Structural, electronic, and magnetic characteristics of Cd0.5Ni0.5TiO3: a perovskite compound

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Physics A Pub Date : 2025-02-10 DOI:10.1007/s00339-025-08317-0

Senthilkumar C, Winfred Shashikanth F

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Abstract

This study investigates the structural, optical, and magnetic properties of a perovskite material, Cd_0.5Ni_0.5TiO₃ (CNTO), synthesized via the solid-state reaction method. The structural analysis of CNTO samples revealed a dependence on calcination conditions. Rietveld refinement of X-ray diffraction patterns showed that the sample calcinated at 800 °C for 5 h exhibited a trigonal structure with space group R3 (#148) and a minor secondary phase of TiO₂ with a tetragonal rutile structure (P4₂/mnm, #136). In contrast, calcination at 900 °C for 10 h yielded a pure rhombohedral ilmenite phase with no detectable secondary phase. Fourier Transform Infrared Spectroscopy (FTIR) confirmed the formation of metal-oxygen bonds, and UV-Vis spectroscopy coupled with Tauc plot analysis determined a direct bandgap of 3.0 (± 0.015) eV. Magnetic measurements indicated room temperature paramagnetism (PM), suggesting a unique combination of optical and magnetic properties. These results position CNTO as a promising candidate for optoelectronic devices and magnetic sensor applications.

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.