.png){kind=icon}
返回
Phase crystals
.png){kind=icon}
OA
AI
DOI：10.1103/PhysRevResearch.2.013104.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Superconductivity owes its properties to the phase of the electron pair condensate that breaks the U( 1) symmetry. In the most traditional ground state, the phase is uniform and rigid. The normal state can be unstable towards special inhomogeneous superconducting states: the Abrikosov vortex state and the Fulde-Ferrell-Larkin-Ovchinnikov state. Here we show that the phase-uniform superconducting state can go into a fundamentally different and more ordered nonuniform ground state, which we refer to as a phase crystal. This state breaks translational invariance through formation of a spatially periodic modulation of the phase, manifested by unusual superflow patterns and circulating currents, that also break time-reversal symmetry. We list the general conditions needed for realization of phase crystals. Using microscopic theory, we then derive an analytic expression for the superfluid density tensor for the case of a nonuniform environment in a semi-infinite superconductor. We demonstrate how the surface quasiparticle states enter the superfluid density and identify phase crystallization as the main player in several previous numerical observations in unconventional superconductors, and predict the existence of a similar phenomenon in superconductor-ferromagnetic structures. This analytic approach provides a unifying aspect for the exploration of boundary-induced quasiparticles and collective excitations in superconductors. More generally, we trace the origin of phase crystallization to nonlocal properties of the gradient energy, which implies the existence of similar pattern-forming instabilities in many other contexts.
Keyword:
TIME-REVERSAL SYMMETRY
SURFACE-STATES
SUPERCONDUCTIVITY
BREAKING
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.2
论文数:
7.6K
被引数:
2.7W
机构
引用论文
Observations on cell walls of yeasts and some other fungi by X-ray diffraction and solubility tests
PREAI
分享收藏Types of topological surface states in nodal noncentrosymmetric superconductors.png)
PHYSICAL REVIEW BOAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏Transient Supersolid Properties in an Array of Dipolar Quantum Droplets偶极量子液滴阵列中的瞬态超固特性PHYSICAL REVIEW XOAAI
PHYSICAL REVIEW XIF15.7
OAAI分享收藏A new pulsed laser deposition technique: Scanning multi-component pulsed laser deposition methodOAAI
OAAI分享收藏Distribution functions in nonequilibrium theory of superconductivity and Andreev spectroscopy in unconventional superconductorsPHYSICAL REVIEW B
OAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏Electrospun Polyvinyl Alcohol/Nanodiamond Composite Scaffolds: Morphological, Structural, and Biological Analysis静电纺丝聚乙烯醇/纳米金刚石复合支架: 形态，结构和生物学分析
PREAI
分享收藏
查看更多内容