双层Sr 3Ru 2 O 7已经收到了惊人的考虑，因为它表现出过多的外来相时，扰动。随着压力、磁场或掺杂的应用，新相出现。在这里，我们表明，创建一个表面是一种替代和有效的方式来揭示隐藏的阶段，是从那些在散装不同的调查Sr 3（Ru 1-xMnx）2 O 7的表面特性。在RuO 6八面体倾斜畸变的驱动下，Sr 3Ru 2 O 7的表面比体相金属性更弱。相反，由于Mn掺杂的倾斜消失和增强的旋转，Sr 3（Ru0.84Mn0.16）2 O 7的表面是金属的，而体是绝缘的。我们的结果表明，在表面的电子和结构的性质是密切耦合的，并符合准二维字符。
英文摘要：
Double-layered Sr3Ru2O7 has received phenomenal consideration because it exhibits a plethora of exotic phases when perturbed. New phases emerge with the application of pressure, magnetic field, or doping. Here we show that creating a surface is an alternative and effective way to reveal hidden phases that are different from those seen in the bulk by investigating the surface properties of Sr3(Ru1-xMnx)2O7. Driven by the tilt distortion of RuO6 octahedra, the surface of Sr3Ru2O7 is less metallic than the bulk. In contrast, because of the vanishing of tilt and enhanced rotation with Mn-doping, the surface of Sr3(Ru0.84Mn0.16)2O7 is metallic while the bulk is insulating. Our result demonstrates that the electronic and structural properties at the surface are intimately coupled and consistent with quasi two-dimensional character.
Investigating structure and physical properties of quaternary layered transition metal oxide Na2Cu2TeO6
UGC-DAE Consortium for Scientific Research, Mumbai Centre, Bhabha Atomic Research Centre（UGC-DAE科学研究中心孟买中心，巴哈原子研究中心）；Savitribai Pule Pune University（萨维特里拜·普勒浦那大学）
Quantum spin liquid phase in the Shastry-Sutherland model revealed by high-precision infinite projected entangled-pair states
Institute for Theoretical Physics, University of Amsterdam（阿姆斯特丹大学理论物理研究所）；Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL)（洛桑联邦理工学院物理研究所）
Evolution from Itinerant Antiferromagnet to Unconventional Superconductor with Fluorine Doping in La(O_{1-x}F_{x})FeAs Revealed by ^{75}As and ^{139}La Nuclear Magnetic Resonance
