Polarization induced ferroelectric and magnetic ordering in double-perovskite-based flexible 0–3 composite

Multifunctional Dy2NiMnO6/Reduced Graphene Oxide Nanocomposites and Their Catalytic, Electromagnetic Shielding, and Electrochemical Properties

“…101), ( 111), (020), ( 112), ( 200), ( 021), ( 202), ( 113), ( 220), ( 221), (302), ( 024), ( 204), ( 133), ( 140), (331), and (412) diffraction planes of monoclinic structure of DNMO with P2 1 /n space group. 36 However, no apparent characteristic peaks of rGO in the DNMO/rGO nanocomposites are observed in Figure 2(i)c,d, which may be because of suppresses of (002) diffraction peak due to high-intensity peaks of DNMO or restacking of graphene sheets prevented due to incorporation of DNMO into rGO sheets. 35 Raman spectroscopy is mainly used to determine the electronic and structural properties of carbonaceous materials and defects in sp 2 carbon materials.…”

“… 35 The diffraction peaks at 2θ° values of nearly 23.6, 23.9, 26.5, 32.6, 33.7, 34.5, 40.2, 42.3, 43.5, 48.1, 44.5, 54.2, 59.7, 61.1, 65.5, 70.7, 76.4, and 78.8° in Figure 2 (i)b–d are ascribed to the (110), (101), (111), (020), (112), (200), (021), (202), (113), (220), (221), (302), (024), (204), (133), (140), (331), and (412) diffraction planes of monoclinic structure of DNMO with P 2 1 / n space group. 36 However, no apparent characteristic peaks of rGO in the DNMO/rGO nanocomposites are observed in Figure 2 (i)c,d, which may be because of suppresses of (002) diffraction peak due to high-intensity peaks of DNMO or restacking of graphene sheets prevented due to incorporation of DNMO into rGO sheets. 35 …”

“…For instance, the heavy rare earth elements, such as europium, gadolinium, terbium, dysprosium, and yttrium, can be realized as perovskite oxides. In our previous work, multiferroic flexible films of double perovskite Dy 2 NiMnO 6 (DNMO) were prepared by incorporating DNMO particles in the polymeric matrix, which exhibited a large polarization and coercive field at room temperature with enhanced ferromagnetic nature and dielectric behavior with reduced dielectric loss . On the other side, microwave absorbents were fabricated by oriented nickel (Ni) in the polyvinylidene fluoride (PVDF) with different Ni proportions and tested over a wide frequency range of 18–40 GHz and showed a shielding effectiveness of 20–35 dB due to the increase in the magnetic losses in the composites .…”

“…In our previous work, multiferroic flexible films of double perovskite Dy 2 NiMnO 6 (DNMO) were prepared by incorporating DNMO particles in the polymeric matrix, which exhibited a large polarization and coercive field at room temperature with enhanced ferromagnetic nature and dielectric behavior with reduced dielectric loss. 14 On the other side, microwave absorbents were fabricated by oriented nickel (Ni) in the polyvinylidene fluoride (PVDF) with different Ni proportions and tested over a wide frequency range of 18–40 GHz and showed a shielding effectiveness of 20–35 dB due to the increase in the magnetic losses in the composites. 15 Combining the metal oxides with carbon-based and metal-dopant ingredients may improve the dielectric and magnetic losses due to the double attenuation mechanism for enhanced shielding performance.…”