Andersen Brian Møller, Hedegård Per
Ørsted Laboratory, Niels Bohr Institute, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
Phys Rev Lett. 2005 Jul 15;95(3):037002. doi: 10.1103/PhysRevLett.95.037002. Epub 2005 Jul 14.
Within a model that supports stripe spin and charge order coexisting with a d(x2-y2)-wave superconducting phase, we study the self-consistently obtained electronic structure and the associated transverse dynamical spin susceptibility. In the coexisting phase of superconducting and static stripe order, the resulting particle-hole continuum can strongly damp parts of the low-energy spin-wave branches. This provides insight into recent inelastic neutron scattering data revealing the dispersion of the low-energy collective magnetic modes of lanthanum based cuprate superconductors.
在一个支持条纹自旋和电荷序与d(x2 - y2)波超导相共存的模型中，我们研究了自洽得到的电子结构以及相关的横向动态自旋磁化率。在超导和静态条纹序的共存相中，产生的粒子-空穴连续体可以强烈地阻尼低能自旋波分支的部分。这为最近揭示基于镧的铜酸盐超导体低能集体磁模式色散的非弹性中子散射数据提供了见解。
