论文标题

强烈耦合电荷,轨道和旋转顺序$ _ {3} $

Strongly coupled charge, orbital and spin order in TbTe$_{3}$

论文作者

Chillal, S., Schierle, E., Weschke, E., Yokaichiya, F., Hoffmann, J. -U., Volkova, O. S., Vasiliev, A. N., Sinchenko, A. A., Lejay, P., Hadj-Azzem, A., Monceau, P., Lake, B.

论文摘要

我们报告了一个基态,其磁性和电荷密度波顺序通过分层化合物\ tbt中的轨道顺序介导。除了相称的抗铁磁(AFM)和电荷密度波(CDW)顺序外,还观察到新的磁峰,其传播载体等于AFM和CDW传播载体的总和,揭示了复杂且高度纠缠的关系。鉴于磁性和电荷顺序位于晶体结构的不同层中,这一点尤其有趣,其中TB $^{3+} $离子的高度局部磁矩在TB-TE堆栈中净化,而电荷顺序是由相邻Te-Te层的传导电子形成的。我们的结果基于中子衍射和谐振X射线散射,表明电荷和磁性子系统通过TB $^{3+} $ ions的轨道顺序相互影响。

We report a ground state with strongly coupled magnetic and charge density wave orders mediated via orbital ordering in the layered compound \tbt. In addition to the commensurate antiferromagnetic (AFM) and charge density wave (CDW) orders, new magnetic peaks are observed whose propagation vector equals the sum of the AFM and CDW propagation vectors, revealing an intricate and highly entwined relationship. This is especially interesting given that the magnetic and charge orders lie in different layers of the crystal structure where the highly localized magnetic moments of the Tb$^{3+}$ ions are netted in the Tb-Te stacks, while the charge order is formed by the conduction electrons of the adjacent Te-Te layers. Our results, based on neutron diffraction and resonant x-ray scattering reveal that the charge and magnetic subsystems mutually influence each other via the orbital ordering of Tb$^{3+}$ ions.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源