Structure, magnetic and electrical properties of La0.6Sr0.4−xKxMnO3 perovskites

Structural, magnetotransport, and magnetocaloric properties of La0.7Sr0.3−Ag MnO3 perovskite manganites

“…These compounds crystallize in a rhombohedral distorted perovskite structure with R3c space group [16] and exhibit both paramagnetic-ferromagnetic and semiconductor-metallic transitions with decreasing temperature. Only few reports on the magnetic and electrical properties of divalent substituted of lanthanum perovskites in which the 0925 divalent ion (Ca 2+ /Sr 2+ ) has been partially replaced by monovalent ion (Na + /K + ) [17][18][19] have been published.…”

Influence of A-site cation size-disorder on structural, magnetic and magnetocaloric properties of La0.7Ca0.3−xKxMnO3 compounds

“…The structural disorder produces a strong local stress in MnO 6 octahedra (resulting in rotation), modifying Recently, many studies of manganites doped with divalent ion have been reported [11,12]. However, there is substantially less information in literature regarding the substitution in the A-site with a monovalent ion [13,14].…”

Structural, magnetic and magnetocaloric effect in double perovskite Ba2CrMo1−xWxO6

“…In particular, a giant magnetocaloric effect takes place in Fe 49 Rh 51 [8] and Gd 5 Si 2 Ge 2 [9] at the first-order transition temperature. Recently the attention have been focused on perovskite type ferromagnetic oxides and double perovskites which have become a subject attracting a considerable amount of investigation due to the colossal magnetoresistance (CMR) [10][11][12][13][14][15] and large magnetocaloric (MC) effect near the second order transition temperature T C [16,17]. In this paper, we report on the magnetocaloric effect of double perovskite Ba 2 CrMo 1−x W x O 6 (x = 0, 0.2 and 0.5) as a function of W concentration x, temperature T and applied field H.…”