mirror of
https://github.com/LCPQ/DEHam
synced 2024-11-13 09:33:52 +01:00
368 lines
10 KiB
FortranFixed
368 lines
10 KiB
FortranFixed
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BEGIN_PROVIDER [integer, natom]
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&BEGIN_PROVIDER [integer, natrest]
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&BEGIN_PROVIDER [integer, ial0]
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&BEGIN_PROVIDER [logical*1, yham]
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&BEGIN_PROVIDER [logical*1, FAM1]
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&BEGIN_PROVIDER [integer, nlientot]
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&BEGIN_PROVIDER [real*8, xt,(maxlien)]
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&BEGIN_PROVIDER [real*8 , xjz,(maxlien)]
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&BEGIN_PROVIDER [real*8 , xv1]
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&BEGIN_PROVIDER [integer, iliatom1,(maxlien)]
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&BEGIN_PROVIDER [integer, iliatom2,(maxlien)]
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&BEGIN_PROVIDER [integer, ivoisl1,(6,maxlien)]
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&BEGIN_PROVIDER [real*8, Emin]
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&BEGIN_PROVIDER [real*8, Emax]
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&BEGIN_PROVIDER [integer, M0]
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&BEGIN_PROVIDER [integer, nalpha]
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&BEGIN_PROVIDER [integer, nbeta]
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BEGIN_DOC
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! read data
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END_DOC
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implicit none
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logical*1 ysuiv
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logical*1 yec
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logical*1 yw
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logical y(natomax)
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logical ykl(maxlien)
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logical yplac2(maxlien)
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logical yplac(maxlien)
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! integer,allocatable :: l1(:),l2(:),ktyp(:)
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integer :: ityp
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!C real*8,allocatable :: xjjz(:),xjjxy(:)
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!C real*8,allocatable :: xtt(:)
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integer :: iprec,maxda2,niter,ngao,nvec,numero,nes4
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integer :: ilien(natomax,natomax)
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integer :: nlien,ilien2(natomax,natomax)
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real*8 xjxy(maxlien)
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integer :: nvois1(natomax),ikx(maxlien)
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integer :: iech(natomax,natomax)
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integer :: ltyp(maxlien),nvois(natomax),ivois1(6,natomax)
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integer :: nvoisl1(maxlien)
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integer :: i,ik,ikk,ikl,ik1,ik2,iiki,j,il,il2,il3,il4
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integer :: kko,kkio1,kkio2,kkio1ou,klo1,l,nlientot2
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integer :: klo2,kat1,kat2,ii,jclust,kl,jk,nplac
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integer :: jplac(2,maxlien),iplac(4,maxplac)
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real*8 xj1
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real*8 xj2
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real*8 xt1
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real*8 xt2
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real*8 xv2
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! real*8 xv1
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real*8 xv3
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real*8 xbJ
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real*8 xbT
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real*8 xspar
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real*8 xsperp
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real*8 xseuil
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real*8 xeneparJ
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real*8 xeneparT
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real*8 xeneperpJ
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real*8 xeneperpT
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real*8 xenediagJ
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real*8 xenediagT
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!C allocate (xtt(maxlien))
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!C allocate (xjjz(maxlien))
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!C allocate (xjjxy(maxlien))
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!C NAMELIST/hamilton/yham,FAM1
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!C NAMELIST/clust/l1,l2,ktyp
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!C NAMELIST/integ/ityp,xjjz,xjjxy,xtt
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!C NAMELIST/param/xj1,xj2,xt1,xt2,xv1,xv2,xv3,xbJ,xbT,xeneperpJ, &
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!C xeneparJ,xenediagJ,xeneperpT,xeneparT,xenediagT,xspar,xsperp
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!C NAMELIST/infdia/isz,iprec,maxda2,niter,ngao,nvec,numero,nes4, &
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!C xseuil,ysuiv,yec
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! NAMELIST/scsrev1/Emin,Emax,M0
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ilien2=0
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yw=.FALSE.
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!-----mise a zero
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jclust=0
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natom=0
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nlientot=0
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do ikk=1,maxlien
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iliatom1(ikk)=0
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iliatom2(ikk)=0
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enddo
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do ik=1,natomax
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do j=1,natomax
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ilien(j,ik)=0
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iech(j,ik)=0
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enddo
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enddo
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!------------------Lecture Hamiltonien
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FAM1=.TRUE.
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yham=.TRUE.
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write(6,*)'HAMILTONIEN t-J'
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write(6,*)'Le nombre de trou est : ',ntrou
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!---------------------------------------------
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write(6,*)' '
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write(6,*)' '
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write(6,*)'LECTURE DES ATOMES, DES LIAISONS, DES INTEGRALES'
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write(6,*)' '
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write(6,*)' '
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!-----------Lecture 1ier voisin
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! read(5,clust)
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jclust=jclust+1
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if(yw)write(6,*)' '
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write(6,*)'================ CLUSTER',jclust,'=================='
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write(6,*)' '
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!------------------------
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do i=1,maxlien
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if(l1(i).eq.0)EXIT
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nlien=i
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enddo
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if(yw)write(6,*)(l1(i),i=1,maxlien)
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write(6,*)'Liaisons entre les atomes',nlien
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do i=1,natomax
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y(i)=.false.
