Study of Spin Gap System Using High Energy Neutron

提出了TiOBr一维磁关联占优势的自旋-Peierls相变，并伴随着TiOBr2g&gt；在这个研究项目中，我们进行了非弹性中子散射实验，以研究涉及自旋能隙的磁动力学。在LANCSE的实验中，观测到了一个10 meV的磁信号，其动量依赖关系可以用一维结构因子很好地解释。在J-PARC更精确的测量中，我们成功地在6 meV的较低能量下观测到了一个新的信号。

It is proposed that spin-Peierls transition, where 1-dimensional(1D) magnetic correlation is only dominant, takes place accompanied by an orbital ordering of Ti t_<2g> in TiOBr. In this research program, we performed inelastic neutron scattering experiments in order to investigate the magnetic dynamics involving the spin gap. In the experiment at LANCSE, it is observed a magnetic signal at 10 meV, whose momentum dependence is well explained by 1D structure factor. In more precice measurement at J-PARC, we successfully observed a new signal at lower energy of 6 meV.