[CP2K-user] [CP2K:16401] band structure inconsistent with pdos results
Yao zhang
yao.zhhang at gmail.com
Wed Dec 22 02:24:10 UTC 2021
Dear all,
I am trying using CP2K-8.2 to calculate the band structure and pdos of
some crystal with the hybrid fuctional HSE06. After I get the result, I
find the band structure and pdos curve don't match. As shown in the graph,
in pdos a peak appears in the middle of bandgap. Nothing change between the
two calculation except the &DFT&Print section.
[image: v.png]
I am new to both CP2K and DFT calculation. I wonder is this a common
situation or there is something wrong? Which result is more relible, band
structure or the pdos?
The .inp file is attached below. Thank you a lot.
&GLOBAL
PRINT_LEVEL LOW
PROJECT_NAME v
RUN_TYPE energy
&END GLOBAL
&FORCE_EVAL
METHOD QS
&DFT
BASIS_SET_FILE_NAME BASIS_MOLOPT
POTENTIAL_FILE_NAME POTENTIAL
BASIS_SET_FILE_NAME BASIS_ADMM_MOLOPT
&SCF
MAX_SCF 128
EPS_SCF 3.0000000000000001E-06
ADDED_MOS 100
&DIAGONALIZATION T
ALGORITHM STANDARD
&END DIAGONALIZATION
&SMEAR T
METHOD FERMI_DIRAC
ELECTRONIC_TEMPERATURE 3.0000000000000000E+02
&END SMEAR
&MIXING T
METHOD BROYDEN_MIXING
ALPHA 4.0000000000000002E-01
NBUFFER 8
&END MIXING
&END SCF
&QS
EPS_DEFAULT 1.0000000000000000E-10
&END QS
&MGRID
CUTOFF 4.0000000000000000E+02
REL_CUTOFF 5.5000000000000000E+01
&END MGRID
&XC
DENSITY_CUTOFF 1.0000000000000000E-10
GRADIENT_CUTOFF 1.0000000000000000E-10
TAU_CUTOFF 1.0000000000000000E-10
&XC_FUNCTIONAL NO_SHORTCUT
&HYB_GGA_XC_HSE06
&END
&END XC_FUNCTIONAL
#&VDW_POTENTIAL
#POTENTIAL_TYPE PAIR_POTENTIAL
#&PAIR_POTENTIAL
#TYPE DFTD3
#PARAMETER_FILE_NAME dftd3.dat
#REFERENCE_FUNCTIONAL PBE
#&END PAIR_POTENTIAL
#&END VDW_POTENTIAL
&END XC
&POISSON
POISSON_SOLVER PERIODIC
PERIODIC XYZ
&END POISSON
&print
# &mo_cubes
#nhomo 2
#&end
&PDOS
NLUMO -1
COMPONENTS
&END
&dos
filename v.dos
&end
#&band_structure
#FILE_NAME v-hse.bs
#&KPOINT_SET
#UNITS B_vector
#SPECIAL_POINT 0 0 0 #gamma
#SPECIAL_POINT 0 0 0.5 #z
#SPECIAL_POINT 0 0.5 0.5 #T
#special_point 0 0.5 0 #Y
#special_point 0.5 0.5 0 #S
#SPECIAL_POINT 0.5 0 0 #X
#special_point 0.5 0 0.5 #U
#special_point 0.5 0.5 0.5 #R
#special_point 0 0 0 #gamaa
#NPOINTS 60
#&END
#&end
&End print
&END DFT
&SUBSYS
&CELL
A 1.9708200000000001E+01 0.0000000000000000E+00
0.0000000000000000E+00
B 0.0000000000000000E+00 8.0732999999999997E+00
0.0000000000000000E+00
C 0.0000000000000000E+00 0.0000000000000000E+00
9.9544999999999995E+00
PERIODIC XYZ
MULTIPLE_UNIT_CELL 1 1 1
&END CELL
&COORD
#coord omited
&END COORD
&KIND Pb
BASIS_SET DZVP-MOLOPT-SR-GTH
BASIS_SET aux_fit cFIT9
ELEMENT Pb
POTENTIAL GTH-PBE
&POTENTIAL
2 2
0.6175000000000000E+00 1 0.4672384280000000E+01
3
0.6223588100000000E+00 3 0.8799176800000000E+00 0.2081147840000000E+01
-0.1431257100000000E+01
-0.5014690160000000E+01 0.3695489940000000E+01
-0.2933204210000000E+01
0.8120020200000000E+00 2 0.1534567900000000E+00 0.4788978500000000E+00
-0.5666395800000000E+00
0.1025015250000000E+01 1 0.3017020600000000E+00
&END POTENTIAL
&END KIND
&KIND C
BASIS_SET DZVP-MOLOPT-SR-GTH
ELEMENT C
POTENTIAL GTH-PBE
&POTENTIAL
2 2
0.3384712400000000E+00 2 -0.8803673979999999E+01 0.1339210850000000E+01
2
0.3025757500000000E+00 1 0.9622486650000001E+01
0.2915069400000000E+00 0
&END POTENTIAL
&END KIND
&KIND H
BASIS_SET DZVP-MOLOPT-SR-GTH
ELEMENT H
POTENTIAL GTH-PBE
&POTENTIAL
1
0.2000000000000000E+00 2 -0.4178900440000000E+01 0.7244633100000000E+00
0
&END POTENTIAL
&END KIND
&KIND I
BASIS_SET DZVP-MOLOPT-SR-GTH
BASIS_SET aux_fit cFIT9
ELEMENT I
POTENTIAL GTH-PBE
&POTENTIAL
2 5
0.5600000000000001E+00 1 0.8207101570000001E+01
3
0.5319281300000001E+00 3 0.2308145810000000E+01 0.1003909330000000E+01
-0.9591560600000000E+00
-0.2856108820000000E+01 0.2476530300000000E+01
-0.1965684980000000E+01
0.5891824400000000E+00 2 0.9064821900000000E+00 0.4250706000000000E+00
-0.5029503200000000E+00
0.7397214700000000E+00 1 0.4791945800000000E+00
&END POTENTIAL
&END KIND
&KIND N
BASIS_SET DZVP-MOLOPT-SR-GTH
ELEMENT N
POTENTIAL GTH-PBE
&POTENTIAL
2 3
0.2837905100000000E+00 2 -0.1241522559000000E+02 0.1868095920000000E+01
2
0.2554050000000000E+00 1 0.1363026257000000E+02
0.2454945300000000E+00 0
&END POTENTIAL
&END KIND
&TOPOLOGY
NUMBER_OF_ATOMS 84
MULTIPLE_UNIT_CELL 1 1 1
&END TOPOLOGY
&END SUBSYS
&END FORCE_EVAL
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