[Wien] about AFM calculation
Shen Li Qiu
qiu at fau.edu
Mon Jan 22 20:14:25 CET 2007
>I knon how to setup AFm caluculation ( I don't forget flipping my spins
>etc...) and it's obvious for me that the total magnetic moment is partial *
>multiplicity + interstitial moment, my question was how I can distinguish
>between moments of NM and AFM calculation ?
>
>May the total energies play a role in finding the difference between AFM and
>NM solutions ?
>
The following two outputs (at the ends of the *.scf files) show clearly the
the difference between AFM and NM solutions.
(1) The output of the AFM calculation on Cr using 2-atom bcc unit cell at a
given lattice constant is as follows:
CHARGES OF MIXED CHARGE DENSITY
:CUP : SPIN-UP INTERSTITIAL CHARGE= 2.1716793
:CDN : SPIN-DN INTERSTITIAL CHARGE= 2.1716793
:CTO : TOTAL INTERSTITIAL CHARGE= 4.3433586
:CUP001: SPIN-UP CHARGE IN SPHERE 1 = 11.2659484
:CUP002: SPIN-UP CHARGE IN SPHERE 2 = 10.5623723
:CDN001: SPIN-DN CHARGE IN SPHERE 1 = 10.5623723
:CDN002: SPIN-DN CHARGE IN SPHERE 2 = 11.2659484
:CTO001: TOTAL CHARGE IN SPHERE 1 = 21.8283207
:CTO002: TOTAL CHARGE IN SPHERE 2 = 21.8283207
MAGNETIC MOMENTS OF MIXED CHARGE DENSITY
:MMINT: MAGNETIC MOMENT IN INTERSTITIAL = 0.00000
:MMI001: MAGNETIC MOMENT IN SPHERE 1 = 0.70358
:MMI002: MAGNETIC MOMENT IN SPHERE 2 = -0.70358
:MMTOT: TOTAL MAGNETIC MOMENT IN CELL = 0.00000
:NEC03: NUCLEAR AND ELECTRONIC CHARGE 48.00000 48.00000 1.00000
:ENE : ********** TOTAL ENERGY IN Ry = -4195.485791
(2) The output of the NM calculation on Cr using 2-atom bcc unit cell at
the same lattice constant as in the AF calculation is as follows:
CHARGES OF MIXED CHARGE DENSITY
:CUP : SPIN-UP INTERSTITIAL CHARGE= 2.1768491
:CDN : SPIN-DN INTERSTITIAL CHARGE= 2.1768491
:CTO : TOTAL INTERSTITIAL CHARGE= 4.3536982
:CUP001: SPIN-UP CHARGE IN SPHERE 1 = 10.9115791
:CUP002: SPIN-UP CHARGE IN SPHERE 2 = 10.9115718
:CDN001: SPIN-DN CHARGE IN SPHERE 1 = 10.9115791
:CDN002: SPIN-DN CHARGE IN SPHERE 2 = 10.9115718
:CTO001: TOTAL CHARGE IN SPHERE 1 = 21.8231582
:CTO002: TOTAL CHARGE IN SPHERE 2 = 21.8231436
MAGNETIC MOMENTS OF MIXED CHARGE DENSITY
:MMINT: MAGNETIC MOMENT IN INTERSTITIAL = 0.00000
:MMI001: MAGNETIC MOMENT IN SPHERE 1 = 0.00000
:MMI002: MAGNETIC MOMENT IN SPHERE 2 = 0.00000
:MMTOT: TOTAL MAGNETIC MOMENT IN CELL = 0.00000
:NEC03: NUCLEAR AND ELECTRONIC CHARGE 48.00000 48.00000 1.00000
:ENE : ********** TOTAL ENERGY IN Ry = -4195.485532
Shen Li Qiu
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