NMR evidence for two-phase character of ferromagnetic manganites

Abstract A thorough analysis of the spin–spin relaxation and 55 Mn NMR line shape revealed that in the number of manganites, including La 0.7 Ca 0.3 MnO 3 and La 0.7 Sr 0.3 MnO 3 , two different ferromagnetic phases with mobile holes coexisted below T C in a certain temperature interval, which depended on the composition. The phase with lower hyperfine field has a faster nuclear relaxation, and its volume decreases with decreasing temperature.