Magnetic, dielectric and magnetoelectric properties of new family of orthorhombic multiferroic Eu_1−xY_xMNO₃ manganites

详细信息    查看全文

• 作者：V.Yu. Ivanov ; A.A. Mukhin ; V.D. Travkin ; A.S. Prokhorov ; A.M. Kadomtseva ; Yu.F. Popov ; G.P. Vorob’ ; ev ; K.I. Kamilov and A.M. Balbashov
• 关键词：Multiferroic ; Incommensurate magnetic structure ; Electric polarization ; Manganites ; Field-induced transition
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2006
• 出版时间：May 2006
• 年：2006
• 卷：300
• 期：1
• 页码：e130-e133
• 全文大小：826 K

文摘

Multiferroic ground states with a spatially modulated antiferromagnetic structure and electric polarization have been revealed in Eu_1−xY_xMnO₃ (0.2x0.5) single crystals. While the slightly substituted (x0.1) compounds exhibited a transition from the incommensurate (IC) to the canted antiferromagnetic (CAF) state at a4533"" title=""Click to view the MathML source"">T_CA<T_N, the transitions from IC to commensurate ferroelectric (C/FE) phase were observed at eaf38b9612ac805b8306"" title=""Click to view the MathML source"">T_lock<T_N for x>0.2. Various phase transitions were observed in the magnetic fields up to 250 kOe along a, b, c axes by magnetization, magnetostriction and electric polarization measurements which show an existence of a spontaneous electric polarization below T_lock.