Thermoremanent magnetization and Raman study in weak ferromagnet FeBO3

Pattanayak, Namrata; Pradhan, Monalisa; Panda, Padmalochan; Giri, Bimalesh; Pradhan, Gopal K.; Samal, Debakanta

doi:10.1016/j.jmmm.2023.171453

Cited by 1 publication

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References 41 publications

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“…As the frequency increases, the ability of these dipoles to respond to the changing electric field diminishes, leading to a decrease in the dielectric constant. [42][43][44] In heterogeneous materials, such as composites, interfacial (Maxwell-Wagner) polarization can occur at the interfaces between different phases. This polarization mechanism also contributes to the frequency dependence of the dielectric constant.…”

Section: Dielectric Studymentioning

confidence: 99%

A Comprehensive Study of Cu/W Double Substitution in Strontium Manganate Ceramics for Some Device Applications

Parida

2024

Cryst. Res. Technol.

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In this communication, the synthesis and characterizations of modified strontium manganate (SrCu1/3Mn1/3W1/3O3) (SCMWO) by high‐temperature solid‐state method are reported. The structural analysis predicts a monoclinic structure with a crystallite size of 36.8 nm. The analysis of the Raman active modes reveals the presence of all the constituent atomic vibrations. The study of the ultraviolet–visible spectrum provides a bandgap energy of 1.71 eV, which may be suitable for photovoltaic applications. A Maxwell‐Wanger type of polarization effect is observed at low frequency while low dielectric loss makes the material suitable for energy storage devices. The study of the impedance plots reveals the negative temperature coefficient of resistance (NTCR) character. The activation energy increases with both frequency and temperature in the modified perovskite suggesting that conductivity of the sample increases and material characters are changing from dielectric to semiconducting. The symmetrical curves in the electrical modulus plots and shift toward higher frequency region agree with the results of the non‐Debye‐type of relaxation mechanism. The semicircular curves in the Cole–Cole plots confirm the semiconducting nature and are also well supported by the results of Nyquist plots. The studied material exhibits a semiconductor nature, which may be found suitable for energy storage device applications.

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Section: Dielectric Studymentioning

confidence: 99%

A Comprehensive Study of Cu/W Double Substitution in Strontium Manganate Ceramics for Some Device Applications

Parida

2024

Cryst. Res. Technol.

View full text Add to dashboard Cite

show abstract

Thermoremanent magnetization and Raman study in weak ferromagnet FeBO3

Cited by 1 publication

References 41 publications

A Comprehensive Study of Cu/W Double Substitution in Strontium Manganate Ceramics for Some Device Applications

A Comprehensive Study of Cu/W Double Substitution in Strontium Manganate Ceramics for Some Device Applications

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