In order to study the topological features and the microscopic origin of the transition, we have constructed a tight-binding (TB) Hamiltonian as a function of uniaxial pressure. It comprises thesandporbitals of the two Sn atoms in the unit cell and thedorbitals of the Ba atom (thirteen orbi...
6.The method of claim 1 wherein the ion beam energy is from about 5 to about 50 electron volts. 7.The method of claim 6 wherein the ion beam energy from about 5 to about 10 electron volts. 8.The method of claim 1 wherein the electrospray flow rate is from about 0.025 μL/min ...
whichhasalargesurfaceareathatcanfacilitateafastrateofsurfacereactions,isawidelyusedwide–band-gapsemiconductorphotocatalystforavarietyofsolar-drivencleanenergyandenvironmentaltech-nologies(1–4).InordertoincreasethelimitedopticalabsorptionofTiO2undersunlight,therehavebeenpersistenteffortstovarythechemicalcompositionofTiO2...