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Yazar "Gorguluer, Omer" seçeneğine göre listele

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    Hysteretic dipolar and quadrupolar properties of the spin-1 Blume-Emery-Griffiths model under pair approximation
    (World Scientific Publ Co Pte Ltd, 2021) Ozum, Songul; Erdem, Riza; Yalcin, Orhan; Gorguluer, Omer
    As a continuation of previously published work [A. Erdinc and M. Keskin, Int. J. Mod. Phys. B 18, 1603 (2004), doi:10.1142/S0217979204024823] the hysteretic properties of magnetization (m) and quadrupolar moment (q) have been investigated for the spin-1 Blume-Emery-Griffiths model using pair approximation. The magnetic field (h) dependence of m is produced for different values of the lattice coordination number (z), biquadratic interaction (k) and single-ion anisotropy (d). The (m,h) loops show different and novelty properties when d < 0. We also observed the hysteresis cycles in the (q,d), (q,h) and (m,d) planes. These curves strongly depend on biquadratic interaction k. Our results are found to be in good agreement with the other theoretical findings.
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    Structural, morphological and dielectrical properties of acorn cupule extract doped hydrogels
    (Elsevier, 2024) Gorguluer, Omer; Coskun, Ramazan; Yalcin, Orhan; Okutan, Mustafa; Uslu, Hasan; Doganay, B. Seyma
    Acorn cupule extract doped different hydrogels were prepared to examine their structural morphological and dielectrical properties at room temperature. Structural, morphological and dielectrical parameters for all samples were found by using the XRD, SEM, EDX and impedance spectroscopy. The conductivity, capacitive effect and electronic circuit properties for acorn cupule extract doped hydrogels have not studied before in the literature. Therefore, the complex impedance, capacitance, phase angles, dielectric constant, tangent factor, electric modulus and frequency evolution of ionic conductivity (s -parameters) were successfully analyzed in detail using impedance spectroscopy in the frequency range of 10 2 to 10 7 rad/s at RT. Furthermore, the Cole -Cole plots of the dielectric constant adapted to the Smith chart and general RC equivalent circuit was showed in detail. It was determined that the dielectric effect was at its highest values in the frequency range of 10 2 to 10 5 rad/s.

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