Publications by authors named "P Murugavel"

Rare-earth orthochromite is an interesting system in the view of its complex magnetic ordering due to competing interaction between different magnetic ions. Here, Fe-substituted SmCrOsamples were prepared by solid-state route to investigate their intriguing magnetic properties towards exploring its application potential. The magnetic studies revealed antiferromagnetic (AFM) ordering at Nèel temperature () ∼ 181 K, magnetic compensation temperatures () at ∼137 K and 50 K, and spin-reorientation temperature () at 64 K in SmCrFeOsample.

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The enhanced electrocaloric (EC) effect in solid-state-based lead-free ferroelectric Ba(BiLi)TiO system is investigated under light as an external stimulus. The sample exhibits an analogous value of maximum change in entropy at Curie temperature, extracted from the two different measurements process. Notably, the sample depicts maximum value of adiabatic change in temperature (ΔT) as 1.

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Ferroelectric systems with multi-phase co-existence are found to exhibit anomalous photovoltaic response. In this work, detailed photovoltaic studies are carried out under 405 nm light illumination on Ba(BiLi)TiOferroelectric oxides having the co-existence of tetragonal and orthorhombic phases. The linear and sinusoidal photocurrent-dependence as a function of light intensity and polarization-direction, respectively elucidate the experimental evidence for linear bulk-photovoltaic effect.

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Organic diisopropylammonium bromide (DIPAB) is a promising material with superior ferroelectric characteristics. However, the DIPAB continuous film, which is essential to explore its application potential, is challenging because its crystallization kinetics favors island-like microcrystalline growth. In this work, the continuous and uniform deposition of organic ferroelectric DIPAB film on a single crystalline Si(100) substrate is demonstrated by a thermal evaporation process.

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The compositionally induced ferroelectric to relaxor transformation via diffuse phase transition and structural disorder by external stimuli is explored in lead-free Ba(BiLi)TiO(= 0, 0.05, 0.1, 0.

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