Beispiel #1
0
                    eigEn,
                    tip_r2,
                    Ratin,
                    coefs,
                    orbs=orbs,
                    s=1.0,
                    px=0.0,
                    py=0.0,
                    pz=0.0)
 WF_decay = 1  # ( tunnelling barrier changes 1:1 with applied sample bias)
 current1 = PS.STM(V,
                   nV,
                   WorkFunction,
                   eta,
                   eigEn,
                   tip_r2,
                   Ratin,
                   coefs,
                   orbs=orbs,
                   s=1.0,
                   WF_decay=WF_decay)
 WF_decay = 0  # ( tunnelling barrienr doesn't change)
 current2 = PS.STM(V,
                   nV,
                   WorkFunction,
                   eta,
                   eigEn,
                   tip_r2,
                   Ratin,
                   coefs,
                   orbs=orbs,
Beispiel #2
0
        states_b = True
        WF_decay = 0.0

elif ((scan_type == 'STM') or (scan_type == 'STM-single')):
    nV = abs(V / dV) + 1
    #print "DEBUG: V, nV:", V, nV
    current = np.array([
        PS.STM(V,
               nV,
               WorkFunction,
               eta,
               eigEn,
               tip_r,
               Ratin,
               coefs,
               orbs=sample_orbs,
               s=tc[0],
               px=tc[1],
               py=tc[2],
               pz=tc[3],
               dz2=tc[4],
               dxz=tc[5],
               dyz=tc[6],
               WF_decay=WF_decay)
    ])
    STM_b = True
    #print "DEBUG: current.shape ", current.shape
else:
    current, didv = PS.MSTM(V,
                            V_max,
                            dV,
                         WorkFunction,
                         eta,
                         eigEn,
                         tip_r1,
                         tip_r2,
                         Ratin,
                         coefs,
                         orbs=orbs,
                         dxyz=1.0,
                         al=1.0)
 current5 = PS.STM(V,
                   nV,
                   WorkFunction,
                   eta,
                   eigEn,
                   tip_r1,
                   Ratin,
                   coefs,
                   orbs=orbs,
                   px=0.5,
                   py=0.5,
                   WF_decay=WF_decay)
 # next procedure is under development
 current6 = PS.IETS_simple(V,
                           WorkFunction,
                           eta,
                           eigEn,
                           tip_r1,
                           Ratin,
                           coefs,
                           orbs=orbs,
                           s=0.0,