Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / secs2d-0.0.8 / Utilities / Uscaling.m

diff --git a/octave_packages/secs2d-0.0.8/Utilities/Uscaling.m b/octave_packages/secs2d-0.0.8/Utilities/Uscaling.m
new file mode 100644 (file)
index 0000000..bc22970
--- /dev/null
+++ b/octave_packages/secs2d-0.0.8/Utilities/Uscaling.m
@@ -0,0 +1,174 @@
+function [odata,omesh] = Uscaling(imesh,idata);
+
+% [odata,omesh] = Uscaling(imesh,idata);
+
+% This file is part of 
+%
+%            SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
+%         -------------------------------------------------------------------
+%            Copyright (C) 2004-2006  Carlo de Falco
+%
+%
+%
+%  SECS2D is free software; you can redistribute it and/or modify
+%  it under the terms of the GNU General Public License as published by
+%  the Free Software Foundation; either version 2 of the License, or
+%  (at your option) any later version.
+%
+%  SECS2D is distributed in the hope that it will be useful,
+%  but WITHOUT ANY WARRANTY; without even the implied warranty of
+%  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+%  GNU General Public License for more details.
+%
+%  You should have received a copy of the GNU General Public License
+%  along with SECS2D; If not, see <http://www.gnu.org/licenses/>.
+
+load (file_in_path(path,'constants.mat'));
+
+omesh      = imesh;
+odata      = idata;
+
+% scaling factors
+odata.xs   = max(abs([max(imesh.p(1,:))-min(imesh.p(1,:)),max(imesh.p(2,:))-min(imesh.p(2,:))]));
+odata.Vs   = Vth;
+odata.ns   = norm(idata.D,inf);
+odata.us   = un;
+odata.ts   = (odata.xs^2)/(odata.Vs*odata.us);
+odata.Ts   = T0;
+odata.kappas     = odata.Vs^2*q*odata.us*odata.ns/odata.Ts;
+                             
+% adimensional constants
+odata.etan2 = hbar^2 / (2*mndos*odata.xs^2*q*odata.Vs);
+
+% 3-valley masses
+odata.etanxx2 = hbar^2 / (2*mnl*odata.xs^2*q*odata.Vs);
+odata.etanxy2 = hbar^2 / (2*mnt*odata.xs^2*q*odata.Vs);
+
+odata.etanyx2 = hbar^2 / (2*mnt*odata.xs^2*q*odata.Vs);
+odata.etanyy2 = hbar^2 / (2*mnl*odata.xs^2*q*odata.Vs);
+
+odata.etanzx2 = hbar^2 / (2*mnt*odata.xs^2*q*odata.Vs);
+odata.etanzy2 = hbar^2 / (2*mnt*odata.xs^2*q*odata.Vs);
+
+
+odata.etap2 = hbar^2 / (2*mhdos*odata.xs^2*q*odata.Vs);
+odata.beta  = Vth/odata.Vs;
+odata.dn2   = hbar^2 / (4*rn*mndos*odata.xs^2*q*odata.Vs);
+odata.dp2   = hbar^2 / (4*rp*mhdos*odata.xs^2*q*odata.Vs);
+odata.l2    = (odata.Vs*esi) / (odata.ns*odata.xs^2*q);
+odata.l2ox  = (odata.Vs*esio2) / (odata.ns*odata.xs^2*q);
+
+if (isfield(idata,'un'))    
+    odata.un    = idata.un/odata.us;  
+else
+    odata.un    = un/odata.us;
+end
+
+if (isfield(idata,'up'))
