similar behaviors were previously reported in Pt/YIG hybrids [@Miao2014; @Huang2012]. We also plot the R$_\textup{EHR}$ of PLL hybrids with different Pt thickness at $T$ = 2 K in Fig. 5(b). As the Pt thickness increased, the R$_\textup{EHR}$ dramatically decreases, and becomes almost negligible for t$_\textup{Pt} >$ 10 nm. For example, for Pt(15 nm)/LCO/STO hybrid, the R$_\textup{EHR}$ is about 0.46 m$\Omega$ at 2 K, which is two orders of magnitude less than PLS2 hybrid. The thickness dependence of the R$_\textup{EHR}$ are summarized in Fig. 6(b). The R$_\textup{EHR}$ scales as 1/t$_\textup{Pt}$ \[see inset of Fig. 6(b)\], indicating interfacial contributions dominate the R$_\textup{EHR}$. Similar behaviors were also reported previously in Pd/YIG hybrid [@Lin2013].

![(Color online) Fitting parameters of equations discussed in the context. Different symbols represent different hybrids: PLL (square), PLLA (triangle), and PLS (circle). The dashed lines represent linear fits to the magnetic field. The solid symbols represent the data at 100 K, while the open ones represent the 10 K data.[]{data-label="fig8"}](Fig8.eps){width="3.2in"}

Next, we carried out the measurements of angular dependence of R$_\textup{xy}$ at temperatures of 100 K and 10 K. For clarity, only the data of PLL2 are presented, with the PLLA2 and PLS2 showing similar behaviors. When the magnetization is 