Corpus ID: 236318393

Spectral maximum in photoconductance of a quantum point contact

  title={Spectral maximum in photoconductance of a quantum point contact},
  author={Valeriya Alperovich and D. Kazantsev and V. B. Vinogradov Institute of Physics and Novosibirsk and Russia. and Novosibirsk State Technical University},
A counter-intuitive disappearance of the giant terahertz photoconductance of a quantum point contact (QPC) under increase in the photon energy, which was discovered experimentally (Otteneder et al., Phys. Rev. Applied 10 (2018) 014015) and studied by the numerical calculations of the photon-stimulated transport (O.A. Tkachenko et al., JETP Lett. 108 (2018) 396), is explained here by using qualitative considerations about the momentum conservation upon absorption of terahertz photons. The… Expand

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