Microstructure and magnetoresistance of a La0.67Ca0.33MnO3 film produced using the dip-coating method

Effect of grain size and porosity on phonon scattering enhancement of Ca3Co4O9

“…The sol-gel method is one of the best synthesis methods that yield homogeneous nano-particles [47,48]. In this study, the citrate sol-gel process [49] was applied to synthesize C-349 TE materials with particle sizes ranging from the nanoscale to the microscale.…”

Electrical Transport and Magnetoresistance of La0.67Ca0.33MnO3: Agx(x = 0, 0.1, 0.2, 0.3, 0.4) Composites

“…Therefore, in earlier studies, the effects of doping various elements into the manganites' A or B sites on the magnetotransport and MR properties has been extensively studied [5][6][7][8][9][10][11][12]. It was found that the MR effects of these compounds fall into two classes: intrinsic and extrinsic MR. Intrinsic MR is referred to as intragrain MR, which has a maximum near the Curie temperature and can be qualitatively explained by the Double-Exchange model [11,12]. The extrinsic MR is referred to intergrain MR and is observed in a wide temperature range below Tc, it is attributed to spin polarized tunneling or spin-dependent scattering at the grain boundaries [13,14].…”

Deterioration and film forming abilities of the slurries used for preparing La0.8Sr0.2MnO3 films through composite sol–gel method

“…Their film forms are of more interest than the bulk and single-crystal forms due to their potential application for the cathode in solid oxide fuel cells (SOFCs) [1], electrocatalyst in air-metal hydride (MH) battery system [4], electric heating film, thermal sensitive element [5], novel all-oxide p-n junctions, magnetic-field sensors [6], etc.…”