Modulation of persistent photoconductivity by electric-field-controlled strain in thin films of La0.39Pr0.24Ca0.37MnO3
作者： JF Wang , YC Jiang , ZP Wu , J Gao , None
DOI: 10.1063/1.4793534
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摘要: Thin films of La0.39Pr0.24Ca0.37MnO3 (LPCMO) were epitaxially grown on 0.7PbMg1/3Nb2/3O3-0.3PbTiO3 (PMN-PT) substrates. These LPCMO exhibited low-temperature persistent photoconductivity (PPC) when illuminated by a visible light 532 nm. Not only the resistance but also PPC modulated electric fields across PMN-PT. Detailed analysis and in situ x-ray diffraction indicate that such modulations mainly due to change lattice deformation applied via converse piezoelectric effect. It was found strain influence phase competition different ways.
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