Journal
JOURNAL OF APPLIED PHYSICS
Volume 117, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4918912
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Funding
- National Natural Science Foundation of China [11204171, 51372149, 11374204]
- Shu Guang project of Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [13SG52]
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The magnetic and electrical properties in phase-separated La0.7Ca0.3Mn0.9Cu0.1O3 perovskite were studied in detail. Experimental results show that the substitution of Cu at Mn-site suppresses the ferromagnetic (FM) phase of La0.7Ca0.3MnO3 matrix and induces a charge ordering transition at similar to 146 K. At similar to 256 K, a Griffiths-like behaviour is observed. At low temperatures, the occurrence of an irreversible metamagnetic transition associated with a large relaxation rate is analyzed, clearly indicating the dynamic phase coexistence and evolution of FM islands. A magnetic phase diagram is finally constructed based on the magnetic measurements, summarizing the dynamic evolution process of phase separation. (C) 2015 AIP Publishing LLC.
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