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enddo
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do i=1,nlien
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ilien(l1(i),l2(i))=nlientot+i
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ilien(l2(i),l1(i))=nlientot+i
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if(l1(i).lt.l2(i))then
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iliatom1(nlientot+i)=l1(i)
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iliatom2(nlientot+i)=l2(i)
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else
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iliatom1(nlientot+i)=l2(i)
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iliatom2(nlientot+i)=l1(i)
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endif
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iech(l1(i),l2(i))=(-1)**(l2(i)-l1(i)+1)
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iech(l2(i),l1(i))=(-1)**(l2(i)-l1(i)+1)
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y(l1(i))=.true.
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y(l2(i))=.true.
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ltyp(nlientot+i)=ktyp(i)
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write(6,*)'Les atomes ',l1(i),' et ',l2(i),' forment la liaison', &
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ilien(l1(i),l2(i)),'qui est de type',ltyp(i)
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if(yw)write(6,*)'iliatom1',iliatom1(i)
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enddo
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nlientot=nlientot+nlien
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do i=1,natomax
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if(y(i))natom=natom+1
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enddo
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write(6,*)'============================================='
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write(6,*)'Le nombre total d atomes est ',natom
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write(6,*)'============================================='
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!----------------------------------------------------------------
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!----------------Voisins---------------------
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! nvois(ik)=nbre de voisins de ik
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! (ivois(ii,ik),ii=1,nvois(ik))=No des voisins
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!--------------------------------------------
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do ik=1,natom
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nvois1(ik)=0
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do ii=1,6
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ivois1(ii,ik)=0
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enddo
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enddo
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do ik=1,natom
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do ii=1,natom
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if (ilien(ik,ii).ne.0) then
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nvois1(ik)=nvois1(ik)+1
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ivois1(nvois1(ik),ik)=ii
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endif
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enddo
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enddo
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!----------------------------------------------------------------
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! calcul des liaisons voisines de type 1
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!-------------------------------------------------------
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do i=1,nlientot
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nvoisl1(i)=0
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do j=1,6
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ivoisl1(j,i)=0
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enddo
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enddo
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do i=1,natom
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do j=i+1,natom
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if(ilien(i,j).ne.0)then
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l=ilien(i,j)
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else
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EXIT
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endif
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do ik=1,nvois1(i)
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if(ivois1(ik,i).ne.j)then
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nvoisl1(l)=nvoisl1(l)+1
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ivoisl1(nvoisl1(l),l)=ilien(ivois1(ik,i),i)
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endif
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enddo
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do jk=1,nvois1(j)
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if(ivois1(jk,j).ne.i)then
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nvoisl1(l)=nvoisl1(l)+1
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ivoisl1(nvoisl1(l),l)=ilien(ivois1(jk,j),j)
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endif
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enddo
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enddo
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enddo
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ityp=3
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!C xjjz=(/.1000d0,-0.8d0,0.000d0/)
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!C xjjxy=(/.1000d0,-0.8d0,0.000d0/)
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!C xtt=(/-1.0000d0,0.d0,0.0d0/)
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write(6,*)'Nombre de J differents',ityp
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do ikl=1,nlientot
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Ykl(ikl)=.false.
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enddo
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do il=1,nlientot
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write(6,*)'type de liaison',il,ltyp(il)
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enddo
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do iiki=1,ityp
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write(6,*)'type de J',xjjz(iiki)
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enddo
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do il=1,nlientot
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if(.not.ykl(il))then
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xjz(il)=xjjz(ltyp(il))
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write(6,*)'Parametres : Jz',il,'=',xjz(il)
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xjxy(il)=xjjxy(ltyp(il))
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write(6,*)'Parametres : Jxy',il,'=',xjxy(il)
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xt(il)=xtt(ltyp(il))
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write(6,*)'Parametre : t',il,'=',xt(il)
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ykl(il)=.true.
