N. I. Nurgazizov, D. A. Bizyaev, A. P. Chuklanov, A. A. Bukharaev, L. V. Bazan, V. Ya. Shur, A. R. Akhmatkhanov
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The Ferromagnetic Resonance and Probe Microscopy Studies of Temperature-Induced Uniaxial Deformations in Planar Ferromagnetic Microparticles
Square planar nickel microparticles deposited on the surface of single crystals of lithium niobate in the hexagonal phase and potassium titanyl phosphate were studied. Because the thermal expansion coefficients of these single crystals strongly differ, the uniaxial anisotropy is induced in the microparticles by heating or cooling relative to the deposition temperature. The phenomenon of the induction of anisotropy was explored using magnetic force microscopy and ferromagnetic resonance spectroscopy. Data obtained from ferromagnetic resonance spectra show that, in the ensemble of microparticles, with increasing temperature of the samples from –10 to 60°C, the axis of anisotropy rotates by 90°. This agrees well with the data about the domain structure of an individual microparticle, obtained by magnetic force microscopy.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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