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• W2020133701 abstract "The irreducible-spherical-tensor form of the effective-mass Hamiltonians for acceptors in cubic semiconductors in a homogeneous magnetic field parallel to a 〈001〉 direction or to a 〈111〉 direction has been derived. The Hamiltonians take into account the full structure of the ${mathrm{ensuremath{Gamma}}}_{8}^{+}$ensuremath{bigoplus}${mathrm{ensuremath{Gamma}}}_{7}^{+}$ valence-band edge, and they contain a point-charge potential with spherically symmetric q-dependent dielectric screening. The eigenstates have been calculated variationally for the case of acceptors in germanium. For both orientations, the computations have been performed as a function of the magnetic-field strength, in the range from 0 to 5 T. The binding energies of the first 36 odd-parity excited states and of the first 4 even-parity states (which form the ground-state multiplet) are obtained. The oscillator strengths of the electric-dipole transitions from the ground-state sublevels to the excited states are also calculated, and the results are used to simulate theoretical acceptor excitation spectra, which are in excellent agreement with the available experimental far-infrared-absorption and photothermal-ionization-spectroscopy spectra. For the ground state and for the final states of G and D lines, theoretical g factors are obtained which are very close to the experimental ones. In particular, the values ${mathrm{g}}_{1}^{ensuremath{'}}$=-0.45 and ${mathrm{g}}_{2}^{ensuremath{'}}$=+0.22 are computed for the acceptor ground state. It is found also that for the ground state and for the excited ${mathrm{ensuremath{Gamma}}}_{8}$(T${mathrm{ifmmodebarelsetextasciimacronfi{}}}_{mathrm{d}}$) final states of the G, D, and B spectral lines, the ratio r=${mathrm{g}}_{2}$/${4mathrm{g}}_{1}$ is always very close to the special values -541, which corresponds to a linear Zeeman splitting of the ${mathrm{ensuremath{Gamma}}}_{8}$ states into a degenerate doublet for Bensuremath{Vert}〈111〉 and into an equally spaced quartet for Bensuremath{Vert}〈001〉." @default.
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• W2020133701 date "1991-04-15" @default.
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• W2020133701 title "Acceptor excitation spectra in germanium in a uniform magnetic field" @default.
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• W2020133701 doi "https://doi.org/10.1103/physrevb.43.9643" @default.
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