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endif
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enddo
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xbJ=0.00d0
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xbT=0.0d0
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xv1=0.0d0
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xv2=0.0d0
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xv3=0.0d0
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xt1=-0.20d0
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xt2=0.0d0
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xj1=0.01d0
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xj2=0.d0
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xeneparJ=0.000d0
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xeneparT=0.000d0
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xeneperpJ=0.000d0
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xeneperpT=0.000d0
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xenediagJ=0.000d0
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xenediagT=0.000d0
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xspar=-0.00d0
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xsperp=-0.00d0
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write(6,*)'coucoudslect3'
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write(6,*)'coucou'
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write(6,*)'Parametres pour le t-J'
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write(6,*)'xj1 = ',xj1
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write(6,*)'xj2 = ',xj2
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write(6,*)'xt1 = ',xt1
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write(6,*)'xt2 = ',xt2
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write(6,*)'xv1 = ',xv1
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write(6,*)'xv2 = ',xv2
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write(6,*)'xv3 = ',xv3
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write(6,*)'xbj = ',xbj
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write(6,*)'xbt = ',xbt
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write(6,*)'xeneparJ = ',xeneparJ
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write(6,*)'xeneperpJ = ',xeneperpJ
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write(6,*)'xeneparT = ',xeneparT
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write(6,*)'xeneperpT = ',xeneperpT
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write(6,*)'xenediagJ = ',xenediagJ
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write(6,*)'xenediagT = ',xenediagT
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write(6,*)'xspar = ',xspar
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write(6,*)'xsperp = ',xsperp
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!===================================================================
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!====================================================================
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! calcul des plaquettes pour un 2D t-J
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!===================================================================
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do ikl=1,nlientot
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yplac(ikl)=.false.
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IKX(ikl)=0
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enddo
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nplac=0
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do ikl=1,nlientot
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ik1=iliatom1(ikl)
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ik2=iliatom2(ikl)
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do kkio1=1,nvois1(ik1)
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do kkio2=1,nvois1(ik2)
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kat1=ivois1(kkio1,ik1)
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kat2=ivois1(kkio2,ik2)
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if(kat1.ne.ik2.and.kat2.ne.ik1)then
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if(ilien(kat1,kat2).ne.0)then
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klo1=ilien2(kat1,ik2)
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if (klo1 == 0) cycle
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klo2=ilien2(kat2,ik1)
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if (klo2 == 0) cycle
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if(.not.yplac2(klo1))then
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yplac2(klo1)=.true.
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yplac2(klo2)=.true.
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nplac=nplac+1
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il2=ilien(ik1,kat1)
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il3=ilien(ik2,kat2)
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il4=ilien(kat1,kat2)
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iplac(1,nplac)=ik1
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iplac(2,nplac)=ik2
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iplac(3,nplac)=kat1
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iplac(4,nplac)=kat2
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IKX(ikl)=IKX(ikl)+1
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IKX(il2)=IKX(il2)+1
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IKX(il3)=IKX(il3)+1
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IKX(il4)=IKX(il4)+1
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jplac(IKX(ikl),ikl)=nplac
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jplac(IKX(il2),il2)=nplac
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jplac(IKX(il3),il3)=nplac
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jplac(IKX(il4),il4)=nplac
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endif
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endif
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endif
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enddo
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enddo
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enddo
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write(6,*)'Le systeme comporte ',nplac,' plaquettes.'
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do kko=1,nplac
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write(6,*)'La plaquette ',kko,' est contituee des atomes',&
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iplac(1,kko),' ',iplac(2,kko),' ',iplac(3,kko),' et ',iplac(4,kko)
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enddo
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!===================================================================
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! isz=0
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IPREC=8
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maxda2=20
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NITER=280
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ngao=100
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nvec=8
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numero=1
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NES4=0
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xseuil=1.0E-008
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ysuiv=.FALSE.
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yec=.TRUE.
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write(6,*)'Spin total',isz
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write(6,*)'Nombre de vecteurs demande',nvec
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write(6,*)'Nombre maximal d iterations de Davidson',niter
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write(6,*)'Vecteur calcule le plus bas',numero
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write(6,*)'Variable Nes4 (vecteurs d essai)',nes4
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write(6,*)'Nombre de determinants en donnees',ngao
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write(6,*)'Variable Ysuiv (suivre le vecteur initial)',ysuiv
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write(6,*)'Seuil au dela duquel seront ecrits les vecteurs',xseuil
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write(6,*)'Option d ecriture des determinants sur FIL2',yec
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! write(6,*)Emin
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! write(6,*)Emax
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! write(6,*)M0
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if(yham)then
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IAL0=(natom-ntrou)/2+mod(natom-ntrou,2)+isz
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else
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IAL0=(natom)/2+mod(natom,2)+isz
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endif
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write(6,*)'=======nombre de centres de spin alpha=====',ial0
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natrest=natom-ntrou
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!C calculating nalpha and nbeta
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if(mod(natom-ntrou+2*isz,2).eq.0)then
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nalpha=(natom-ntrou+2*isz)/2
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nbeta=(natom -ntrou-2*isz)/2
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if(((natom-ntrou)/2).eq.isz)then
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nbeta=0
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endif
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else
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nalpha=(natom-ntrou+2*isz+1)/2
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nbeta=(natom -ntrou-2*isz-1)/2
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if(((natom-ntrou+1)/2).eq.isz)then
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nbeta=0
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endif
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endif
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END_PROVIDER
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