Structural Instability and Magnetism of Superconducting KCr${}_3$As${}_3$

Abstract

We find a lattice instability in the superconductor KCr${}_3$As${}_3$, corresponding to a distortion of the Cr metallic wires in the crystal structure. This distortion couples strongly to both the electronic and magnetic properties, in particular by making the electronic structure much more nearly one-dimensional, and by shifting the compound away from magnetism. We discuss the implications of these results in the context of the possibly unconventional superconductivity of this phase.

References in corpus (33)

• The challenge of unravelling magnetic properties in LaFeAsO
• Ferromagnetic spin fluctuation induced superconductivity in Sr_2RuO_4
• Superconductivity in quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$ with significant electron correlations
• Unconventional superconductivity in quasi-one-dimensional Rb${}_2$Cr${}_3$As${}_3$
• Superconductivity in quasi-one-dimensional Cs2Cr3As3 with large interchain distance
• Magnetic Exchange Interactions in BaMn2As2: A Case Study of the J1-J2-Jc Heisenberg Model
• Electronic structure and Magnetism in BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$
• Evidence for Strong Itinerant Spin Fluctuations in the Normal State of CeFeAsO(0.89)F(0.11) Iron-Oxypnictides
• NMR Investigation of the Quasi One-dimensional Superconductor K${}_2$Cr${}_3$As${}_3$
• Searching for triplet superconductivity in the Quasi-One-Dimensional K2Cr3As3
• Electronic structure of quasi-one-dimensional superconductor K${}_2$Cr${}_3$As${}_3$ from first-principles calculations
• Anisotropic $H_{c2}$, thermodynamic and transport measurements, and pressure dependence of $T_c$ in K${}_2$Cr${}_3$As${}_3$ single crystals
• Ion-exchange synthesis and superconductivity at 8.6 K of Na2Cr3As3 with quasi-one-dimensional crystal structure
• Superconductivity at 5 K in quasi-one-dimensional Cr-based KCr3As3 single crystals
• Ferromagnetic Spin Fluctuation and Unconventional Superconductivity in Rb${}_2$Cr${}_3$As${}_3$ revealed by ${}^{75}$As NMR and NQR
• Magnetism in Quasi-One-Dimensional A${}_2$Cr${}_3$As${}_3$ (A=K,Rb) superconductors
• Multiband one-dimensional electronic structure and spectroscopic signature of Tomonoga-Luttinger liquid behavior in K${}_2$Cr${}_3$As${}_3$
• Cluster spin-glass ground state in quasi-one-dimensional KCr${}_3$As${}_3$
• Formation of Molecular-Orbital Bands in a Twisted Hubbard Tube: Implications for Unconventional Superconductivity in K2Cr3As3
• Theory for superconductivity in alkali chromium arsenides A2Cr3As3 (A=K,Rb,Cs)
• Novel Itinerant Antiferromagnet TiAu
• Superconductivity at 10.4 K in a novel quasi-one-dimensional ternary molybdenum pnictide K2Mo3As3
• Superconductivity at 7.3 K in the 133-type Cr-based RbCr3As3 single crystals
• Nodal superconducting gap structure in the quasi-one-dimensional Cs${}_2$Cr${}_3$As${}_3$ investigated using $\mu$SR measurements
• Strong-coupling electron-phonon superconductivity in noncentrosymmetric quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$
• Tunable electronic anisotropy in single-crystal A2Cr3As3 (A = K, Rb) quasi-one-dimensional superconductors
• Coupling of structure to magnetic and superconducting orders in quasi-one-dimensional ${\text{K}}_2{\text{Cr}}_3{\text{As}}_3$
• Penetration depth measurements of K2Cr3As3 and Rb2Cr3As3
• Frustrated structural instability in superconducting quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$
• Reduced Dimensionality and Magnetic Frustration in KCr${}_3$As${}_3$
• Singlet $s^{\pm }$-wave pairing in quasi-one-dimensional ACr${}_3$As${}_3$ (A=K, Rb, Cs) superconductors
• Electronic structure and weak itinerant magnetism in metallic Y2Ni7
• Superconductivity in novel quasi-one-dimensional ternary molybdenum pnictides Rb2Mo3As3 and Cs2Mo3As3

Cited by in corpus (9)

• Charge density wave instability and pressure-induced superconductivity in bulk 1T-NbS2
• Quasi-one-dimensional system as a high-temperature superconductor
• Tuning from Frustrated Magnetism to Superconductivity in Quasi-One-Dimensional KCr${}_3$As${}_3$ Through Hydrogen Doping
• Lifshitz Transition and Nontrivial H-Doping Effect in Cr-based Superconductor KCr${}_3$As${}_3$H${}_x$
• Intra-chain collinear magnetism and inter-chain magnetic phases in Cr3As3-K-based materials
• K2Mo3As3 is a Multi-Gap Electron-Phonon Superconductor
• Gapless spin-excitations in the superconducting state of a quasi-one-dimensional spin-triplet superconductor
• The upper critical field and its anisotropy in RbCr${}_3$As${}_3$
• Topological $p_z$-wave nodal-line superconductivity with flat surface bands in the AH${}_x$Cr${}_3$As${}_3$ (A=Na, K, Rb, Cs) superconductors