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  • Title: Landau Diamagnetism and de Haas-van Alphen Oscillations, Formed in Single Crystals of Y3Fe5O12, in Local Nanodimensional-Sized 2D Phase Separation Regions, Located inside Layered Domain Walls at Room Temperature and T = 77 K.
    Author: Khannanov B, Golovenchits E, Shcheglov M, Sanina V.
    Journal: Nanomaterials (Basel); 2023 Jul 24; 13(14):. PubMed ID: 37513158.
    Abstract:
    This paper presents results of the magnetic dynamics study (the microwave power absorptions at the fixed frequencies during magnetic field sweeping) in samples of Y3Fe5O12 single crystals in the form of plates and spheres of various sizes, at frequencies exceeding 30 GHz, in magnetic fields up to 18 kOe, at room temperature, and T = 77 K. It was found that in this case, the inhomogeneity's of the magnetic state manifested itself in the Y3Fe5O12 samples as 2D local phase separation regions. Such 2D phase separation regions formed inside layered domain walls representing superlattices with sizes of 700-900 Å. Depending on the shape and size of the studied plates and spheres, Landau diamagnetism or de Haas-van Alphen oscillations were observed in the 2D phase separation regions at room temperature and T = 77 K.
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