We report magnetic and electrical properties for single crystals of NdMn$_6$Sn$_6$ SmMn$_6$Sn$_6$. They crystallize into a structure which has distorted, Mn-based kagome lattices, compared to the pristine lattices in heavy-rare-earth-bearing RMn$_6$Sn$_6$ compounds. are hightemperature ferromagnets R moment is parallel with Mn moment. observed large intrinsic anomalous Hall effect (AHE) that co...

$R$V${_6}$Sn${_6}$ ($R$ = Y, Gd - Tm, Lu) single crystals are synthesized by Sn-flux method and their physical properties characterized magnetization, resistivity, specific heat measurements. Powder X-ray diffraction patterns of all samples can be well indexed with the hexagonal HfFe$_6$Ge$_6$-type structure, where rare-earth atoms form layers vanadium Kagome layers. At high temperatures, magne...

$R$V${_6}$Sn${_6}$ ($R$ = Y, Gd - Tm, Lu) single crystals are synthesized by Sn-flux method and their physical properties characterized magnetization, resistivity, specific heat measurements. Powder X-ray diffraction patterns of all samples can be well indexed with the hexagonal HfFe$_6$Ge$_6$-type structure, where rare-earth atoms form layers vanadium Kagome layers. At high temperatures, magne...

The synthesis and characterization of vanadium-based kagome metals YV$_6$Sn$_6$ GdV$_6$Sn$_6$ are presented. X-ray diffraction, magnetization, magnetotransport, heat capacity measurements reveal an ideal network V-ions coordinated by Sn separated triangular lattice planes rare-earth ions. onset low-temperature, likely noncollinear, magnetic order Gd spins is detected in GdV$_6$Sn$_6$, while bot...

The synthesis and characterization of vanadium-based kagome metals YV$_6$Sn$_6$ GdV$_6$Sn$_6$ are presented. X-ray diffraction, magnetization, magnetotransport, heat capacity measurements reveal an ideal network V-ions coordinated by Sn separated triangular lattice planes rare-earth ions. onset low-temperature, likely noncollinear, magnetic order Gd spins is detected in GdV$_6$Sn$_6$, while bot...

The two-dimensional (2D) van der Waals ferromagnetic semiconductors, such as CrI$_3$ and Cr$_2$Ge$_2$Te$_6$, the 2D metals, Fe$_3$GeTe$_2$ MnSe$_2$, have been obtained in recent experiments attracted a lot of attentions. superexchange interaction has suggested to dominate magnetic interactions these systems. In usual theoretical studies, expression Heisenberg models were fixed by hand due exper...

The mechanisms for photodissociation of methyl halides (CH$_3$X, X= Cl, Br, I) have been studied these molecules when adsorbed on thin films C$_6$H$_6$ or C$_6$F$_6$ copper single crystals, using time-of-flight spectroscopy with 248nm and 193nm light. For CH$_3$Cl CH$_3$Br monolayers C$_6$H$_6$, two pathways can be identified: neutral similar to the gas-phase, a dissociative electron attachment...