中国物理B ›› 2015, Vol. 24 ›› Issue (12): 126301-126301.doi: 10.1088/1674-1056/24/12/126301
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张安民a, 刘凯a, 籍建葶a, 何长振b, 田勇a, 金峰a, 张清明a
Zhang An-Min (张安民)a, Liu Kai (刘凯)a, Ji Jian-Ting (籍建葶)a, He Chang-Zhen (何长振)b, Tian Yong (田勇)a, Jin Feng (金峰)a, Zhang Qing-Ming (张清明)a
摘要:
Multiferroic materials are promising candidates for next-generation multi-functional devices, because of the coexistence of multi-orders and the coupling between the orders. FeVO4 has been confirmed to be a multiferroic compound, since it exhibits both ferroelectricity and antiferromagnetic ordering at low temperatures. In this paper, we have performed careful Raman scattering measurements on high-quality FeVO4 single crystals. The compound has a very rich phonon structure due to its low crystal symmetry (P-1) and at least 47 Raman-active phonon modes have been resolved in the low and hightemperature spectra. Most of the observed modes are well assigned with aid of first-principles calculations and symmetry analysis. The present study provides an experimental basis for exploring spin-lattice coupling and the mechanism of multiferroicity in FeVO4
中图分类号: (Measurements)