论文标题
几何沮丧的自旋玻璃（Fe1-PGAP）2Tio5
The Geometrically Frustrated Spin Glass (Fe1-pGap)2TiO5
论文作者
论文摘要
伪根布鲁克人系统中的自旋玻璃过渡的异常各向异性fe $ _2 $ _2 $ tio $ _5 $被解释为磁性簇之间的诱导的，类似于范德华的相互作用。在这里，我们提出了用非磁性GA稀释的Fe2Tio5（Fe $ _ {1-P} $ ga $ _p $）$ _ 2 $ _ 2 $ tio $ _5 $，用于障碍参数p = 0、0.11和0.42和0.42和弹性的p = 0.20。在增加p时观察到t {_g}的均匀抑制，以及$χ（t_g）$的值随着t $ _g $减少的增加，即$dχ（t_g）/dt_g <0 $。我们还观察到C（t）$ \ propto $ t $^2 $在低温限制中。观察到的行为位置（fe $ _ {1-p} $ ga $ _p $）$ _ 2 $ tio $ _5 $在强烈的几何沮丧的旋转玻璃的类别中。
The unusual anisotropy of the spin glass transition in the pseudobrookite system Fe$_2$TiO$_5$ has been interpreted as arising from an induced, van der Waals-like, interaction among magnetic clusters. Here we present susceptibility ($χ$) and specific heat data (C) for Fe2TiO5 diluted with non-magnetic Ga, (Fe$_{1-p}$Ga$_p$)$_2$TiO$_5$, for disorder parameter p = 0, 0.11, and 0.42, and elastic neutron scattering data for p = 0.20. A uniform suppression of T{_g} is observed upon increasing p, along with a value of $χ(T_g)$ that increases as T$_g$ decreases, i.e. $dχ(T_g)/dT_g< 0$. We also observe C(T) $\propto$ T$^2$ in the low temperature limit. The observed behavior places (Fe$_{1-p}$Ga$_p$)$_2$TiO$_5$ in the category of a strongly geometrically frustrated spin glass.
