Abstract
Structural, electric and magnetic properties of YMn 1− x Fe x O 3 based ceramic compounds have been studied. The samples, prepared by a solid state reaction method, were characterized by X-ray diffraction (XRD), electric ( R ( T ) ) and magnetic measurements ( M ( T ) ) . The XRD analysis has showed that the structure of these compounds change by the increase in degree of substitution from the hexagonal ( P 6 3 c m Space Group (SG)) to the orthorhombic perovskite ( Pbnm SG). Similarly, the electrical properties varied with the materials becoming less resistive with an increase in the iron content and the relation between the thermistor constant ( B ) and temperature became linearly dependent. The magnetic characterization showed that with an increase in the iron content, the Curie temperature of antiferro-paramagnetic transition shift to higher values. At the same time, the values of effective magnetic momentum ( μ eff ) decrease as the iron content increases. The study highlights the possibility of modelling these materials for improved properties, intended to negative temperature coefficient (NTC) type thermistor applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.