论文标题
Quasi-Two-two-Two三层la $ _ {2.1} $ sr $ _ {1.9} $ Mn $ _3 $ o $ $ $ _ {10} $ manganite
Magnetism in quasi-two-dimensional tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_3$O$_{10}$ manganite
论文作者
论文摘要
Tri-layer la $ _ {3-3x} $ sr $ _ {1+3x} $ Mn $ _ {3} $ o $ $ _ {10} $ ruddlesdledlesden-popper（rp）系列的Manganites $ Manganites系列是自然排列的结构，带有M-mno $ $ $ $ $ _2 $ _2 $ _2 $ _2 $（M = 3） sr）$ _ 2 $ o $ _2 $沿C轴。 RP系列锰矿的尺寸取决于钙钛矿层的数量，并显着影响系统的磁性和运输特性。三层la $ _ {2.1} $ sr $ _ {1.9} $ Mn $ _ {3} $ o $ $ _ {10} $显示二阶磁相变。已经研究了围绕过渡温度（t $ _C $）的临界行为，以了解三层la $ _ {2.1} $ _ {2.1} $ _ {1.9} $ _ {1.9} $ Mn $ _ {3} $ $ o $ $ $ $ _ {10} $ ruddlesdlesdelesdlesen-popper系列Mangan Mangan Mangan的低维磁性。我们已经确定了三层LA $ _ {2.1} $ sr $ _ {1.9} $ Mn $ _ {3} $ o $ $ _ {10} $的关键指数，该指数属于短距离二维（2d）-2d）。三层la $ _ {2.1} $ sr $ _ {1.9} $ mn $ _ {3} $ o $ $ _ {10} $锰矿的低维磁性也在重新分配组的帮助小组理论方法的帮助下进行了解释。已经表明，三层la $ _ {2.1} $ sr $ _ {1.9} $ Mn $ _ {3} $ o $ $ $ _ {10} $的分层结构在三种不同类型的交互作用中会导致三种类型因此，$ j_ {ab} $ $> $ $ $ $ j_ {c} $ $ >> $$ j'$，其中的竞争引起了t $ _ {c} $上方的倾斜的抗磁性旋转结构。基于双层锰矿中类似的磁性交互，我们建议三层la $ _ {2.1} $ sr $ _ {1.9} $ Mn $ _ {3} $ _ {3} $ $ $ $ _ {10} $应该能够在T $ _ {C} $下方托管Skyrmion下方，因为其强大的结构和分层结构。
The tri-layer La$_{3-3x}$Sr$_{1+3x}$Mn$_{3}$O$_{10}$ manganites of Ruddlesden-Popper (RP) series are naturally arranged layered structure with alternate stacking of m-MnO$_2$ (m = 3) planes and rock-salt type block layers (La, Sr)$_2$O$_2$ along c-axis. The dimensionality of the RP series manganites depends on the number of perovskite layers and significantly affects the magnetic and transport properties of the system. The tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$ shows second-order magnetic phase transition. The critical behavior of phase transition has been studied around the transition temperature (T$_C$) to understand the low dimensional magnetism in tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$ of the Ruddlesden-Popper series manganites. We have determined the critical exponents for tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$, which belong to the short-range two-dimensional (2D)-Ising universality class. The low dimensional magnetism in tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$ manganite is also explained with the help of renormalization group theoretical approach for short-range 2D-Ising systems. It has been shown that the layered structure of tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$ results in three different type of interactions intra-planer ($ J_{ab} $), intra-tri-layer ($ J_{c} $) and inter-tri-layer ($ J' $) such that $ J_{ab} $ $ > $ $ J_{c} $ $ >> $$ J' $ and competition among these give rise to the canted antiferromagnetic spin structure above T$ _{C} $. Based on the similar magnetic interaction in bi-layer manganite, we propose that the tri-layer La$_{2.1}$Sr$_{1.9}$Mn$_{3}$O$_{10}$ should be able to host the skyrmion below T$ _{C} $ due to its strong anisotropy and layered structure.
