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cuiwen0314

Òø³æ (СÓÐÃûÆø)

[ÇóÖú] VASP ¼ÆËãCeO2ÓÃDFT+U·½·¨µÄÊäÈëÈçºÎÉèÖÃ

ÎÒÔÚÖØ¸´Ò»ÆªÎÄÏ×£¬ÊÇÓÃvasp¼ÆËãÓйØCeO2Îü¸½Ð¡·Ö×ÓµÄÑо¿£¬×ܵĵç×Ӻ͵ç×ÓÃܶȵļÆËãÊÇʹÓÃDFT+U·½·¨£¬ÆäÖÐCeµÄU=4.5eV£¬·½·¨ÊÇGGA=PE£¬½Ø¶ÏÄÜΪ415eV£¬ÎÒÔÚ¼ÆËã¾§ÃæÊ±µÄÊäÈëΪ
SYSTEM = GeO2_cell
ISTART=0
ICHARG=2
#ISPIN=2
ENCUT=415
PREC=Accurate
LREAL=Auto;
ISMEAR=0;
SIGMA=0.05;
NELMIN=8;
EDIFF=1E-4;
EDIFFG=-0.01;
MAXMIX=80;
GGA=PE;
ISIF=2;      
NSW=200;     
IBRION=2;
LPLANE = .TRUE.
NCORE=4
LSCALU= .FALSE.
NSIM=4
NPAR=8
LDAU=.TRUE.
LDAL=2 2
LDAUU=0 2
LDAUJ=0 0
LMAXMIX=4
LWAVE=.FALSE.
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emilyoyang

ľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
cuiwen0314: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2013-04-13 15:31:50
cuiwen0314: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2013-04-13 15:39:20
there are some problems on the DFT+U settings, U may use these setting
LDAU        = .FALSE.
LDAUTYPE        = 2
LDAUL= 3 -1
LDAUU= 4.5 0
LDAUJ= 0 0
LASPH = .TRUE.
LMAXMIX = 6
Moreover, U should double check your NCORE and NPAR  tags in VASP maunal, these two tags have connections with each other, U shall make sure the specific meaning of ur settings in ur INCAR
2Â¥2013-04-13 12:17:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cuiwen0314

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by emilyoyang at 2013-04-13 12:17:17
there are some problems on the DFT+U settings, U may use these setting
LDAU        = .FALSE.
LDAUTYPE        = 2
LDAUL= 3 -1
LDAUU= 4.5 0
LDAUJ= 0 0
LASPH = .TRUE.
LMAXMIX = 6
Moreover, U should double che ...

¸ÐлÄúµÄ»Ø¸´£¡ÓÐÒ»µãÎÒ²»Ã÷°×µÄÊÇÈç¹ûU²»¸ø¶¨µÄ»°£¬ÄÇLDAUL=
LDAUU=
LDAUJ=
LMAXMIX =
Õ⼸¸öÁ¿ÊÇÈçºÎÉ趨µÄÄØ£¬ÎÒ¿´ËµÃ÷Êé
LDAUU=U1 U2   ... specifies the effective on-site Coulomb interaction parameters.

LDAUJ=J1 J2   ... specifies the effective on-site Exchange interaction parameters.

ÄÇôU1£¬U2£¬J1£¬J2ÈçºÎµÃµ½£¿
LMAXMIX to 4 (d elements) and 6 (f elements£© ÔÚCeO2ÌåϵÖй涨µÄÊǽ«Ce£¨4f£¬5s£¬5p£¬5d£¬6s£©×÷Ϊ¼Ûµç×Ó´¦ÀíµÄ£¬ÄÇÊDz»ÊǾÍÊÇ¿´×îÄÚ²ãµÄ¼Ûµç×ÓÊÇdµç×Ó»¹ÊÇfµç×Ó£¬¶ø¼ÓÒÔÑ¡ÔñµÄ£¿ÄÇÈç¹ûÊÇSµç×ÓÄØ£¿Ð»Ð»À²
3Â¥2013-04-13 15:30:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wuli8

ÈÙÓþ°æÖ÷ (ÖªÃû×÷¼Ò)

¡­¡­¡­¡­

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

ÒýÓûØÌû:
2Â¥: Originally posted by emilyoyang at 2013-04-13 12:17:17
there are some problems on the DFT+U settings, U may use these setting
LDAU        = .FALSE.
LDAUTYPE        = 2
LDAUL= 3 -1
LDAUU= 4.5 0
LDAUJ= 0 0
LASPH = .TRUE.
LMAXMIX = 6
Moreover, U should double che ...

LDAU        = .FALSE.²»¶Ô

Setting LDAU=.TRUE. in the INCAR file switches on the L(S)DA+U.
¡­¡­¡­¡­
4Â¥2013-04-13 21:54:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cuiwen0314

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by wuli8 at 2013-04-13 21:54:35
LDAU        = .FALSE.²»¶Ô

Setting LDAU=.TRUE. in the INCAR file switches on the L(S)DA+U....

