Effect of Eu doping on structural and magneto-electrical properties of La0.7Ca0.3MnO3 manganites

Improved electrical transport properties of polycrystalline La0.8(Ca0.12Sr0.08)MnO3 ceramics by Ag2O doping

“…These materials have different conduction mechanisms for resistivity in different temperature ranges. [32][33][34] Therefore, in order to better understand the conductive behavior of LCSMO:Ag x ceramics, in this study, we analyzed the three temperature ranges and the r-T data were tted, including the metallic regime (T < T MI ), insulating regime (T > T MI ), and all temperature zones (100 # T # 330 K). The following sections discuss these three temperature conditions in detail.…”

Infrared Emissivity of La_0.8Sr_0.2MnO₃ under 0.76-2.5 μm and 2.5-500 μm Radiation Fields

“…Sr doped lanthanum manganites (La1-xSrxMnO3) have drawn much attention due to metal-insulator transition and ferromagnetic-paramagnetic transition [1][2][3][4][5][6][7][8][9][10], and it has been found in recent years that infrared emissivity of La1-xSrxMnO3 changes significantly with temperature, as doping level x is near 0.2 [11][12][13][14][15]. K. Shimazaki et al [11] investigated the total hemispherical emittance εH of La1-xSrxMnO3 and found that εH in the vicinity of x=0.2 showed unexpected variation with temperature.…”

Infrared emissivity of Sr doped lanthanum manganites in coating form

“…It has been reported that doped manganites at certain doping levels undergo metal-insulator (MI) phase transition [11][12][13], and even two MI transition peaks were observed in several doped manganites [14]. The above mentioned phenomenon has been explained by means of double-exchange interaction between Mn 3+ and Mn 4+ , and electron-phonon interaction relating to Jahn-Tellertype lattice distortion of the MnO 6 octahedra [15][16][17].…”