论文标题
双钙钛矿化合物lasrnireo6中的磁性磁子晶格
Intertwined Magnetic Sub-Lattices in the Double Perovskite Compound LaSrNiReO6
论文作者
论文摘要
我们报告了对双钙钛矿化合物lasrnireo $ _ {6} $的磁性特性的MUON自旋旋转（$μ^{+} $ SR）。使用$μ^{+} $ sr技术的独特长度和时间尺度，我们成功阐明了lasrnireo $ _ {6} $的磁接地状态，以前被视为旋转玻璃状态。取而代之的是，我们的$μ^{+} $ sr结果指向$ t _ {\ rm c} = 23 $ k的远距离订购的基态，为此预计在$ t = 0 $的情况下，静态极限。此外，在23 k $ <t \ leq $ 300 K之间，确定了三个不同的磁性阶段：密集（$ 23 $ k $ <t \ t \ leq75 $ k），稀释度（$ 75 $ k $ k $ <t \ t \ leq250 $ k）和一个promagagnetic（parmagnetic（$ t> 250 $ k）。我们的结果揭示了在唯一的双重钙钛矿结构中相互作用的两个单独但相互交织的磁性晶格如何相互作用，以及使用互补的实验技术的重要性，以完全了解复杂材料的显微镜磁性。
We report a muon spin rotation ($μ^{+}$SR) study of the magnetic properties of the double perovskite compound LaSrNiReO$_{6}$. Using the unique length and time scales of the $μ^{+}$SR technique, we successfully clarify the magnetic ground state of LaSrNiReO$_{6}$, which was previously deemed as a spin glass state. Instead, our $μ^{+}$SR results point towards a long-range dynamically ordered ground state below $T_{\rm C}= 23$ K, for which a static limit is foreseen at $T=0$. Furthermore, between 23 K$<T\leq$300 K, three different magnetic phases are identified: a dense ($23$ K$<T\leq75$ K), a dilute ($75$ K$<T\leq250$ K), and a paramagnetic ($T>250$ K) state. Our results reveal how two separate, yet intertwined magnetic lattices interact within the unique double perovskite structure and the importance of using complementary experimental techniques to obtain a complete understanding of the microscopic magnetic properties of complex materials.
