论文标题

通过在$ \ mathrm中订购竞赛引起的不相称的磁状态{ba_ {1-x} na_xfe_2as_2} $

Incommensurate magnetic states induced by ordering competition in $\mathrm{Ba_{1-x}Na_xFe_2As_2}$

论文作者

Wang, Jing

论文摘要

附近的量子临界值在$ \ mathrm {ba_ {1-x} na_xfe_2as_2} $下方的超导圆顶下方的某个磁相变。我们报告说,在磁性波动和超导波动之间的订购竞争能够哄骗不稳定(IC)磁性状态,以根据其自旋构型经历不同的命运。 $ C_2 $ -SMEMEMEMETRY IC磁条带带有垂直磁性螺旋的磁性条纹比其他$ C_2 $ - 符号对称磁性竞争对手占主导地位,并暗示着未知$ C_2 $ -Symmetry Magnity磁状态的潜在候选者。在$ c_4 $ - 平衡的IC磁性阶段中,IC电荷旋转密度波被证实是优越的,可以阐明电荷的显着交织和自由度的自由度。同时,凶猛的波动在临界温度的倾角以及伦敦穿透深度的引人入胜的行为旁边急剧下降了超流体密度。

Quantum criticality nearby a certain magnetic phase transition beneath the superconducting dome of $\mathrm{Ba_{1-x}Na_xFe_2As_2}$ is attentively studied by virtue of a phenomenological theory in conjunction with renormalization group approach. We report that ordering competition between magnetic and superconducting fluctuations is capable of coaxing incommensurate (IC) magnetic states to experience distinct fates depending upon their spin configurations. The $C_2$-symmetry IC magnetic stripe with perpendicular magnetic helix dominates over other $C_2$-symmetry magnetic competitors and hints at a potential candidate for the unknown $C_2$-symmetry magnetic state. Amongst $C_4$-symmetry IC magnetic phases, IC charge spin density wave is substantiated to be superior, shedding light on the significant intertwining of charge and spin degrees of freedom. Meanwhile, ferocious fluctuations render a sharp fall of superfluid density alongside dip of critical temperature as well as intriguing behavior of London penetration depth.

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