2015/01/31 by Xianxin Wu, Xian-Xin Wu, Cong-Cong Le +5 · 64 citations
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Cuprate #Ground state #Iron-based superconductors research #Lattice (music) #Magnetism #Organic and Molecular Conductors Research #Phase diagram #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1088/0256-307x/32/5/057401
published in Chinese Physics Letters 32(5), 057401 (Institute of Physics) · published version
arxiv created 2015/04/21 · arxiv updated 2015/04/22 · openalex publication_date 2015/05/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
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 the 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.