Pseudo potentials
 
 
 TM below the symbol means that the pseudo potentials were generated
 by the TM schemes.
 
 
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  Pseudo atomic orbitals
 
 
 The number below the symbol means a cutoff radius (a.u.) of the confinement
 potential. These file includes five radial parts for each angular 
 momentum quantum number l (=0,1,2).
 
 
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   Convergence properties with respect to basis sets
  
 Figures (a) and (b) show the convergence properties of the total energy
 and the equilibrium bond length for a helium molecule, which are
 calculated using the basis sets in the database, respectively. 
 The energy cutoff of 262 (Ryd) was used in the numerical integrations
 and the solution of Poisson's equations. The pseudo potential used
 in these calculations was He_TM.vps which is stored in the vps 
 database. The local density approximation (LDA) was used for
 the exchange-correlation interaction.