论文标题
抗铁磁有序状态Ce $ _ {3} $ tibi $ _ {5} $带Ce Zig-Zag链的磁电效应
Magnetoelectric Effect in the Antiferromagnetic Ordered State of Ce$_{3}$TiBi$_{5}$ with Ce Zig-Zag Chains
论文作者
论文摘要
在这项研究中，我们研究了新发现的抗铁磁（AFM）化合物CE $ _ {3} $ tibi $ _ {5} $具有六边形结构（Space Group $ P6_ {3} $/$ MCM $）。在此系统中，CE离子形成沿$ C $轴延伸的曲折链链。尽管晶体结构具有反转中心，但我们专注于CE位置缺乏局部反转对称性。一项理论研究已经预测，磁化强度可以通过锯齿形链上的AFM订购中的电流诱导。我们对CE $ _ {3} $ tibi $ _ {5} $进行了磁化测量，并在应用的恒定电流和AFM订购温度周围的静态磁场下进行了$ t _ {\ rm n} $ = 5.0 k。电流引起的磁化强度具有线性电流依赖性，并且没有磁场依赖性。这种行为与在铁螺母有序状态下对ME效应的理论预测一致。
In this study, we investigate the magnetoelectric (ME) effect of the newly discovered antiferromagnetic (AFM) compound Ce$_{3}$TiBi$_{5}$ with a hexagonal structure (space group $P6_{3}$/$mcm$). In this system, Ce ions form zig-zag chains that extend along the $c$-axis. We focus on the lack of the local inversion symmetry at the Ce site, although the crystal structure has an inversion center. A theoretical study has predicted that magnetization can be induced by an electric current in the AFM ordering on the zig-zag chain. We conducted magnetization measurements on Ce$_{3}$TiBi$_{5}$ under an applied constant electric current and a static magnetic field around the AFM ordering temperature of $T_{\rm N}$ = 5.0 K. We successfully observed of the current-induced magnetization below $T_{\rm N}$. The magnitude of the current-induced magnetization has a linear electric current dependence and exhibits no magnetic field dependence. This behavior is consistent with the theoretical prediction of the ME effect in the ferrotoroidal ordered state.
