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·ÇÏßÐԴžؼÆË㣺

        1£©¼ÆËã·Ç´ÅÐÔ»ù̬²úÉúWA.VECARºÍCHGCAR.Îļþ¡£

        2£©È»ºóINCARÖмÓÉÏ

                ISPIN=2

                ICHARG=1 »ò 11  £¡¶ÁÈ¡WA.VECARºÍCHGCAR.Îļþ

                LNONCOLLINEAR=.TRUE.

                MAGMOM=

×¢Ò⣺¢Ù¶ÔÓÚ·ÇÏßÐԴžؼÆË㣬ҪÔÚx, y ºÍ z·½Ïò·Ö±ð¼ÓÉϴžأ¬Èç

MAGMOM = 1 0 0  0 1 0   £¡±íʾµÚÒ»¸öÔ­×ÓÔÚx·½Ïò£¬µÚ¶þ¸öÔ­×ÓµÄy·½ÏòÓдžØ

¢ÚÔÚÈκÎʱºò£¬Ö¸¶¨MAGMOMÖµµÄǰÌáÊÇICHARG=2£¨Ã»ÓÐWA.VECARºÍCHGCAR.Îļþ£©»òÕßICHARG=1 »ò11£¨ÓÐWA.VECARºÍCHGCAR.Îļþ£©£¬µ«ÊÇǰһ²½µÄ¼ÆËãÊÇ·Ç´ÅÐԵģ¨ISPIN=1£©¡£



´Å¸÷ÏòÒìÐÔÄÜ£¨×ÔÐý¹ìµÀñîºÏ£©¼ÆË㣺

×¢Ò⣺ LSORBIT=.TRUE. »á×Ô¶¯´ò¿ªLNONCOLLINEAR= .TRUE.Ñ¡ÏÇÒ×ÔÐý¹ìµÀ¼ÆËãÖ»ÊÊÓÃÓÚPAWØÍÊÆ£¬²»ÊÊÓÚ³¬ÈíØÍÊÆ¡£

×ÔÐý¹ìµÀñîºÏЧӦ¾ÍÒâζ×ÅÄÜÁ¿¶Ô´Å¾ØµÄ·½Ïò´æÔÚÒÀÀµ£¬¼´´æÔڴŸ÷ÏòÒìÐÔÄÜ£¨MAE£©£¬ËùÒÔÒª¶¨Òå³õʼ´Å¾ØµÄ·½Ïò¡£ÈçÏ£º

               LSORBIT = .TRUE.

              SAXIS = s_x s_y s_z (quantisation axis for spin)

ĬÈÏÖµ£º SAXIS=(0+,0,1)£¬¼´x·½ÏòÓÐÕýµÄÎÞÏÞСµÄ´Å¾Ø£¬Z·½ÏòÓдžء£



Ҫʹ³õʼµÄ´Å¾Ø·½ÏòƽÐÐÓÚÑ¡¶¨·½Ïò£¬ÓÐÒÔÏÂÁ½ÖÖ·½·¨£º

MAGMOM = x y z ! local magnetic moment in x,y,z

SAXIS = 0 0 1 ! quantisation axis parallel to z

or

MAGMOM = 0 0 total_magnetic_moment ! local magnetic moment parallel to SAXIS £¨×¢Òâÿ¸öÔ­×Ó·Ö±ðÖ¸¶¨£©

SAXIS = x y z ! quantisation axis parallel to vector (x,y,z)£¬Èç 0 0 1

Á½ÖÖ·½·¨Ô­ÔòÉÏÓ¦¸ÃÊǵȼ۵쬵«ÊÇʵ¼ÊÉϵڶþÖÖ·½·¨¸ü¾«È·¡£µÚ¶þÖÖ·½·¨ÔÊÐí¶ÁÈ¡ÒÑ´æÔÚµÄWA.VECAR£¨À´×ÔÏßÐÔ»òÕß·Ç´ÅÐÔ¼ÆË㣩Îļþ£¬²¢ÇÒ¼ÌÐøÁíÒ»¸ö×ÔÐý·½ÏòµÄ¼ÆË㣨¸Ä±äSAXIS Öµ¶øMAGMOM±£³Ö²»±ä£©¡£µ±¶Áȡһ¸ö·ÇÏßÐԴžؼÆËãµÄWA.VECARʱ£¬×ÔÐý·½Ïò»áÖ¸¶¨Æ½ÐÐÓÚSAXIS¡£



¼ÆËã´Å¸÷ÏòÒìÐÔµÄÍÆ¼ö²½ÖèÊÇ£º

        1£©Ê×ÏȼÆËãÏßÐԴžØÒÔ²úÉúWA.VECAR ºÍ CHGCAR.Îļþ£¨×¢Òâ¼ÓÈëLMAXMIX£©¡£

        2£©È»ºóINCARÖмÓÈ룺

        LSORBIT = .TRUE.

