期刊
APPLIED PHYSICS LETTERS
卷 99, 期 9, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3633101
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资金
- Australia Research Council (ARC)
A sharp drop in resistance and a magnetization anomaly have been observed in La2/3Ca1/3MnO3 film in zero magnetic field at the BaTiO3 substrate structural phase transition temperature, due to the substrate clamping/strain effect, which is confirmed by Raman scattering. However, the anomalies for both resistance and magnetization were eliminated by a strong external magnetic field. These phenomena indicate that strain can cause colossal resistance and a change in magnetization which resembles the magnetic field effect. The interplay of the external forces (strain and magnetic field) is a good demonstration of the strong coupling between spin and lattice in colossal magnetoresistance materials. (C) 2011 American Institute of Physics. [doi:10.1063/1.3633101]
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