Dynamics in staggered molecular spin chains in high magnetic field

The ability to manipulate quantum states of matter is a goal of condensed matter science. Recent progress in molecular magnetism has shown the potential for gaining control over the structural building blocks of materials in order to engineer quantum magnetic properties. Our most recent work has concerned the chiral spin chain [Cu(pym)(H2O)4]SiF6.H2O (pym = pyrimidine) (1). The magnetic properties of this system most resemble those of a staggered spin chain, although the chiral structure of (1) appears to endow it with a unique field-induced excitation spectrum. In this project we propose to investigate the dynamic magnetic response of (1) in the high magnetic field region (1 < B < 5 T), comparing its excitation spectrum to that of the conventional staggered chain material [pym-Cu(NO3)2(H2O)2].

操控物质的量子态是凝聚态科学（condensed matter science）的核心研究目标。近年来分子磁学领域的研究进展表明，通过调控材料的结构构筑基元以定制量子磁性质具备可观潜力。本团队近期的研究工作聚焦于手性自旋链（chiral spin chain）[Cu(pym)(H₂O)₄]SiF₆·H₂O（其中pym代表嘧啶（pyrimidine），记为化合物1）。尽管该体系的手性结构赋予其独特的场致激发谱，但其磁性质与交错自旋链（staggered spin chain）体系高度相似。本项目拟对化合物1在1 < B < 5 T的高磁场区域内的动态磁响应展开研究，并将其激发谱与常规交错自旋链材料[pym-Cu(NO₃)₂(H₂O)₂]的激发谱进行对比分析。