        ICHARG = 11 ! non selfconsistent run, read CHGCAR

        !»ò ICHARG ==1 ÓÅ»¯µ½Ò×´Å»¯Öᣬµ«´ËʱӦÌá¸ßEDIFFµÄ¾«¶È

        LMAXMIX = 4 ! for d elements increase LMAXMIX to 4, f: LMAXMIX = 6

        ! you need to set LMAXMIX already in the collinear calculation

        SAXIS = x y z ! direction of the magnetic field  Èç 0 0  1

        NBANDS = 2 * number of bands of collinear run £¡ grep NBANDS OUTCAR

        ISYM=0    £¡switch off symmetry (ISYM=0) when spin orbit coupling is selected

        GGA_COMPAT=.FALSE. £¡ it improves the numerical precision of GGA for non collinear calculations

         LORBMOM=.TRUE.  !¼ÆËã¹ìµÀ´Å¾Ø

¼ÌÐø¼ÆË㣬VASP»á¶ÁÈ¡WA.VECAR ºÍ CHGCAR½«×ÔÐýÁ¿×Ó»¯·½Ïò£¨´Å³¡·½Ïò£©Æ½ÐÐÓÚSAXIS·½Ïò¡£

×îºó¿ÉÒԱȽϸ÷¸ö·½Ïò´Å¾ØÊ±ÄÜÁ¿µÄ²»Í¬¡£

×¢Ò⣺ µÚ¶þ²½Ê¹ÓÃ×ÔÇ¢¼ÆËã(ICHARG=1)Ô­ÔòÉÏÒ²ÊÇ¿ÉÒԵ쬵«ÊdzõʼƽÐÐÓÚSAXISµÄ´Å³¡·¢ÉúÐýת£¬Ö±µ½´ïµ½»ù̬£¬ÈçÆ½ÐÐÓÚÒ×´Å»¯Öᣬµ«Õâ¸ö¹ý³Ì»áºÜÂýÇÒÄÜÁ¿±ä»¯ºÜС£¬¶øÇÒÈç¹ûÊÕÁ²±ê×¼²»ÊǺÜÑϸñµÄ»°£¬×ÔÇ¢¼ÆËã»áÔÚδ´ïµ½»ù̬¾ÍÍ£Ö¹¡£



×¢Ò⣺ VASPµÄÊäÈëÊä³öµÄ´Å¾ØºÍÀà×ÔÐýÁ¿¶¼»á°´ÕÕÕâ¸öSAXIS·½Ïò£¬°üÀ¨INCARÖеÄ

MAGMOMÐУ¬OUTCARºÍPROCAR.ÎļþÖеÄ×ܴžغ;ÖÓò´Å¾Ø£¬WA.VECARÖеÄÀà×ÔÐý¹ìµÀºÍCHGCARÖеĴÅÐÔÃܶȡ£



MAGMOM-tag£ºhttps://cms.mpi.univie.ac.at/vas ... g.html#incar-magmom

LNONCOLLINEAR:https://cms.mpi.univie.ac.at/vasp/vasp/LNONCOLLINEAR_tag.html

LSORBIT-tag https://cms.mpi.univie.ac.at/vasp/vasp/LSORBIT_tag.html





2)SOC°æ±¾:

cp makefile.mpi makefile.soc

ÔÚmakefile.socÐÞ¸Ä

CPP  =$(CPP_) -DMPI  -DHOST=\"LinuxIFC\" -DIFC \

    -DCACHE_SIZE=5000 -DPGF90 -Davoidalloc -DNGZhalf \

    -DMPI_BLOCK=262144 -Duse_collective -DscaLAPACK  \

    -DRPROMU_DGEMV  -DRACCMU_DGEMV

ÖÐÈ¥µô-DNGZhalf

È»ºó make -f makefile.soc µÃµ½ vasp £¬²¢ mv vasp vasp.mpi.soc.neb



MAE£¨´Å¸÷ÏòÒìÐÔÄÜ£©-·Ç¹²ÏߴžؼÆËã

SYSTEM = Fe/Gra

LREAL= Auto

ALGO=Fast

IALGO=48

ISYM = 0

ISTART = 1

ICHARG = 11

ENCUT = 500

NPAR=2

ISMEAR = 0 ; SIGMA = 0.2

GGA=91;   VOSKOWN=1

GGA_COMPAT=.FALSE.

ISPIN=2

#MAGMOM=1*5  2*0  1*4

LORBIT = 11

LNONCOLLINEAR=.TRUE.

LSORBIT=.TRUE

LORBMOM=.TRUE

SAXIS= 0 0 1

MAGMOM=0 0 0  0 0 0  0 0 4

LMAXMIX = 4

IBRION =2

LWA.VE=.F; LCHARG=.F

EDIFF = 1E-5 ; EDIFFG = -0.001

×îºó£¬ÓÐÐèÇó»¶Ó­Í¨¹ý΢ÐŹ«ÖÚºÅÁªÏµÎÒÃÇ¡£

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