Open AccessEnhanced magneto-dielectric response in La-doped Co2U hexaferrite
Author(s) -
Parambir Singh Malhi,
Anupinder Singh,
Mandeep Singh,
Sachin Kumar Godara,
Sandeep Kaur,
Mehak Arora,
Anil K. Sood
Publication year - 2021
Publication title -
journal of advanced dielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 13
eISSN - 2010-135X
pISSN - 2010-1368
DOI - 10.1142/s2010135x21500260
Subject(s) - coercivity , materials science , dielectric , magnetization , magnetometer , condensed matter physics , analytical chemistry (journal) , diffraction , phase (matter) , doping , magneto , hexagonal crystal system , nuclear magnetic resonance , magnetic field , crystallography , magnet , physics , optics , chemistry , optoelectronics , chromatography , quantum mechanics
The U-type hexaferrites ([Formula: see text][Formula: see text]Co 2 [Formula: see text][Formula: see text] ([Formula: see text] 0, 0.05, 0.10, 0.15, 0.20, 0.25) have been synthesized by auto-combustion method. The work involves the study of structural, microstructural, dielectric, magnetic and magneto-dielectric properties of the prepared materials. The structural analysis has been done by X-ray diffraction technique along with Le Bail refinement which confirmed the pure hexagonal phase for all the samples. The microstructural analysis has been carried out by field-emission scanning electron microscopy. The vibrating sample magnetometer is used to measure the magnetic properties. The sample with a composition of [Formula: see text] 0.15 has shown the maximum magnetization of approximately 73.31 emu/g with the remnant magnetization of 38.89 emu/g and coercive field of 1.77 kOe at room temperature. Moreover, the same sample has delivered the maximum magneto-dielectric response of about 54.18% at 1.5-T field.