Institute on Laser and Information Technologies, Branch of the Federal Research Centre \u2018Crystallography and Photonics\u2019<\/li>\n<li>MIREA\u00a0\u2014 Russian Technological University, Moscow<\/li>\n<\/ul>\n<div class=\"around-button\"><b>Abstract:<\/b> We study the possibility of a transition of a thin crystal of germanium telluride into an amorphous form as a result of the action of high-power femtosecond laser pulses at a wavelength of 800 nm. A 20-nm-thick GeTe (GT) crystalline semiconductor film is used as a sample. Structural changes are analysed using an electron diffractometer with a source of short photoelectron pulses. The diffraction patterns are analysed and the \u03b1- and \u03b2-phases in GeTe are identified. It is found that in a strong femtosecond laser field, there occurs a sample ablation process, which is accompanied by a decrease in the thickness of the crystalline phase to 5\u20136 nm without significant sample amorphisation. A feature of the observed process is the absence of a light-induced transition from the crystalline to the amorphous state when a thin GT film is irradiated with femtosecond laser pulses. Possible reasons for the observed effect are discussed.<\/div>\n<div><\/div>\n<div class=\"around-button\"><b>Keywords:<\/b> femtosecond laser radiation, phase-changing materials, electron diffraction, thin GeTe crystal.<\/div>\n<div><\/div>\n<div><b>Received:<\/b> 17.10.2022<br \/>\n<b>Revised:<\/b> 20.12.2022<br \/>\n<b>Accepted:<\/b> 20.12.2022<\/div>\n","protected":false},"excerpt":{"rendered":"<p>B. N. Mironov, I. V. Kochikov, S. A. Aseev, V. V. Ionin, A. V. Kiselev, A. A. Lotin, S. V. Chekalin, A. A. Ischenko, E. A. Ryabov \u00a0Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow \u00a0Faculty of Physics, Lomonosov Moscow State University Institute on Laser and Information Technologies, Branch of the Federal Research Centre\u2026 <span class=\"read-more\"><a href=\"https:\/\/quantum-electronics.ru\/en\/electron-diffraction-study-of-structural-changes-in-a-thin-gete-crystal-under-the-action-of-high-power-femtosecond-laser-radiation\/\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3128,3127,3126,3125,3207,3100,3208,3209,2264],"class_list":["post-8015","post","type-post","status-publish","format-standard","hentry","category-stats","tag-a-a-ischenko","tag-a-a-lotin","tag-a-v-kiselev","tag-v-v-ionin","tag-3207","tag-3100","tag-3208","tag-3209","tag-2264"],"_links":{"self":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/8015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/comments?post=8015"}],"version-history":[{"count":0,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/8015\/revisions"}],"wp:attachment":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/media?parent=8015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/categories?post=8015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/tags?post=8015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}