论文标题
la $ _ {1.885}在单轴压力下的磁条纹的演变
Evolution of magnetic stripes under uniaxial stress in La$_{1.885}$Ba$_{0.115}$CuO$_4$ studied by neutron scattering
论文作者
论文摘要
在这里，我们介绍了单轴应力对铜系统的磁条带的影响，$ _ {2-x} $ ba $ _ {x} $ cuo $ _4 $，$ x = 0.115 $，以前发现在超导管过渡温度中具有压力诱导的增强。通过中子散射，我们表明静态条纹被压力抑制，指向超导性和静态磁性之间的权衡，与先前报道的$ $ $ $ SR的测量直接一致。此外，我们表明弹性通道中的某些减轻重量似乎已移至非弹性通道。此外，观察到，观察到应力引起的波动向典型1/8的高度偏移值转移。这些结果对丘比特系统中应力增强超导性的理论解释施加了强烈的限制。
Here we present the effect of uniaxial stress on the magnetic stripes in the cuprate system La$_{2-x}$Ba$_{x}$CuO$_4$ with $x = 0.115$, previously found to have a stress-induced enhancement in the superconducting transition temperature. By means of neutron scattering, we show that the static stripes are suppressed by stress, pointing towards a trade-off between superconductivity and static magnetism, in direct agreement with previously reported $μ$SR measurements. Additionally, we show that some of the reduced weight in the elastic channel appears to have moved to the inelastic channel. Moreover, a stress-induced momentum shift of the fluctuations towards the typical 1/8 value of commensurability is observed. These results impose a strong constraint on the theoretical interpretation of stress-enhanced superconductivity in cuprate systems.
