Journal
PHYSICAL REVIEW B
Volume 64, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.64.184404
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We report magnetic and transport properties of La1-xBaxMnO3 (x = 0.05-0.33) epitaxial thin films. Compared with the corresponding bulk materials. the ferromagnetic transition temperature is reduced in the compressive strained La1-xBaxMnO3 thin films with x = 0.3 and 0.33, but enhanced significantly in the tensile strained thin films with x less than or equal to 0.2. Especially, ferromagnetism and low field colossal magnetoresistance effect were observed around room temperature in x = 0.1 thin film, and as x = 0.05, a spin-canting insulating state in bulk shifts to ferromagnetic metallic state in thin film. The phase diagram of La1-xBaxMnO3 thin films was obtained, and strain effect on these novel properties was discussed.
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