Question about basis set of Ce
stclair
leili... at gmail.com
Sun Mar 1 19:26:17 UTC 2015
Dear CP2K Users and Developers,
I have no much experience about the basis set format. Below is the
basis set I found from JPCC paper (JPCC, 2013, 117, 23082−23089). I applied
it into simulation of CeO2 with the setting shown below but I cannot
reproduce the electron configuration reported in the paper:
cannot correctly localize the extra electron. I think it is resulted from
the geometry deference: the two oxygen atoms in the structure from the JPCC
paper shrinkage more toward oxygen vacancy (see attached pictures). I am
not sure if it is due to the wrong setting of basis set. The JPCC paper
added uncontracted Gaussian f functions to model 4f states.I add these
gaussian f functions at the end of section BASIS ( like what I did below).
Is that right way to use it or there is other keywords need to be used to
handle these uncontracted Gaussian f functions?
By the way, I am working on using &BS and &CORE_CORRECTION to fix the
problem, but I think it will be better to confirm I applied the basis set
correctly since I am not quite familiar about this part.
Thanks great in advance!
=======================
&KIND Ce
&BASIS
# Ce Ce_Basis_Set
5
2 0 2 6 3 3 2
4.0260293900 -3.165072E-02 -9.416785E-02 1.690049E-02
-1.128716E-03 4.943880E-03 -2.491187E-02 1.524771E-03 2.412545E-03
1.7233502300 2.716941E-01 7.138218E-01 3.443888E-02 9.796519E-02
-2.910473E-01 -2.920519E-02 -6.109128E-02 1.693880E-02
0.8016053400 -1.745729E-01 -4.029126E-01 7.964791E-01
-1.776708E-01 4.625818E-01 -1.079982E-01 1.783731E-01 -6.023538E-02
0.3629432200 -7.093594E-01 -9.938547E-01 -3.218722E+00
-2.900076E-01 6.285402E-01 1.537309E+00 4.091688E-01 -2.606908E-01
0.1421879300 1.823870E-01 -5.410839E-02 3.866696E+00 5.652890E-02
1.684357E-01 -2.301581E+00 4.887977E-01 -3.557663E-01
0.0441531200 1.069760E+00 2.879189E-02 -1.761359E+00 1.007066E+00
-7.698878E-03 1.136371E+00 1.754022E-01 1.095603E+00
# below is the uncontracted Gaussian f functions
6 3 3 1 1
6.9560000 1.0000000
7 3 3 1 1
2.7930000 1.0000000
8 3 3 1 1
1.0680000 1.0000000
9 3 3 1 1
0.3499000 1.0000000
&END BASIS
&POTENTIAL
# Ce GTH-PBE
4 6 0 2
0.53900468 2 18.85114190 -0.77960224
4
0.49808146 2 1.19529290 0.62204575
-1.62871685
0.47069322 2 1.18088300 0.55487102
-1.53066452
0.65606409 1 0.07990999
0.30705426 1 -17.32458585
&END POTENTIAL
&DFT_PLUS_U .TRUE.
L 3
U_MINUS_J [eV] 7.00E+00
&END DFT_PLUS_U
&END KIND
===================
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