ллÄúµÄ½âÊÍ£¡
ÄÇÄúÄܸøÎÒ½â´ðÏÂÃæÕâ¸öÎÊÌâÂð£¿
¸ÐлÄúµÄ»Ø¸´£¡ÓÐÒ»µãÎÒ²»Ã÷°×µÄÊÇÈç¹ûU²»¸ø¶¨µÄ»°£¬ÄÇLDAUL=
LDAUU=
LDAUJ=
LMAXMIX =
Õ⼸¸öÁ¿ÊÇÈçºÎÉ趨µÄÄØ£¬ÎÒ¿´ËµÃ÷Êé
LDAUU=U1 U2   ... specifies the effective on-site Coulomb interaction parameters.

LDAUJ=J1 J2   ... specifies the effective on-site Exchange interaction parameters.

ÄÇôU1£¬U2£¬J1£¬J2ÈçºÎµÃµ½£¿
LMAXMIX to 4 (d elements) and 6 (f elements£© ÔÚCeO2ÌåϵÖй涨µÄÊǽ«Ce£¨4f£¬5s£¬5p£¬5d£¬6s£©×÷Ϊ¼Ûµç×Ó´¦ÀíµÄ£¬ÄÇÊDz»ÊǾÍÊÇ¿´×îÄÚ²ãµÄ¼Ûµç×ÓÊÇdµç×Ó»¹ÊÇfµç×Ó£¬¶ø¼ÓÒÔÑ¡ÔñµÄ£¿ÄÇÈç¹ûÊÇSµç×ÓÄØ£¿Ð»Ð»À²
5Â¥2013-04-13 22:08:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

emilyoyang

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by wuli8 at 2013-04-13 21:54:35
LDAU        = .FALSE.²»¶Ô

Setting LDAU=.TRUE. in the INCAR file switches on the L(S)DA+U....

Yes, U are right. I mad a mistak, because i just copy the setting suggested in the manual without changing the defaut valuse
6Â¥2013-04-13 22:56:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

emilyoyang

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by cuiwen0314 at 2013-04-13 15:30:57
¸ÐлÄúµÄ»Ø¸´£¡ÓÐÒ»µãÎÒ²»Ã÷°×µÄÊÇÈç¹ûU²»¸ø¶¨µÄ»°£¬ÄÇLDAUL=
LDAUU=
LDAUJ=
LMAXMIX =
Õ⼸¸öÁ¿ÊÇÈçºÎÉ趨µÄÄØ£¬ÎÒ¿´ËµÃ÷Êé
LDAUU=U1 U2   ... specifies the effective on-site Coulomb interaction p ...

Sorry, please change LDAU        = .FALSE. to .TRUE. as suggeted by wuli8 . i mad a mistake.
If not DFT+U, U¡¡do not need these settings in INCAR, please leave it, these settings enjoy its default valuse in INCAR.
there are many ways to get the U values, well, it's another topic we can discuss, which u could reserch it emuch.
the vasp manual give a thorough descriping on the value of LMAXMIX, u can find it by ur self. the default values of LMAXMIX is 2 for s and p
7Â¥2013-04-13 23:09:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cuiwen0314

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
7Â¥: Originally posted by emilyoyang at 2013-04-13 23:09:35
Sorry, please change LDAU        = .FALSE. to .TRUE. as suggeted by wuli8 . i mad a mistake.
If not DFT+U, U¡¡do not need these settings in INCAR, please leave it, these settings enjoy its default  ...

Thank you for you explainning. I will research it much.
8Â¥2013-04-15 09:01:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

bjmaowei25

Í­³æ (СÓÐÃûÆø)

ÇëÎÊÂ¥Ö÷£¬ÄãÊÇѡȡCe ØÍÊÆ°üËĸöÖÐÄÇÒ»¸öÄØ£¿

Ce   VRHFIN =Ce : [core= Kr 4d10]       ºÜÂýµÃÊÕÁ²£¬Èç¹û²»µ÷²ÎÊý¼¸ºõ²»ÊÕÁ²
  PAW_PBE Ce 23Dec2003                  
   12.0000000000000     
parameters from PSCTR are:
   VRHFIN =Ce : [core= Kr 4d10]
   LEXCH  = PE
   EATOM  =  1063.0861 eV,   78.1346 Ry

Ce_3  VRHFIN =Ce : [core=Xe4] s2d1f1  ÊÕÁ²ºÜ¿ì£¬µ«ÕâÀﺬ 4f µç×Ó£¿
  PAW_PBE Ce_3 06Sep2000                 
   11.0000000000000     
parameters from PSCTR are:
   VRHFIN =Ce : [core=Xe4] s2d1f1
   LEXCH  = PE
   EATOM  =   890.3669 eV,   65.4401 Ry


Ce_GW                                        Âý
  PAW Ce_GW 26Mar2009                    
   12.0000000000000     
parameters from PSCTR are:
   VRHFIN =Ce : [core=Kr4d]
   LEXCH  = PE
   EATOM  =  1063.0861 eV,   78.1346 Ry


Ce_h                                                    ¿ì
  PAW_PBE Ce_h 03Mar2005                 
   12.0000000000000     
parameters from PSCTR are:
   VRHFIN =Ce : [core=Xe4] s2d1f1
   LEXCH  = PE
   EATOM  =  1063.0861 eV,   78.1346 Ry
×·ÇóÕæÀí
9Â¥2013-06-05 22:56:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cjcorange

½ð³æ (³õÈëÎÄ̳)

ÇëÎÊÏÂÂ¥Ö÷ÏÖÔÚ×öµÃÔõôÑùÁË£¬ Äܲ»ÄÜÇë½ÌÒ»ÏÂ
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