Low-field mobility groups in database{ …_zb{} } and database{ …_wz{} }

There are about 23 identical groups available directly under all zincblende- and wurtzite-related groups. In this section we describe four of them, specifically all groups related to low-field mobility models:

Attention

database{ …{ mobility_simba{} } } is implemented only in nextnano³

database{ …{ mobility_constant{} } }

The constant mobility model is due to lattice scattering (phonon scattering) and leads to a constant mobility that depends only on the temperature. See Low-field mobility models for details on models.

electrons{} (optional)

mumax (optional)

bulk phonon mobility for electrons (\(\mu_{max}^{n}\))

type:

double

unit:

cm² V^-1 s^-1

exponent (optional)

temperature dependence exponent for electrons

type:

double

unit:

None

holes{} (optional)

mumax (optional)

bulk phonon mobility for holes (\(\mu_{max}^{p}\))

type:

double

unit:

cm² V^-1 s^-1

exponent (optional)

temperature dependence exponent for holes

type:

double

unit:

None

database{ …{ mobility_masetti{} } }

See Low-field mobility models for details on this model.

electrons{} (optional)

mumax (optional)

bulk phonon mobility (\(\mu_{max}^{n}\))

type:

double

unit:

cm² V^-1 s^-1

exponent (optional)

temperature dependence exponent

type:

double

unit:

None

mumin1 (optional)

reference mobility parameter (\(\mu_{min1}^n\))

type:

double

unit:

cm² V^-1 s^-1

mumin2 (optional)

reference mobility parameter (\(\mu_{min2}^n\))

type:

double

unit:

cm² V^-1 s^-1

mu1 (optional)

reference mobility parameter (\(\mu_1^n\))

type:

double

unit:

cm² V^-1 s^-1

pc (optional)

reference doping concentration parameter (\(P_c^n\))

type:

double

unit:

None

cr (optional)

reference doping concentration parameter (\(C_r^n\))

type:

double

unit:

None

cs (optional)

reference doping concentration parameter (\(C_s^n\))

type:

double

unit:

None

alpha (optional)

reference doping concentration parameter (\(\alpha^n\))

type:

double

unit:

None

beta (optional)

reference doping concentration parameter (\(\beta^n\))

type:

double

unit:

None

holes{} (optional)

mumax (optional)

bulk phonon mobility (\(\mu_{max}^{p}\))

type:

double

unit:

cm² V^-1 s^-1

exponent (optional)

temperature dependence exponent

type:

double

unit:

None

mumin1 (optional)

reference mobility parameter (\(\mu_{min1}^p\))

type:

double

unit:

cm² V^-1 s^-1

mumin2 (optional)

reference mobility parameter (\(\mu_{min2}^p\))

type:

double

unit:

cm² V^-1 s^-1

mu1 (optional)

reference mobility parameter (\(\mu_1^p\))

type:

double

unit:

cm² V^-1 s^-1

pc (optional)

reference doping concentration parameter (\(P_c^p\))

type:

double

unit:

None

cr (optional)

reference doping concentration parameter (\(C_r^p\))

type:

double

unit:

None

cs (optional)

reference doping concentration parameter (\(C_s^p\))

type:

double

unit:

None

alpha (optional)

reference doping concentration parameter (\(\alpha^p\))

type:

double

unit:

None

beta (optional)

reference doping concentration parameter (\(\beta^p\))

type:

double

unit:

None

database{ …{ mobility_arora{} } }

See Low-field mobility models for details on this model.

electrons{} (optional)

mumin (optional)

reference mobility parameter (\(\mu_{min}^n\))

type:

double

unit:

cm² V^-1 s^-1

alm (Optional)

reference mobility exponent (\(\alpha_m^n\))

type:

double

unit:

None

mud (Optional)

reference mobility parameter (\(\mu_d^n\))

type:

double

unit:

cm² V^-1 s^-1

ald (Optional)

reference mobility exponent (\(\alpha_d^n\))

type:

double

unit:

None

n0 (Optional)

reference impurity parameter (\(N_0^n\))

type:

double

unit:

cm^-3

aln (Optional)

reference impurity exponent ( \(\alpha_n^n\))

type:

double

unit:

None

a (Optional)

reference exponent (\(A_a^n\))

type:

double

unit:

None

ala (Optional)

reference exponent ( \(\alpha_a^n\))

type:

double

unit:

None

holes{} (Optional)

mumin

reference mobility parameter (\(\mu_{min}^p\))

type:

double

unit:

cm² V^-1 s^-1

alm (Optional)

reference mobility exponent (\(\alpha_m^p\))

type:

double

unit:

None

mud (Optional)

reference mobility parameter (\(\mu_d^p\))

type:

double

unit:

cm² V^-1 s^-1

ald (Optional)

reference mobility exponent (\(\alpha_d^p\))

type:

double

unit:

None

n0 (Optional)

reference impurity parameter (\(N_0^p\))

type:

double

unit:

cm^-3

aln (Optional)

reference impurity exponent ( \(\alpha_n^p\))

type:

double

unit:

None

a (Optional)

reference exponent (\(A_a^p\))

type:

double

unit:

None

ala (Optional)

reference exponent ( \(\alpha_a^p\))

type:

double

unit:

None

database{ …{ mobility_minimos{} } }

See Low-field mobility models for details on this model.

electrons{} (Optional)

muL300 (Optional)

bulk phonon mobility for electrons (same as database{ …{ mobility_constant{} } })

type:

double

unit:

cm² V^-1 s^-1

muLexpT (Optional)

temperature dependence exponent (same as database{ …{ mobility_constant{} } } apart from the sign)

type:

double

unit:

