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added B 2nd moment

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nemu
2010-08-17 11:12:00 +00:00
parent 9f52014d73
commit 50e3838a5f
3 changed files with 26 additions and 14 deletions
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3
src/tests/nonlocal/PPippard.cpp
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@ -248,7 +248,7 @@ void PPippard::CalculateFieldSpecular()
} }
} }
cout << endl << "fShift = " << fShift; cout << endl << "debug> fShift = " << fShift;
for (Int_t i=0; i<PippardFourierPoints; i++) { for (Int_t i=0; i<PippardFourierPoints; i++) {
fFieldB[i][1] /= norm; fFieldB[i][1] /= norm;
@ -397,6 +397,7 @@ void PPippard::SaveField()
if (fParams.meanB != 0.0) { if (fParams.meanB != 0.0) {
fprintf(fp, "%% Mean Distance = %lf\n", fParams.meanX); fprintf(fp, "%% Mean Distance = %lf\n", fParams.meanX);
fprintf(fp, "%% Mean Field/Bext = %lf\n", fParams.meanB); fprintf(fp, "%% Mean Field/Bext = %lf\n", fParams.meanB);
fprintf(fp, "%% 2nd Moment Field/Bext^2 = %lf\n", fParams.secondMomentB);
} }
fprintf(fp, "%%\n"); fprintf(fp, "%%\n");

2
src/tests/nonlocal/PPippard.h
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@ -32,6 +32,7 @@ typedef struct {
TString rgeFileName; TString rgeFileName;
TString outputFileName; TString outputFileName;
Double_t meanB; // int_x=0^infty B(x) n(x) dx / int_x=0^infty n(x) dx / Bext Double_t meanB; // int_x=0^infty B(x) n(x) dx / int_x=0^infty n(x) dx / Bext
Double_t secondMomentB; // int_x=0^infty B^2(x) n(x) dx / int_x=0^infty n(x) dx / Bext^2
Double_t meanX; // int_x=0^infty x n(x) dx / int_x=0^infty n(x) dx Double_t meanX; // int_x=0^infty x n(x) dx / int_x=0^infty n(x) dx
} PippardParams; } PippardParams;
@ -49,6 +50,7 @@ class PPippard
virtual void SetSpecular(Bool_t specular) { fParams.specular = specular; } virtual void SetSpecular(Bool_t specular) { fParams.specular = specular; }
virtual void SetMeanX(Double_t meanX) { fParams.meanX = meanX; } virtual void SetMeanX(Double_t meanX) { fParams.meanX = meanX; }
virtual void SetMeanB(Double_t meanB) { fParams.meanB = meanB; } virtual void SetMeanB(Double_t meanB) { fParams.meanB = meanB; }
virtual void SetSecondMomentB(Double_t BB) { fParams.secondMomentB = BB; }
virtual void CalculateField(); virtual void CalculateField();

17
src/tests/nonlocal/nonlocal.cpp
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@ -365,16 +365,25 @@ int main(int argc, char *argv[])
meanX *= (x[1]-x[0]); meanX *= (x[1]-x[0]);
Double_t meanB = 0.0; Double_t meanB = 0.0;
Double_t secondMomentB = 0.0;
Double_t BB = 0.0;
for (unsigned int i=0; i<x.size()-1; i++) { for (unsigned int i=0; i<x.size()-1; i++) {
if (x[i] <= params.deadLayer) if (x[i] <= params.deadLayer) {
meanB += 1.0 * n[i]; meanB += 1.0 * n[i];
else secondMomentB += 1.0 * n[i];
meanB += pippard->GetMagneticField(x[i]-params.deadLayer) * n[i]; } else {
BB = pippard->GetMagneticField(x[i]-params.deadLayer);
meanB += BB * n[i];
secondMomentB += BB * BB * n[i];
}
} }
meanB *= (x[1]-x[0]); meanB *= (x[1]-x[0]);
secondMomentB *= (x[1]-x[0]);
cout << endl << ">> mean x = " << meanX << ", mean field = " << params.b_ext * meanB; cout << endl << ">> mean x = " << meanX << " (nm), mean field = " << params.b_ext * meanB << " (G)";
cout << " 2nd Moment B = " << secondMomentB << " (G^2)";
pippard->SetMeanX(meanX); pippard->SetMeanX(meanX);
pippard->SetSecondMomentB(secondMomentB);
pippard->SetMeanB(meanB); pippard->SetMeanB(meanB);
} }