0000000001080474
AUTHOR
L. Righi
Band filling effect on polaron localization in La$_{1-x}($Ca$_y$Sr$_{1-y}$)$_{x}$MnO$_3$ manganites
We report on an a $\mu$SR and $^{55}$Mn NMR investigation of the magnetic order parameter as a function of temperature in the optimally doped La$_{5/8}$(Ca$_y$Sr$_{1-y}$)$_{3/8}$MnO$_3$ and in the underdoped La$_{1-x}$Sr$_{x}$MnO$_3$ and La$_{1-x}$Ca$_{x}$MnO$_3$ metallic manganite families. The study is aimed at unraveling the effect of lattice distortions, implicitly controlled by the Ca-Sr isoelectronic substitution, from that of hole doping $x$ on the Curie temperature $T_c$ and the order of the magnetic transition. At optimal doping, the transitions are second order at all $y$ values, including the $y=1$ (La$_{5/8}$Ca$_{3/8}$MnO$_3$) end member. In contrast, they are first order in the…
CCDC 170243: Experimental Crystal Structure Determination
Related Article: R.Bhattacharya, A.Ghosh, M.S.Ray, L.Righi, G.Bocelli, S.Chaudhuri, R.D.Willett, J.M.Clemente-Juan, E.Coronado, C.J.Gomez-Garcia|2003|Eur.J.Inorg.Chem.||4253|doi:10.1002/ejic.200300110