Sr 3Ru 2 O 7的相图包含一个变磁性转变，该转变分叉以封闭具有有趣特性的异常相-具有各向异性的大电阻率，打破了晶格对称性。我们认为这是空间非均匀超导Fulde-Ferrell-Larkin-Ovchinnikov态的磁模拟。基于斯通纳磁性的微观理论，我们推导出一个金斯堡-朗道展开，横向于所施加的磁场的磁化强度可以成为空间不均匀的。我们表明，这再现了所观察到的Sr 3Ru 2 O 7的相图。
英文摘要：
The phase diagram of Sr3Ru2O7 contains a metamagnetic transition that bifurcates to enclose an anomalous phase with intriguing properties - a large resistivity with anisotropy that breaks the crystal-lattice symmetry. We propose that this is a magnetic analogue of the spatially inhomogeneous superconducting Fulde-Ferrell-Larkin-Ovchinnikov state. Based on a microscopic theory of Stoner magnetism we derive a Ginzburg-Landau expansion where the magnetisation transverse to the applied field can become spatially inhomogeneous. We show that this reproduces the observed phase diagram of Sr3Ru2O7.
Inhomogeneous magnetic phases: a LOFF-like phase in Sr3Ru2O7
Sr 3Ru 2 O 7的相图包含一个变磁性转变，该转变分叉以封闭具有有趣特性的异常相-具有各向异性的大电阻率，打破了晶格对称性。我们提出这是空间非均匀超导Fulde-Ferrel-Larkin-Ovchinnikov态的磁模拟。我们表明-通过金斯堡-朗道扩展横向于所施加的磁场的磁化强度可以成为空间不均匀的-与电子能带色散的斯通纳模型可以重现这种相图和运输行为。
Comparison of the normal state properties of $κ$-(BEDT-TTF)$_2$Cu(NCS)$_2$ and its deuterated analogue in high magnetic fields and under high hydrostatic pressures
Magnetism in artificial Ruddlesden-Popper iridates leveraged by structural distortions
我们报道了由单层和双层SrIrO $_3$与SrTiO $_3$间隔组成的超晶格中磁相互作用的调谐。磁散射显示占主导地位的$c$轴反铁磁取向的磁矩的双层证明这些系统作为可行的人工类似物的散装Ruddlesden-Popper系列铱酸盐。在两种超晶格中均观察到磁振子能隙，双层中的能隙大小减小到其体结构类似物Sr $_3$ Ir $_2$ O $_7$的近一半。我们将此分配给修改的各向异性交换驱动的弯曲的$c$轴Ir-O-Ir键和随后的局部环境的变化，通过X射线衍射检测和使用自旋波理论建模。这些发现解释了即使是由虹膜状结构中的异质结构驱动的细微结构调制，也是如何通过自旋轨道耦合来驱动磁相互作用的巨大变化的。
Condensation, excitation, pairing, and superfluid density in high-$T_{c}$ superconductors: magnetic resonance mode as a roton analogue and a possible spin-mediated pairing
