Micro-Raman study and phase transitions of Nd0.5Ca0.5MnO3
作者： S Jandl , A A Mukhin , V Yu Ivanov , A M Balbashov
DOI: 10.1088/0953-8984/18/5/019
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摘要: A micro-Raman study of high quality Nd0.5Ca0.5MnO3 single crystals is presented, with temperature variation. Twelve Ag and eight B2g Raman active modes (simplified symmetry: Pmma space group) have been observed in resonance conditions compared to the parent charge ordered compound phonons. The detected phonons retrace magnetic structural evolutions paramagnetic, (Tco~250 K) antiferromagnetic orbital (TN~160 regimes. In particular, at T
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