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天地逍遥

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[求助] Inquiry about transiesta

Dear friends,
   I have observed some odd behaviors of TranSiesta. The attach plot is
the plot of the planar charge density of along the z-direction
of Graphene-BN-Graphene  stacks. The stack is in the z-direction.
The basis is double-zeta types for both grapheme and BN.

   As you can see, there is no charge at all in the BN layers, which is odd.
I observed the same behaviors in other systems when using BasisSizes=DZP.
However, when I changed to BasisSizes=SZP, the charge density reappeared.

   If you could kindly provide some insights into this issue, I would be greatly appreciated.
The basis block is also below. I have optimized the basis using the simplex algorithm.
The resultant lattice parameters look fine.

Sincerely,
Yuranan


PAO.BasisType    split
%block PAO.Basis
C_GGA     3
n=2    0    2
  6.001   3.6165
  1.000   1.000
n=2    1    2   P 1
  4.7486   2.8872
  1.000   1.000
n=3    2    1   E 16.84  0.05
  4.1597
  1.000
N_GGA                 2
n=2   0   2
  5.0100   3.1046
  1.000      1.000
n=2   1   2 P   1
  4.2815    3.3488
  1.000      1.000
B_GGA                 2
n=2   0   2
  4.8638     3.8413
  1.000      1.000
n=2   1   2 P   1
  5.1831    2.7078
  1.000      1.000
%endblock PAO.Basis
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