结构因素在Cr1/3NbS2手性磁孤子晶格形成中的作用
Role of structural factors in formation of chiral magnetic soliton lattice in Cr1/3NbS2
摘要：
根据结构数据计算了Cr_（1/3）NbS_2层间化合物中近邻和长程近邻的磁相互作用的符号和强度。已经发现，左手自旋螺旋在Cr 1/3 NbS 2中形成于Cr 3+离子的三角形平面之间的强度主导的低温AFM相互作用，通过嵌入到彼此的三角形棱柱的侧面的两个晶体学上等效的对角线中的仅仅一个的平面，建立磁性Cr 3+离子的晶格。这些螺旋沿c轴取向，并在垂直于这些螺旋方向的平面中填充成二维三角形晶格，并以位移方式彼此叠置。上述AFM螺旋与较弱的螺旋间AFM相互作用的竞争可以促进长周期螺旋自旋结构的出现。我们可以假设，在这种情况下，Dzyaloshinskiii-Moriya相互作用的作用costists在最终的顺序和稳定的手征自旋螺旋到手征磁孤子晶格。本文研究了M_（1/3）NbX_2和M_（1/3）TaX_2（M = d元素; X = S和Se）嵌入化合物中孤子出现的可能性。由晶体结构引起的两个重要因素（主要的手性磁螺旋和它们与较弱的螺旋间相互作用的竞争不破坏系统的准一维特性）可以用于孤子的晶体化学搜索。
英文摘要：
The sign and strength of magnetic interactions not only between nearest neighbors, but also for longer-range neighbors in the Cr1/3NbS2 intercalation compound have been calculated on the basis of structural data. It has been found that left-handed spin helices in Cr1/3NbS2 are formed from strength-dominant at low temperatures AFM interactions between triangular planes of Cr3+ ions through the plane of just one of two crystallographically equivalent diagonals of side faces of embedded into each other trigonal prisms building up the crystal lattice of magnetic Cr3+ ions. These helices are oriented along the c axis and packed into two-dimensional triangular lattices in planes perpendicular to these helices directions and lay one upon each other with a displacement. The competition of the above AFM helices with weaker inter-helix AFM interactions could promote the emergence of a long-period helical spin structure. One can assume that in this case the role of Dzyaloshinskii-Moriya interaction cosists in final ordering and stabilization of chiral spin helices into a chiral magnetic soliton lattice. The possibility of emergence of solitons in M1/3NbX2 and M1/3TaX2 (M = d-elements; X = S and Se) intercalate compounds has been examined. Two important factors caused by the crystal structure (predominantnchiral magnetic helices and their competition with weaker inter-helix interactions not destructing the system quasi-one-dimensional character) can be used for the crystal chemistry search of solitons.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
