najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2024-15-3-340-345najo-98Research ArticlePHYSICSФИЗИКАPreparation, structure and magnetic properties of the nanostructural Ni@C films obtained by magnetron depositionНизкотемпературное магнетронное осаждение наноструктурных пленок Ni-C: синтез, структура и магнитные свойстваhttps://orcid.org/0000-0003-1258-2434ШалаевР. В.ShalayevR. V.

Ростислав В. Шалаев

283048; ул. Р. Люксембург, 72; Донецк

Rostyslav V. Shalayev

283048; R. Luxembourg str. 72; Donetsk

sharos@donfti.ruhttps://orcid.org/0000-0001-7717-8745ВарюхинВ. Н.VaryukhinV. N.

Виктор Н. Варюхин

283048; ул. Р. Люксембург, 72; Донецк

Victor N. Varyukhin

283048; R. Luxembourg str. 72; Donetsk

director@donfti.ruЛинникА. И.LinnikA. I.

283048; ул. Р. Люксембург, 72; Донецк

283048; R. Luxembourg str. 72; Donetsk

СироткинВ. В.SyrotkinV. V.

Владимир В. Сироткин

283048; ул. Р. Люксембург, 72; Донецк

Vladimir V. Syrotkin

283048; R. Luxembourg str. 72; Donetsk

vladir.52@mail.ruКостыряС. А.KostyryaS. A.

283048; ул. Р. Люксембург, 72; Донецк

283048; R. Luxembourg str. 72; Donetsk

Донецкий физико-технический институт им. А. А. ГалкинаGalkin Donetsk Institute for Physics and Engineerin202401062025153340345Copyright © Shalayev R.V., Varyukhin V.N., Linnik A.I., Syrotkin V.V., Kostyrya S.A., 20252025Шалаев Р.В., Варюхин В.Н., Линник А.И., Сироткин В.В., Костыря С.А.Shalayev R.V., Varyukhin V.N., Linnik A.I., Syrotkin V.V., Kostyrya S.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/98

   Three series of films were obtained by magnetron sputtering of the composite C-Ni target with different ratios C/Ni (vol. %) = 60/40; 40/60; 30/70. The effect of the substrate temperature on the structure and the size of film-forming nickel nanocrystallites with a carbon shell was studied with using X-ray diffraction analysis. The cluster nature of film deposition on the growth surface was established by using atomic force microscopy. The saturation magnetization of nickel nanoparticles 4πMS was measured by the inductive-frequency method and the substrate temperature dependence was studied. It has been shown that the films with a high carbon content exhibit magnetism only when deposited on hot substrates. The films with the minimum carbon concentration exhibit ferromagnetic behavior even when deposited on a relatively cold substrate.

   Три группы пленок с соотношением C/Ni=30/70; 40/60; 60/40 (об. %) были выращены методом магнетронного распыления композитной мишени Ni-C. Методом атомно-силовой микроскопии (AFM) установлена кластерная природа осаждения пленок на поверхности подложки. Рентгеновский анализ трех групп пленок позволил изучить влияние температуры подложки на структуру и размер никелевых нанокристаллитов с углеродной оболочкой, которые образуют пленку. Индуктивно-частотным методом измерена намагниченность насыщения 4πMS наночастиц никеля и исследована ее зависимость от температуры подложки. Показано, что пленки с минимальной концентрацией углерода обладают ферромагнетизмом при осаждении непосредственно на холодную подложку. Пленки с повышенной концентрацией углерода проявляют магнетизм при осаждении только на горячие подложки.

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The authors declare that there are no conflicts of interest present.