None

muLImin300 (Optional)

reference mobility parameter

type:

double

unit:

cm² V^-1 s^-1

muLIexpTabove (Optional)

reference mobility exponent

type:

double

unit:

None

muLIexpTbelow (Optional)

reference mobility exponent

type:

double

unit:

None

TSwitch (Optional)

Switch between equations (2.2.38) and (2.2.39) at this temperature

type:

double

unit:

K

default:

200

Cref300 (Optional)

reference impurity parameter

type:

double

unit:

cm^-3

CrefexpT (Optional)

reference impurity exponent

type:

double

unit:

None

alpha300 (Optional)

reference exponent parameter

type:

double

unit:

None

alphaexpT (Optional)

reference exponent

type:

double

unit:

None

holes{} (optional)

muL300 (Optional)

bulk phonon mobility for electrons (same as database{ …{ mobility_constant{} } })

type:

double

unit:

cm² V^-1 s^-1

muLexpT (Optional)

temperature dependence exponent (same as database{ …{ mobility_constant{} } } apart from the sign)

type:

double

unit:

None

muLImin300 (Optional)

reference mobility parameter

type:

double

unit:

cm² V^-1 s^-1

muLIexpTabove (Optional)

reference mobility exponent

type:

double

unit:

None

muLIexpTbelow (Optional)

reference mobility exponent

type:

double

unit:

None

TSwitch (Optional)

switch between equations (2.2.38) and (2.2.39) at this temperature

type:

double

unit:

K

Cref300 (Optional)

reference impurity parameter

type:

double

unit:

cm^-3

CrefexpT (Optional)

reference impurity exponent

type:

double

unit:

None

alpha300 (Optional)

reference exponent parameter

type:

double

unit:

None

alphaexpT (Optional)

reference exponent exponent

type:

double

unit:

None

database{ …{ mobility_simba{} } }

See Low-field mobility models for details on this model.

Attention

this group is implemented only in nextnano³

electrons{} (optional)

alphaN (optional)

exponent for Caughey/Thomas model (\(\alpha^n\))

type:

double

unit:

None

Nref (optional)

reference doping density (\(N_{ref}^n\))

type:

double

unit:

cm^-3

mumin (optional)

minimum mobility (\(\mu_{min}^n\))

type:

double

unit:

cm² V^-1 s^-1

muN (optional)

reference mobility

type:

double

unit:

cm² V^-1 s^-1

gammaT (optional)

exponent for temperature dependence (\(\gamma^n\))

type:

double

unit:

None

Esat0 (optional)

peak electric field (\(E_0^n\)); models: 1, 3, 5

type:

double

unit:

V cm^-1

Esatd (optional)

temperature dependence parameter of peak electric field (\(d_E^n\)); models: 1, 3, 5

type:

double

unit:

V K^-1 cm^-1

alphaE (optional)

alpha parameter for electric field dependence (\(\alpha^n\)); models: 1, 3, 5

type:

double

unit:

None

betaE (optional)

beta parameter for electric field dependence (\(\beta^n\)); models: 1, 3, 5

type:

double

unit:

None

vsat0 (optional)

saturation velocity (\(v_0^n\)); models: 2, 3, 4, 5

type:

double

unit:

cm s^-1

vsatd (optional)

temperature dependence parameter of saturation velocity (\(d_v^n\)); models: 2, 3, 4, 5

type:

double

unit:

cm K^-1 s^-1

kappa (optional)

exponent kappa for electric field dependence (\(\kappa^n\)); models: 2, 3, 4, 5

type:

double

unit:

None

ETnormal (optional)

perpendicular electric field (\(E_T^n\))

type:

double

unit:

V cm^-1

holes{} (optional)

alphaN (optional)

exponent for Caughey/Thomas model (\(\alpha^p\))

type:

double

unit:

None

Nref (optional)

reference doping density (\(N_{ref}^p\))

type:

double

unit:

cm^-3

mumin (optional)

minimum mobility (\(\mu_{min}^p\))

type:

double

unit:

cm² V^-1 s^-1

muN (optional)

reference mobility

type:

double

unit:

cm² V^-1 s^-1

gammaT (optional)

exponent for temperature dependence (\(\gamma^p\))

type:

double

unit:

None

Esat0 (optional)

peak electric field (\(E_0^p\)); models: 1, 3, 5

type:

double

unit:

V cm^-1

Esatd (optional)

temperature dependence parameter of peak electric field (\(d_E^p\)); models: 1, 3, 5

type:

double

unit:

V K^-1 cm^-1

alphaE (optional)

alpha parameter for electric field dependence (\(\alpha^p\)); models: 1, 3, 5

type:

double

unit:

None

betaE (optional)

beta parameter for electric field dependence (\(\beta^p\)); models: 1, 3, 5

type:

double

unit:

None

vsat0 (optional)

saturation velocity (\(v_0^p\)); models: 2, 3, 4, 5

type:

double

unit:

cm s^-1

vsatd (optional)

temperature dependence parameter of saturation velocity (\(d_v^p\)); models: 2, 3, 4, 5

type:

double

unit:

cm K^-1 s ^-1

kappa (optional)

exponent kappa for electric field dependence (\(\kappa^p\)); models: 2, 3, 4, 5

type:

double

unit:

None

ETnormal (optional)

perpendicular electric field (\(E_T^p\))

type:

double

unit:

V cm^-1