论文标题
URU $ _ {2-X} $ re $ _x $ si $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _2 $ _ 2 $ _ $ _ $ _的未磁激发
Ungapped magnetic excitations beyond Hidden Order in URu$_{2-x}$Re$_x$Si$_2$
论文作者
论文摘要
我们使用非弹性中子散射测量结果表明，由隐藏订单过渡引起的uru $ _2 $ _2 $ si $ _2 $的磁激发中的能量差距是由Re替换而封闭的。在不再观察到与隐藏顺序相关的特定热异常的组合物中，磁激发仍未覆盖，这意味着与隐藏顺序相关的熵主要与磁盖相关。此外，铁磁顺序的发作不会散布激发，这反映了替代不会显着影响近代晶格杂交的事实。
We use inelastic neutron scattering measurements to show that the energy gap in the magnetic excitations of URu$_2$Si$_2$, induced by the Hidden Order transition, is closed by Re substitution. The magnetic excitations remain ungapped in compositions where the specific heat anomaly associated with Hidden Order is no longer observed, which means that the entropy associated with Hidden Order is tied mostly to the magnetic gapping. Further, the onset of ferromagnetic order does not gap the excitations, reflecting the fact that Re substitution does not dramatically affect the Kondo lattice hybridization.
