Видання зареєстровані авторами шляхом самоархівування
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Item Temperature Dependence of the Drift Velocity of Ferromagnetic Nanoparticles in Viscous Fluids(Sumy State University, 2018) Денисов, Станіслав Іванович; Денисов, Станислав Иванович; Denysov, Stanislav Ivanovych; Yermolenko, A.S.; Bosenko, V.S.In Refs. [1, 2], the deterministic theory of drift of single-domain ferromagnetic nanoparticles in viscous fluids, which occurs due to the Magnus effect, has recently been developed and numerically confirmed. Here, we present analytical and numerical results obtained within the stochastic theory on the influence of temperature on the drift velocity.Item Minimal Set of Equations for Drift of Ferromagnetic Nanoparticles Induced by Magnetic Fields in Fluids(Sumy State University, 2018) Денисов, Станіслав Іванович; Денисов, Станислав Иванович; Denysov, Stanislav Ivanovych; Лютий, Тарас Володимирович; Лютый, Тарас Владимирович; Liutyi, Taras Volodymyrovych; Kvasnina, O.V.; Yermolenko, A.S.Recently, it has been established that ferromagnetic nanoparticles subjected to a periodic force and a non-uniformly rotating magnetic field can drift in a viscous fluid due to the Magnus effect. Because the drift phenomenon is of interest for applications such as particle separation, in this work we present a minimal set of equations for describing this phenomenon when a periodic force is induced by a gradient magnetic field.Item Formation of the sensing element of the magnetic field sensor based on Cu and Cu(Sumy State University, 2016) Нагорний, Сергій Сергійович; Нагорный, Сергей Сергеевич; Nahornyi, Serhii SerhiiovychTo form the sensing elements of the magnetic field sensors based on magneto-resistance effect, it was suggested to use a method of layer condensation in vacuum Co and Cu with the thickness of individual layers from 1 to 20 nm and sequence depending on the functionality of the finished sensitive element. For high-speed digital sensors, it is reasonable to form multilayer nanostructures of a spin-valve “sandwich” type Co(4÷12nm)/Cu(4÷8 nm)/Co(20 nm)/S (S - substrate). Co magneto-rough lower layer is additionally secured by high temperature of substrate TS = 950 K which provides high values of lower layer coercitivity Co. The sensor element based on such a multilayer structure depending on the applied external magnetic field can be located in two states “high” and “low” value of resistance that can provide a stable state of logic “zero” and “unity.”Item Magneto-deformation effect in double-layer nanodimentional film systems(Видавництво СумДУ, 2011) Чорноус, Анатолій Миколайович; Чорноус, Анатолий Николаевич; Chornous, Anatolii Mykolaiovych; Однодворець, Лариса Валентинівна; Однодворец, Лариса Валентиновна; Odnodvorets, Larysa Valentynivna; Проценко, Іван Юхимович; Проценко, Иван Ефимович; Protsenko, Ivan Yukhymovych; Проценко, Сергій Іванович; Проценко, Сергей Иванович; Protsenko, Serhii Ivanovych