Critical parameters near the ferromagnetic–paramagnetic phase transition in La0.5Ca0.5−xAgxMnO3 compounds (0.1≤x≤0.2)

Effect of exceeding the concentration limit of solubility of silver in perovskites on the dielectric and electric properties of half doped lanthanum–calcium manganite

“…Chemical properties of the sample are presented in a previous work [21,22]. The sample is stoichiometric in oxygen.…”

“…There are only few reports on the study of transport properties of Ag doped LCMO [27][28][29][30]. Once structural, magnetic and optical properties of calcium-lanthanum manganite are investigated and explained, researchers are interested to the study of the effect of doping at Ca site by Sr and Ag elements on the physical properties of these manganites [21,22,31]. At our knowledge, the dielectric properties are not well investigated.…”

“…At our knowledge, the dielectric properties are not well investigated. In a recent works, more interest has been focused on investigating physical properties of La 0.5 Ca 0.5 MnO 3 [25,31,32] and magnetic/structural properties of silver-substituted La 0.5 Ca 0.5 MnO 3 compound [21,22].…”

“…The physical properties of La 1-x Ca x MnO 3 with different Ca concentration are well studied [2,20]. Recently, La 0.5 Ca 0.5 MnO 3 manganite have been the focus of scientific interest [21][22][23][24][25][26]. There are only few reports on the study of transport properties of Ag doped LCMO [27][28][29][30].…”

A-site-deficiency effect on critical behavior in the Pr0.6Sr0.4MnO3 compound

“…Manganites having the general formula R 1−x A x MnO 3 (where R is a rare-earth ion and A an alkaline-earth ion) have been extensively studied owing to the variety of their unique properties, such as colossal magneto resistance [1][2][3][4][5] and magnetocaloric behavior. [6][7][8] In order to understand the mechanism of the CMR effect, extensive studies of magnetic, structural and transport properties have been carried out on these perovskite materials. 9 Many theories, such as double-exchange (DE) interaction, 10 electron-phonon coupling, 11 spontaneous electronic phase separation, 12 and Griffiths phase (GP), 13 among others, have been proposed to understand the underlying physics of the CMR effects.…”