Enhanced room temperature coefficient of resistivity (RT-TCR) and broad metal-insulator transition temperature (TMI) of La0.67Ca0.33-Ag MnO3 polycrystalline ceramics

Polaron hopping conduction mechanism and magnetic properties of Pb‐doped LaMnO3

“…To confirm the oxidation state of Mn atom in the samples, the high‐resolution XPS study has been performed for x = 0.0 and x = 0.10 samples as shown in Figure 6B,C. These spectra clearly revealed the Mn‐2p peak doublet (2p 3/2 and 2p 1/2 ) at their respective binding energies 641.81, 653.60 eV for x = 0.0 and 641.72, 653.52 eV for x = 0.10 samples, respectively, with a separation of about 11.79 eV due to the spin–orbit interaction, which is consistent with earlier reports 35,36 . In both the samples, the two major peaks were further deconvoluted into three peaks.…”

“…29,30 The physics of resin flow into a mold under pressure is similar to the seepage problem and so similar approaches have been used also to model the flow of resin into a mold containing fiber mats. 23,[31][32][33][34][35][36][37][38] The models are used in these cases to determine the resin flow front and mold filling times corresponding to different infiltration conditions.…”

“…These spectra clearly revealed the Mn-2p peak doublet (2p 3/2 and 2p 1/2 ) at their respective binding energies 641.81, 653.60 eV for x = 0.0 and 641.72, 653.52 eV for x = 0.10 samples, respectively, with a separation of about 11.79 eV due to the spin-orbit interaction, which is consistent with earlier reports. 35,36 In both the samples, the two major peaks were further deconvoluted into three peaks. For x = 0.0 sample, the deconvoluted peaks at F I G U R E 6 (A) X-ray photoelectron spectroscopy full survey spectra and (B-E) core-level resolution spectra for La 1-x Pb x MnO 3 (x = 0.0 and 0.10)…”

“…29,30 The physics of resin under pressure is similar to the seepage pr lar approaches have been used also to mod into a mold containing fiber mats. 23,[31][32][33][34][35][36][37][38] T in these cases to determine the resin flow ing times corresponding to different infilt Preceramic polycarbosilane polymers as precursors to make ceramic fibers 10,3 trix. [7][8][9]40,41 The chemical and volume ch pany ceramization of the polymer during documented in several studies.…”

Multifaceted Roles of Ag+ Ions within and outside La–Ca–MnO3 Perovskite Manganites: Unveiling the Room Temperature Magnetocaloric Effect

“…The peak at higher BE in Ag 3d 5/2 and Ag 3d 3/2 is ascribed to metallic Ag (Ag 0 ), whereas the peak at lower BE in Ag 3d 5/2 and Ag 3d 3/2 can be assigned to silver oxide peaks (Ag + ). 39,56 According to spectral deconvolution, Ag + contributes more to LCA10 than Ag 0 does and vice versa for LCA20, where the Ag 0 contribution is more evident over Ag + ions. As the segregated silver atoms may have reacted with carbon atoms at the surface level, the presence of an organometallic link (between Ag adatoms and carbon) in the C 1s spectra of the LCA20 specimen supports the existence of the metallic silver contribution in the system.…”