Pressure effects on the physical properties of Kagome Cu$_{\mathrm{\mathbf{3}}}$\textbf{Bi(SeO}$_{\mathrm{\mathbf{3}}}$\textbf{)}$_{\mathrm{\mathbf{2}}}$\textbf{O}$_{\mathrm{\mathbf{2}}}$\textbf{Cl metamagnet}

The effects of pressure on the structural and magnetic properties have been studied in Kagome Cu$_{\mathrm{3}}$Bi(Se$_{\mathrm{1-x}}$Te$_{\mathrm{x}}$O$_{\mathrm{3}})_{\mathrm{2}}$O$_{\mathrm{2}}$Cl polycrystalline samples. The initial crystal structure $P_{mmn}$ is gradually converted to $P_{cmn}$ space group when x $\ge $ 0.6, which could be determined by synchrotron X-ray diffraction, Raman spectroscopy, and magnetization measurements. The antiferromagnetic transition temperature ($T_{N})$ and the critical field ($H_{C})$ of metamagnetic spin-flip transition increase, but the value of saturation magnetization ($M_{S})$ decreases with Te doping concentration. Under external pressure, the $T_{N}$ and $M_{S}$ increase, while the $H_{C}$ reduces. These anisotropic pressure results could be explained by the modulation of competition between ferromagnetic intralayer and antiferromagnetic interlayer interactions. The route to control the metamagnetic spin-flip transition by anisotropic pressure effects might be helpful to understand the mechanism of field- induced multiferroic Cu$_{\mathrm{3}}$Bi(SeO$_{\mathrm{3}})_{\mathrm{2}}$O$_{\mathrm{2}}$Cl