论文标题
在Ti掺杂双层钙的莫特过渡附近的竞争条纹阶段的出现
Emergence of Competing Stripe Phase near the Mott Transition in Ti-doped Bilayer Calcium Ruthenates
论文作者
论文摘要
我们报告了通过微波阻抗显微镜在Mott Metal-Metal-unsulator跃迁过程中Ti掺杂双层钙的纳米级成像。不同于典型的一阶相变，在两个末端相处发生的共存，沿着平面晶体轴定向的新金属条带均出现在G-Type抗磁性绝缘状态和顺磁性金属状态。可以在宏观测量中观察到该电子状态的效果，从而使我们能够构建一个相位图，以考虑到能量竞争的阶段。我们的工作提供了一种模型方法，可以将宏观特性和复杂氧化物材料中的介观相分离相关联。
We report the nanoscale imaging of Ti-doped bilayer calcium ruthenates during the Mott metal-insulator transition by microwave impedance microscopy. Different from a typical first-order phase transition where coexistence of the two terminal phases takes place, a new metallic stripe phase oriented along the in-plane crystalline axes emerges inside both the G-type antiferromagnetic insulating state and paramagnetic metallic state. The effect of this electronic state can be observed in macroscopic measurements, allowing us to construct a phase diagram that takes into account the energetically competing phases. Our work provides a model approach to correlate the macroscopic properties and mesoscopic phase separation in complex oxide materials.
