Reduced Dimensionality and Magnetic Frustration in KCr${}_3$As${}_3$

Abstract

We study the electronic and magnetic structures of the newly-discovered compound KCr${}_3$As${}_3$. The non-magnetic state has five Fermi surface sheets involving respectively three quasi-one-dimensional and two three-dimensional energy bands. However, the ground state is magnetic, exhibiting a novel interlayer antiferromagnetic order where the basic block-spin state of a unit Cr triangle retains a high spin magnitude. Moreover, its Fermi surface involves three one-dimensional sheets only, providing evidence for local moments in this compound due to the reduced dimensionality. By fitting a twisted spin tube model the magnetic frustrations caused by local moments are found to be relaxed, leading to gapless spin excitations. A frustration-induced transition to the disordered low block-spin state is expected upon increasing the intralayer exchange interaction.

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• Orbital-Selective Mott transition out of band degeneracy lifting
• Superconductivity in the vicinity of antiferromagnetic order in CrAs
• 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
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• Electronic structure of quasi-one-dimensional superconductor K${}_2$Cr${}_3$As${}_3$ from first-principles calculations
• Triplet $p_z$-wave pairing in quasi one dimensional A${}_2$Cr${}_3$As${}_3$ superconductors
• Magnetic characterization of the frustrated three-leg ladder compound [(CuCl2tachH)3Cl]Cl2
• Single Mott Transition in Multi-Orbital Hubbard Model
• Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2
• Anisotropic $H_{c2}$, thermodynamic and transport measurements, and pressure dependence of $T_c$ in K${}_2$Cr${}_3$As${}_3$ single crystals
• Exotic magnetic order in the orbital-selective Mott regime of multiorbital systems
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• Optical conductivity and Raman scattering of iron superconductors
• Quantum spin nanotubes -- frustration, competing orders and criticalities
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• Interacting electrons in quasi-one-dimensional organic superconductors
• Reversible tuning of superconductivity in pressurized qausi-one-dimensional A2Cr3As3 (A=K and Rb)

Cited by in corpus (14)

• Superconductivity at 5 K in quasi-one-dimensional Cr-based KCr3As3 single crystals
• Nodal superconducting gap structure in the quasi-one-dimensional Cs${}_2$Cr${}_3$As${}_3$ investigated using $\mu$SR measurements
• Synthesis, crystal structure and physical properties of quasi-one-dimensional ACr${}_3$As${}_3$ (A = Rb, Cs)
• Peculiar properties of Cr${}_3$As${}_3$-chain-based superconductors
• Coupling of structure to magnetic and superconducting orders in quasi-one-dimensional ${\text{K}}_2{\text{Cr}}_3{\text{As}}_3$
• Frustrated structural instability in superconducting quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$
• Lifshitz Transition and Nontrivial H-Doping Effect in Cr-based Superconductor KCr${}_3$As${}_3$H${}_x$
• Tuning from Frustrated Magnetism to Superconductivity in Quasi-One-Dimensional KCr${}_3$As${}_3$ Through Hydrogen Doping
• Structural Instability and Magnetism of Superconducting KCr${}_3$As${}_3$
• Singlet $s^{\pm }$-wave pairing in quasi-one-dimensional ACr${}_3$As${}_3$ (A=K, Rb, Cs) superconductors
• Gapless spin-excitations in the superconducting state of a quasi-one-dimensional spin-triplet superconductor
• Multiband superconductivity and possible nodal gap in RbCr${}_3$As${}_3$ revealed by Andreev reflection and single-particle tunneling measurements
• Tuning interchain ferromagnetic instability in A2Cr3As3 ternary arsenides by chemical pressure and uniaxial strain
• Lifshitz transition enhanced triplet $p_z$-wave superconductivity in hydrogen doped KCr${}_3$As${}_3$