Rod motifs in neutron scattering in spin ice
Rod motifs in neutron scattering in spin ice
复制标题
自旋冰中中子散射的棒图案
DOI：
10.1103/physrevb.99.121102
复制
发表时间：
2019
影响因子：
3.7
通讯作者：
Castelnovo C
中科院分区：
文献类型：
--
作者：
Castelnovo C
在经典自旋冰和量子自旋冰中，当经典自旋冰的掐点特征被冲掉时，中子散射结构因子出现棒状特征。我们表明，这些特征并不表明垂直于杆的平面之间没有自旋相关性。相反，它们的出现是因为中子散射在很大程度上对整个过程中存在的三维相关性不敏感。我们提出了两个非常简单的模型，展示了这种散射棒的原始化身。这为它们的出现提供了一幅物理图景，阐明了单极子激发所起的作用，并确定了有利于观察它们的条件。
In classical and quantum spin ice, rodlike features appear in the neutron-scattering structure factor when the pinch points characteristic of classical spin ice get washed out. We show that these features donotindicate the absence of spin correlations between planes perpendicular to the rods. Rather, they arise because neutron scattering is largely insensitive to the three-dimensional correlations which are present throughout. We present two very simple models which exhibit a pristine incarnation of such scattering rods. This provides a physical picture for their appearance, elucidates the role played by monopole excitations, and identifies conditions conducive to their observation.
影响因子：
3.7
作者：
Chang, L. J.;Su, Y.;Lees, M. R.
通讯作者：
Lees, M. R.
库仑相诊断作为温度、相互作用范围和无序的函数。
影响因子：
8.6
作者：
Arnab Sen;R. Moessner;S. Sondhi
通讯作者：
S. Sondhi