论文标题
完全充氧的la $ _ {2} $ cuo $ _ {4+y} $中的磁条纹的性质
Nature of the magnetic stripes in fully oxygenated La$_{2}$CuO$_{4+y}$
论文作者
论文摘要
我们介绍了最佳氧气掺杂氧气的库酸盐超导体中静态和动态磁条的中子散射研究，la $ _ {2} $ cuo $ _ {4+y} $，在$ t _ {\ rm c} = 42 $ k. polariated polariated polarys clunders cluctions pollocations cluctions pollocation cluctions in clocations = 42 $ k. polariations complotiss cloctions cuo $ _ {2}四方晶体轴和波动的条纹显示出显着的平面和面外旋转组件的重量。在零施加的磁场中，静态磁顺序以及低能波动均在$ \ hbarω= 0.3-10 $ MEV时完全开发，并且在冷却后加强了静态磁波动。我们将其解释为一种迹象表明，超导性和低能自旋波动在与具有静态磁性阶域的域分离的空间区域上在显微区域上共存。
We present triple-axis neutron scattering studies of static and dynamic magnetic stripes in an optimally oxygen-doped cuprate superconductor, La$_{2}$CuO$_{4+y}$, which exhibits a clean superconducting transition at $T_{\rm c}=42$ K. Polarization analysis reveals that the magnetic stripe structure is equally represented along both of the tetragonal crystal axes and that the fluctuating stripes display significant weight for in-plane as well as out-of-plane spin components. Both static magnetic order as well as low-energy fluctuations are fully developed in zero applied magnetic field and the low-energy spin fluctuations at $\hbar ω= 0.3-10$ meV intensify upon cooling. We interpret this as an indication that superconductivity and low-energy spin fluctuations co-exist microscopically in spatial regions which are separated from domains with static magnetic order.
