We investigate the magnetic properties of the system Eu0.6La0.4-xSrxMnO3 with 0.1⩽x⩽0.3 by means of magnetic susceptibility and electron spin resonance measurements. Ferromagnetic resonance signals are observed in the paramagnetic regime from above the magnetic ordering temperature TN up to approximately room temperature. This regime is characterized by the coexistence of ferromagnetic entities within the globally paramagnetic phase. The results are compared to the Griffiths scenario reported in La1-xSrxMnO3.
Physical Review B
- Pub Date:
- August 2011
- Colossal magnetoresistance;
- Spin-orbit coupling Zeeman and Stark splitting Jahn-Teller effect;
- Exchange and superexchange interactions;
- Iron group ions and impurities