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https://codeberg.org/ET-Kiel/C-V.git
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39 lines
1 KiB
Text
39 lines
1 KiB
Text
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#!/usr/local/bin/gnuplot
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fn="prohepam-190782-II"
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set xlabel "V_{BIAS} [V]"
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set ylabel "C_{DET} [pF]"
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A(x)=column("Vout")/column("Vin")*11/sin(column("phi")*pi/180)
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B(x)=1/(1 - 1/(2*pi*column("f")*10e-9*909e3))
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C(x)=1e12/2/pi/column("f")/909e3-Coff
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Coff = 288+50
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Ath=900e-6 # m²
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eps0 = 8.8542 # pF/m
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eps = 11.68
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d = 500e-6 # m
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Cth(V, Vdep) = eps*eps0*Ath/d * (V>Vdep ? 1 : 1/sqrt(V/Vdep))
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set y2tics
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set ytics nomirror
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set y2lab "I_{BIAS} [nA]"
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unset log y2
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set log y
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set log x
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set xra [5:120]
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set y2ra [0:10]
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## Last datafile plotted: "seth-hetab4.cv"
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set title fn
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set grid mxtics mytics xtics ytics
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set key center top
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plot "<sort -n ".fn.".cv" u "Vbias":"Ibias" axis x1y2 tit "I_{BIAS}" w lp pt 5, \
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"" u "Vbias":(C(1)/A(1)*B(1)) tit "C(ω)×B(ω)/A(a,φ)" with lp pt 7, \
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"" u "Vbias":(C(1)/A(1)) tit "C(ω)/A(a,φ)" with lp pt 6, \
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"" u "Vbias":(C(1)*B(1)) tit "C(ω)×B(ω)" with lp pt 6, \
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"" u "Vbias":(C(1)) tit "C(ω)" with lp pt 6, \
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for [Vdep=50:70:10] Cth(x,0+Vdep) tit sprintf("V_{DEP} = %.0fV", Vdep)
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