Magnetism in Quasi-One-Dimensional A${}_2$Cr${}_3$As${}_3$ (A=K,Rb) superconductors

Abstract

We predict that the recently discovered quasi-one dimensional superconductors, A${}_2$Cr${}_3$As${}_3$(A=K,Rb), possess strong frustrated magnetic fluctuations and are nearby a novel in-out co-planar magnetic ground state. The frustrated magnetism is very sensitive to c-axis lattice constant and can thus be suppressed by increasing pressure. Our results qualitatively explain strong non-Fermi liquid behaviors observed in the normal state of the superconductors as the intertwining between the magnetism and superconductivity can create a large quantum critical region in quasi-one dimensional systems and also suggest that the materials share similar phase diagrams and superconducting mechanism with other unconventional superconductors, such as cuprates and iron-based superconductors.

published version

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Cited by in corpus (24)

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• Cluster spin-glass ground state in quasi-one-dimensional KCr${}_3$As${}_3$
• NMR and NQR studies on transition-metal arsenide superconductors LaRu2As2, KCa2Fe4As4F2, and A2Cr3As3
• Altermagnetic Ground State in Distorted Kagome Metal CsCr${}_3$Sb${}_5$
• Peculiar properties of Cr${}_3$As${}_3$-chain-based superconductors
• Coupling of structure to magnetic and superconducting orders in quasi-one-dimensional ${\text{K}}_2{\text{Cr}}_3{\text{As}}_3$
• Coexistence of nontrivial topological properties and strong ferromagnetic fluctuations in $A_2$Cr${}_3$As${}_3$ ($A$=Na, K, Rb and Cs)
• Structural Instability and Magnetism of Superconducting KCr${}_3$As${}_3$
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• Tuning interchain ferromagnetic instability in A2Cr3As3 ternary arsenides by chemical pressure and uniaxial strain
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• Electronic and dynamical properties of cobalt monogermanide CoGe phases under pressure
• Lifshitz transition enhanced triplet $p_z$-wave superconductivity in hydrogen doped KCr${}_3$As${}_3$
• Reemergence of superconductivity in pressurized quasi-one-dimensional superconductor K2Mo3As3
• Interplay of Zeeman field, Rashba spin-orbit interaction, and superconductivity: Transition temperature and quasiparticle excitation
• Magnetic instabilities in quasi-one-dimensional Cr-based material
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• Hydrogen Doping Induced $p_x\pm i{p}_y$ Triplet Superconductivity in Quasi-One-Dimensional K${}_2$Cr${}_3$As${}_3$