55Mn NMR investigation of electronic phase separation in La1-xCaxMnO3 for 0.2 < or = x < or = 0.5.
55Mn NMR line shape measurements in La1-xCaxMnO3 for 0.20< or =x< or =0.50 provide experimental evidence about the existence of two distinct regions in the T-x magnetic phase diagram, where the homogeneous ferromagnetic (FM) metallic state is separated into FM metallic and FM insulating regions. These results are in agreement with recent theoretical predictions, which reveal a novel electronic phase separation in two FM states, providing orbital ordering and Jahn-Teller phonons are taken into consideration.
Papavassiliou
G
G
Institute of Materials Science, National Center for Scientific Research "Demokritos," 153 10 Athens, Greece.
Fardis
M
M
Belesi
M
M
Maris
T G
TG
Kallias
G
G
Pissas
M
M
Niarchos
D
D
Dimitropoulos
C
C
Dolinsek
J
J