We quantify the instability towards the formation of multipolar states in coupled spin-1/2 chain systems with a frustrating J1-J2 exchange, in parameter regimes that are of directly relevance to edge-shared cuprate spin-chain compounds. Three representative types of inter-chain coupling and the presence of uniaxial exchange anisotropy are considered. The magnetic phase diagrams are determined by Density Matrix Renormalization Group calculations and completed by exact analytic results for the nematic and dipolar phases. We establish that the residual couplings strongly affect the pitch of spiral states and their instability to multipolar phases. Our theoretical results bring to the fore novel candidate materials close to quantum nematic/triatic ordering.
Persistent quantum vibronic dynamics in a $5d^1$ double perovskite oxide
Chiba University（千叶大学）；Agency for Science Technology and Research (A*STAR)（科学技术研究局）；Nagoya University（名古屋大学）；Paul Scherrer Institute（保罗谢勒研究所）；National Institutes for Quantum Science and Technology（量子科学技术研究机构）
Designing Quantum Matter in Pyrochlore Iridates: A Perspective on Recent Thin-Film Advances
Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所）；Department of Physics and Astronomy, Rutgers University（罗格斯大学）；School of Physics and Astronomy, University of Minnesota（明尼苏达大学）；Department of Chemical Engineering and Materials Science, University of Minnesota（明尼苏达大学）；School of Physical Sciences, University of Chinese Academy of Sciences（中国科学院大学）
