论文标题
不同的NMR铜层超导体视图
A different NMR view of cuprate superconductors
论文作者
论文摘要
核磁共振（NMR）是一种强大的量子探测器，但是根据最新发现和大多数NMR数据的广泛文献分析的结果，必须对基于有限数据的库酸盐物理学的早期结论进行修订。这些显示了两个影响核的耦合电子自旋成分，最容易用平面Cu移动各向异性看到。一个组成部分是从最近鉴定出的无处不在的金属激发中自旋，另一个是由于固有的，抗磁性耦合的电子铜自旋而引起的。组件及其复杂的相互作用都使他们在核转移和放松身上烙印。它们还显示了在平面Cu和O之间的电荷共享中看到的家庭依赖性。根据一种明显的现象学，讨论了两种旋转组件之间相互作用的兴奋剂和温度依赖性的现象，该现象从理论中等待解释。
Nuclear magnetic resonance (NMR) is a powerful quantum probe, but the early conclusions on the physics of the cuprates, based on a limited set of data, have to be revised in view of recent findings and results from extensive literature analyses of most NMR data. These show two coupled electronic spin components that influence the nuclei, most easily seen with the planar Cu shift anisotropy. One component is spin from the recently identified ubiquitous metallic excitations, the other due to the intrinsic, antiferromagnetically coupled electronic Cu spin. Both components and its intricate interaction leave their imprint on nuclear shifts and relaxation. They also show a family dependence seen in the charge sharing between planar Cu and O. The main phenomena of the doping and temperature dependences of the interplay between both spins components are discussed in terms of an apparent phenomenology that awaits explanation from theory.
