论文标题
Orthorhombic COSB单层中的对称性
Pairing symmetry in monolayer of orthorhombic CoSb
论文作者
论文摘要
通常认为铁磁和超导性是凝结物理学中的拮抗现象。在这里，我们从理论上研究了最近发现的单层COSB超导体的铁磁和超导命令之间的相互作用，并具有正交对称性和净磁化，并演示了COSB作为非独立超级支配的候选cosb的对称性，并具有时间符号为单位，具有时间为代码。通过执行小组理论分析和第一原则计算，建议超导顺序参数是与$^3B_ {2U} $的不可约表示的三联体配对，该代表表现出有趣的结节点和非零零定期调节，使Cooper对在Fermi Surface topologies上旋转了旋转。这些发现不仅为超导性和铁磁磁性的共存提供了重要的理论见解，而且还揭示了由三胞胎超导体中铁磁自旋波动驱动的异国情调的自旋极化库珀配对。
Ferromagnetism and superconductivity are generally considered to be antagonistic phenomena in condensed matter physics. Here, we theoretically study the interplay between the ferromagnetic and superconducting orders in a recent discovered monolayered CoSb superconductor with an orthorhombic symmetry and net magnetization, and demonstrate the pairing symmetry of CoSb as a candidate of non-unitary superconductor with time-reversal symmetry breaking. By performing the group theory analysis and the first-principles calculations, the superconducting order parameter is suggested to be a triplet pairing with the irreducible representation of $^3B_{2u}$, which displays intriguing nodal points and non-zero periodic modulation of Cooper pair spin polarization on the Fermi surface topologies. These findings not only provide a significant theoretical insight into the coexistence of superconductivity and ferromagnetism, but also reveal the exotic spin polarized Cooper pairing driven by ferromagnetic spin fluctuations in a triplet superconductor.
