论文标题
在存在涡流的情况下，在涡流的情况下，fulde-ferrell-larkin-ovchinnikov的微观艾伦伯格理论
Microscopic Eilenberger theory of Fulde-Ferrell-Larkin-Ovchinnikov states in the presence of vortices
论文作者
论文摘要
从理论上讲，我们通过使用微观古典艾伦贝格方程来研究Fulde-Ferrell-Larkin-ovchinnikov（FFLO）状态。在三维球形费米表面模型和$ s $ - 波配对的情况下，对涡流引起的Pauli parmagnetic效应和轨道下降效应进行了相等的治疗。详细研究了LO状态的现场演变，例如$ H $ -T $相图，顺序参数的空间结构，顺磁矩和内部提交。各种热力学量的田间依赖性：计算了磁磁矩，熵和零能量的状态密度。这些数量在进入LO状态后已开始迅速增长。我们还评估了LO调制的波长，小角度中子散射的通量线晶格形式以及NMR光谱以促进LO状态的鉴定。相对研究了两种强和中间的Pauli顺磁效应的病例。 SR $ _2 $ ruo $ _4 $，CECOIN $ _5 $，CECU $ _2 $ _2 $ SI $ _2 $中的LO阶段的可能性进行了严格的检查，并且有机超导体进行了仔细检查，并至关重要的实验来识别它的建议。
We theoretically investigate the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state by using the microscopic quasi-classical Eilenberger equation. The Pauli paramagnetic effects and the orbital depairing effects due to vortices are treated in an equal footing for three dimensional spherical Fermi surface model and $s$-wave pairing. The field evolution of the LO state is studied in detail, such as the $H$-$T$ phase diagram, spatial structures of the order parameter, the paramagnetic moment, and the internal filed. Field-dependences of various thermodynamic quantities: the paramagnetic moment, entropy, and the zero-energy density of states are calculated. Those quantities are shown to start quickly growing upon entering the LO state. We also evaluate the wave length of the LO modulation, the flux line lattice form factors for small angle neutron scattering, and the NMR spectra to facilitate the identification of the LO state. Two cases of strong and intermediate Pauli paramagnetic effect are studied comparatively. The possibility of the LO phase in Sr$_2$RuO$_4$, CeCoIn$_5$, CeCu$_2$Si$_2$, and the organic superconductors is critically examined and crucial experiments to identify it are proposed.
