ФИАН
Научная деятельность
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Демихов Евгений Иванович профессор доктор физ.-мат. наук
Контакты
Публикации
2021
- Демихов Е.И., Протопопов А.В., Дмитриев Д.С., Багдинова А.Н., Лысенко В.В., Рыбаков А.С., Константинов М.В., Ивлев Д.А., Буякас В.И., Гиппиус А.А.
Радиочастотные катушки для магнитно-резонансного микроскопа на основе безгелиевого томографа с полем 1,5 Тл Приборы и техника эксперимента, т. 1, стр. 123-128, (2021)
2019
- Chekhonin V.P., Abakumov M.A., Mazhuga A.G., Bagdinova A.N., Demikhov E.I., Demikhov T.E., Mishkinis B.Ya, Konstantinov M.V., Tarasov V.P., Shumm B.A., Gippius A.A., Gervits N.V., Shumm A.B.
Relaxation Properties of Contrast Media for MRI Based on Iron Oxide Nanoparticles in Different Magnetic Fields , vol. 167, N1, pp. 97-99, (2019)
- Gervits Natalia E., Gippius Andrey A., Tkachev Alexey V., Demikhov Evgeniy I., Starchikov Sergey S., Lyubutin Igor S., Vasiliev Alexander L., Chekhonin Vladimir P., Abakumov Maxim A., Semkina Alevtina S., Mazhuga Alexander G.
Magnetic properties of biofunctionalized iron oxide nanoparticles as magnetic resonance imaging contrast agents , vol. 10, pp. 1964 - 1972, (2019)
- Чехонин В.П., Абакумов М.А., Мажуга А.Г., Багдинова А.Н., Демихов Е.И., Демихов Т.Е., Мишкинис Б.Я., Константинов М.В., Тарасов В.П., Шумм Б.А., Гиппиус А.А., Гервиц Н.Е., Шумм А.Б.
Релаксационные свойства контрастных агентов для магнитно-резонансной томографии на основе наночастиц оксида железа в различных магнитных полях , т. 167, N1, стр. 104-107, (2019)
2015
- N. N. Kovaleva, D. Chvostova, A. V. Bagdinov, M. G. Petrova, E. I. Demikhov, F. A. Pudonin and A. Dejneka
Interplay of electron correlations and localization in disordered β-tantalum films: Evidence from dc transport and spectroscopic ellipsometry study Applied Physics Letters, vol. 106, p. 051907, (2015)
аннотация
We report the dc transport (5 K ≲ T ≲ 380 K) and spectroscopic ellipsometry (0.8 eV hν 8.5 eV, T ≃ 300 K) study of β-Ta films prepared by rf sputtering deposition as a function of their thickness in the range 2.5 nm ≲ d ≲ 200 nm. The dc transport of the β-Ta films with a thickness d ≳ 25 nm is characterized by negative temperature coefficient of resistivity (TCR) caused by localization effects peculiar of highly disordered metals. Their dielectric function spectra display non-metallic-like behavior due to the presence of the pronounced band at 2 eV. We found that with increasing TCR absolute value, specifying elevated degree disorder, the optical spectral weight (SW) of free charge carriers decreases. The associated SW is recovered in the range of Mott-Hubbard transitions, indicating the mechanism of localization enhancement by electronic correlations in disordered metals.
10.1063/1.4907862
недавние публикации
Расположение корпуса на территории института
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