Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact Ionization in $\beta-Ga_2O_3$   A theoretical investigation of extremely high field transport in an emerging
wide-bandgap material $\beta-Ga_2O_3$ is reported from first principles. The
signature high-field effect explored here is impact ionization. Interaction
between a valence-band electron and an excited electron is computed from the
matrix elements of a screened Coulomb operator. Maximally localized Wannier
functions (MLWF) are utilized in computing the impact ionization rates. A
full-band Monte Carlo (FBMC) simulation is carried out incorporating the impact
ionization rates, and electron-phonon scattering rates. This work brings out
valuable insights on the impact ionization coefficient (IIC) of electrons in
$\beta-Ga_2O_3$. The isolation of the $\Gamma$ point conduction band minimum by
a significantly high energy from other satellite band pockets play a vital role
in determining ionization co-efficients. IICs are calculated for electric
fields ranging up to 8 MV/cm for different crystal directions. A Chynoweth
fitting of the computed IICs is done to calibrate ionization models in device
simulators.

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The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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The categories of this paper are: quant-ph