# SpinWave input file S. Petit LLB # use: sqw_spinwave('LaMnO3.txt') to build the 4D model # sqw_spinwave('LaMnO3.txt', 'powder') to build the 2D model # # See: F. Moussa, M. Hennion, J. Rodriguez-Carvajal, H. Moudden, L. Pinsard # and A. Revcolevschi, Spin waves in the antiferromagnet perovskite LaMnO3: # A neutron-scattering study., Phys. Rev. B. Condens. Matter 54, 15149 (1996). # COD: http://crystallography.net/cod/1006141.html # ------------------------------------------- # LaMnO3 # AX = 5.53 AY = 5.74 AZ = 7.66 ALFA= 90.0 BETA= 90.0 GAMA= 90.0 # # ------------------------------------------- # Spin positions # I= 1,NOM=MN3, X= 0.50 ,Y= 0.00 ,Z=0.00, PHI= 0 , THETA= 90, CX=1, B20=-0.3 I= 2,NOM=MN3, X= 0.00 ,Y= 0.50 ,Z=0.00, PHI= 0 , THETA= 90, CX=1, B20=-0.3 I= 3,NOM=MN3, X= 0.50 ,Y= 0.00 ,Z=0.50, PHI= 180, THETA= 90, CX=1, B20=-0.3 I= 4,NOM=MN3, X= 0.00 ,Y= 0.50 ,Z=0.50, PHI= 180, THETA= 90, CX=1, B20=-0.3 # # ------------------------------------------- # # First-neighbour coupling J1 # I1= 1,I2= 2,J1=-1.7,D1= 4.1 I1= 3,I2= 4,J1=-1.7,D1= 4.1 # # # Second-neighbour (along c) J1 # I1= 1,I2= 3,J1= 1.0,D1= 4.1 I1= 2,I2= 4,J1= 1.0,D1= 4.1 # # ------------------------------------------- # Scan definition # #Q0X=0.0,Q0Y=0.0,Q0Z=0.0 #DQX=0.005,DQY=0.005,DQZ=0.00 #NP=400 # #FICH=res-LaMnO3-h00.txt # #Q0X=0.0,Q0Y=0.0,Q0Z=1.0 #QX=0.005,DQY=0.005,DQZ=0.00 #NP=400 # #FICH=res-LaMnO3-h01.txt # #Q0X=0.0,Q0Y=0.0,Q0Z=1.0 #DQX=0.00,DQY=0.00,DQZ=0.01 #NP=400 # #FICH=res-LaMnO3-00l.txt # TOF,NFIBO=16,QMIN=0.01,QMAX=3,NP=31 FICH=res-LaMnO3-pwd.txt # # ------------------------------------------- # options # REG1=0.01,REG2=0.01,REG3=0.01 WMAX=35,NW=150,SIG=0.5 # #