Investigation into the structural and magnetic features of nickel doped U-type hexaferrites prepared through sol–gel method

Enhancement of Magnetic and Dielectric Properties of Ni0.25Cu0.25Zn0.50Fe2O4 Magnetic Nanoparticles through Non-Thermal Microwave Plasma Treatment for High-Frequency and Energy Storage Applications

“…As a result of the driven ac field, the polarization phenomenon appears and energy is stored in the substance. When an attempt is made to recover that stored energy, a small percentage of it is lost which is termed dissipated energy and can be calculated as [ 59 ]: tan (δ) = ε″/ε′. …”

Ba2−xHoxSr2−yNiyFe12O22 and its composite with MXene: synthesis, characterization and enhanced visible light mediated photocatalytic activity for colored dye and pesticide

“…10 Ferrites are dark grey or black, hard and brittle oxide ceramics. 11 Iron ore magnetite (Fe 3 O 4 ) is natural ferrite, having the chemical formula Fe 2+ Fe 2 3+ O 4 . Its equivalent general formula is formulated as Me 2+ Fe 2 3+ O 4 , here Me represents divalent metal cation (such as Cu, Mn, Co, Mg, Cd, Co, Ni, Zn etc.…”

“…Due to these characteristics, interest in hexagonal ferrites has grown significantly during the past years. 16 They are used in photocatalysis because of the light frequency they absorb for photocatalytic reaction and also due to their magnetic nature. They contain more catalytic sites which enhances their catalytic activity.…”

“…11 Iron ore magnetite (Fe 3 O 4 ) is natural ferrite, having the chemical formula Fe 2+ Fe 2 , here Me represents divalent metal cation (such as Cu, Mn, Co, Mg, Cd, Co, Ni, Zn etc.). The three forms of ferrites that may be distinguished by their crystal structures are spinel (MFe 2 O 4 ), garnet (M 3 Fe 5 O 12 ), and hexagonal (MFe 12O 19 …”