Magnetic phase transitions in Ba<sub>0.5</sub>Sr<sub>1.5</sub>Zn<sub>2</sub>Fe<sub>11.92</sub>Al<sub>0.08</sub>O<sub>22</sub> hexaferrites
نویسندگان
چکیده
Abstract We report studies on the effect of substituting magnetic Fe 3+ cations with nonmagnetic Al in Y-type hexaferrite Ba 0.5 Sr 1.5 Zn 2 11.92 0.08 O 22 powders their properties and especially phase transitions responsible for observing magnetoelectric effect. In this research, were synthesized by citric acid sol-gel auto-combustion. After auto-combustion process, precursor annealed at 1170 °C air to obtain materials. The effects substitution structural, microstructural content investigated detail using X-ray powder diffraction scanning electron microscopy. Hysteresis measurements performed a physical-property-measurement-system (PPMS) (Quantum Design) 4.2 K room temperature. Dc-magnetic temperature dependence magnetization fields 50 Oe, 100 Oe 500 used determine applying field magnetic-phase transitions. demonstrated that helical spin state can be modified further varying field.
منابع مشابه
Theory of Magnetic Phase Transitions
The existence of magnetic order (also termed collective magnetism) that is the orderly arrangement of the magnetic spins appearing in materials below an ordering temperature (e.g., the Curie temperature, TC, of a ferromagnet or the Neel temperature, TN, of an antiferromagnet; see Magnetic Moment and Magnetization) points to a class of physical phenomena that can be described as magnetic phase t...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: ['1742-6588', '1742-6596']
DOI: https://doi.org/10.1088/1742-6596/1762/1/012034