+    odata.up    = idata.up/odata.us;
+else
+    odata.up    = up/odata.us;
+end
+
+if (isfield(idata,'FDn'))    
+    odata.FDn    = idata.FDn/odata.Vs;  
+end
+if (isfield(idata,'FDp'))    
+    odata.FDp    = idata.FDp/odata.Vs;  
+end
+
+if (isfield(idata,'tn')) 
+    odata.tn    = idata.tn/odata.ts;
+else
+    odata.tn    = tn/odata.ts;
+end
+if (isfield(idata,'tp')) 
+    odata.tp    = idata.tp/odata.ts;
+else
+    odata.tp   = tp/odata.ts;
+end
+if (isfield(idata,'twn')) 
+    odata.twn    = idata.twn/odata.ts;
+else
+    odata.twn    = twn/odata.ts;
+end
+if (isfield(idata,'twp')) 
+    odata.twp    = idata.twp/odata.ts;
+else
+    odata.twp    = twp/odata.ts;
+end
+
+if (isfield(idata,'kappa')) 
+  odata.kappa = idata.kappa /odata.kappas;
+else
+  odata.kappa = kappaSi/odata.kappas;
+end
+
+odata.ni    = ni/odata.ns;
+if (isfield(idata,'n0')) 
+  odata.n0 = idata.n0 /odata.ns;
+  odata.p0 = idata.p0 /odata.ns;
+else
+  odata.n0 = ni /odata.ns;
+  odata.p0 = ni /odata.ns;
+end
+odata.Nc    = Nc/odata.ns;
+odata.Nv    = Nv/odata.ns;
+
+odata.ei    = Egap/(2*q*odata.Vs) - log(Nv/Nc)/2; 
+odata.eip   = Egap/(2*q*odata.Vs) + log(Nv/Nc)/2; 
+odata.Egap  = Eg0/(q*odata.Vs);
+
+odata.wn2   = 6*sqrt(mndos*2*Kb*T0/(pi*hbar^2))/(ni*odata.xs^2);
+
+odata.vsatn     = vsatn * odata.xs / (odata.us * odata.Vs);
+odata.vsatp     = vsatp * odata.xs / (odata.us * odata.Vs);
+odata.mubn      = mubn;
+odata.mubp      = mubp;
+odata.mudopparn = [ mudopparn(1:3)/odata.us;
+mudopparn(4:6)/odata.ns;
+mudopparn(7:8) ];
+odata.mudopparp = [ mudopparp(1:3)/odata.us;
+mudopparp(4:6)/odata.ns;
+mudopparp(7:8) ];
+
+% 3-valley weights
+odata.wnx2   = 2*sqrt(mnt*2*Kb*odata.Ts/(pi*hbar^2))/(ni*odata.xs^2);
+odata.wny2   = odata.wnx2;
+odata.wnz2   = 2*sqrt(mnl*2*Kb*odata.Ts/(pi*hbar^2))/(ni*odata.xs^2);
+
+% 3-valley weights
+odata.wnx2FD   = 2*sqrt(mnt*2*Kb*odata.Ts/(pi*hbar^2))/(odata.ns*odata.xs^2);
+odata.wny2FD   = odata.wnx2FD;
+odata.wnz2FD   = 2*sqrt(mnl*2*Kb*odata.Ts/(pi*hbar^2))/(odata.ns*odata.xs^2);
+
+odata.mg    = Egap/(2*Kb*odata.Ts) - log(Nv/Nc)/2;
+
+
+% scaled quantities
+odata.D     = idata.D/odata.ns;
+odata.n     = idata.n/odata.ns;
+odata.p     = idata.p/odata.ns;
+odata.Fn    = idata.Fn/odata.Vs-log(ni/odata.ns);
+odata.Fp    = idata.Fp/odata.Vs+log(ni/odata.ns);
+odata.V     = idata.V/odata.Vs;
+if (isfield(idata,'G'))
+    odata.G= idata.G/odata.Vs;
+end
+if (isfield(idata,'dt'))
+    odata.dt= idata.dt/odata.ts;
+end
+if (isfield(idata,'Tl'))
+    odata.Tl= idata.Tl/odata.Ts;
+end
+if (isfield(idata,'Tn'))
+    odata.Tn= idata.Tn/odata.Ts;
+end
+if (isfield(idata,'Tp'))
+    odata.Tp= idata.Tp/odata.Ts;
+end
+
+
+omesh.p     = imesh.p/odata.xs;
+
+