Dielectric and magnetic characteristics of Ca1−xMnxMoO4 (0 ≤ x ≤ 0.15) nanomaterials
Source abstract
Abstract
Scheelite-type Ca 1− x Mn x MoO 4 ( x = 0.0, 0.01, 0.05, 0.10 and 0.15) nanomaterials were successfully synthesized via a combustion route. Dielectric studies showed a weak n -type electrical conductivity characteristic for insulators and low relative permittivity ( ε r < 15) decreasing with increasing Mn 2+ content. CaMoO 4 and Mn 2+ -doped nanomaterials are chemically compatible with Al and Ag electrodes and promising for low-temperature co-fired ceramic applications. Magnetic studies showed, at room-temperature diamagnetism for pure CaMoO 4 , the balance between diamagnetism and paramagnetism for Ca 1− x Mn x MoO 4 ( x = 0.01) and paramagnetic behaviour when 0.05 ≤ x ≤ 0.15 as well as the short-range antiferromagnetic interactions growing in strength as Mn 2+ content increases. The Landé factor fitting procedure showed a spin-only contribution to the magnetic moment. CaMoO 4 matrix unexpectedly revealed the residual paramagnetism at low temperatures derived probably from the molybdenum ions having unpaired 4 d electrons as well as a paramagnetic-diamagnetic transition at 70 K.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
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