论文标题
r $ _ {0.8} $ ce $ _ {0.2} $ Mn $ _2 $ _2 $ o $ $ _5 $（r = er，tb）实心解决方案
Frustration of Exchange-Striction Ferroelectric Ordering and Growth of Electric Polarization of Phase Separation Domains in R$_{0.8}$Ce$_{0.2}$Mn$_2$O$_5$ (R = Er, Tb) Solid Solutions
论文作者
论文摘要
稀土离子（r = er $ _3^+$，tb $ _3^+$，以及ce $ _ {3.75}^+$）对介电性能以及由r $ $ $ _ {0.8} $ ce $ _ $ _ $ _ $ _ $ _ $ _ $ _ MN $ _ MN的固体解决方案引起的介电性能和电力极化的影响。已经研究了多表情。这些参数在质量上与初始RMN $ _2 $ o $ _5 $（r = er，tb）晶体的质量不同。结果表明，由于这些离子之间具有不同价值之间的隧道电子的有限概率，在MN3+和MN4+离子子系统中形成的极相分离域的性质显着取决于这些域存在的晶体场的值。 ER $ _3^+$，TB $ _3^+$的综合影响，CE $ _ {3.75}^+$ ions可以实质地改变r $ $ _ {0.8} $ ce $ _ {0.2} $ _ {0.2} $ mn $ $ _2 $ _2 $ _5 $ _5 $ $ _5 $ $ o o o o的水晶场TB）。
The effect of rare-earth ions (R = Er$_3^+$, Tb$_3^+$, and Ce$_{3.75}^+$) on the dielectric properties and the electric polarization induced by local polar phase separation domains in solid solutions of R$_{0.8}$Ce$_{0.2}$Mn$_2$O$_5$ (R = Er, Tb) multiferroics has been studied. These parameters are found to qualitatively differ from those of initial RMn$_2$O$_5$ (R = Er, Tb) crystals studied before. It is shown that the properties of the polar phase separation domains that form in a subsystem of Mn3+ and Mn4+ ions due to a finite probability of tunneling electrons between these ions with different valences are substantially dependent on the values of crystal fields in which these domains exist. A combined influence of Er$_3^+$, Tb$_3^+$, and Ce$_{3.75}^+$ ions is found to substantially change the crystal field in R$_{0.8}$Ce$_{0.2}$ Mn$_2$O$_5$ (R = Er, Tb) as compared to RMn$_2$O$_5$ (R = Er, Tb).
