Electrical, optical, and thermodynamical aspects of sound propagation in HgTe, HgSe, Hg1−xMnxSe, and MnZn spinel ferrites

Srećković, Milesa; Ivanović, N.; Žižić, O.; Bojanić, Slobodan

doi:10.1007/s11664-003-0211-2

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…However, this can be excluded for our experiments, where all electron–phonon relaxation occurs after the hot electrons leave the channel. In addition, assuming a typical electron density of 1 × 10 11 cm –2 per surface state and a velocity of sound of 2.6 km/s, we find a Bloch–Grüneisen temperature of only 4.5 K, which is too small to fit our results. Furthermore, the resistance increase should become more pronounced and shift to higher electron temperatures as we increase the electron densityquite the opposite of what we observe.…”

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confidence: 53%

Electron–Hole Scattering Limited Transport of Dirac Fermions in a Topological Insulator

et al. 2021

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We have experimentally investigated the effect of electron temperature on transport in the two-dimensional Dirac surface states of the three-dimensional topological insulator HgTe. We have found that around the minimal conductivity point, where both electrons and holes are present, heating the carriers with a DC current results in a nonmonotonic differential resistance of narrow channels. We have shown that the observed initial increase in resistance can be attributed to electron–hole scattering, while the decrease follows naturally from the change in Fermi energy of the charge carriers. Both effects are governed dominantly by a van Hove singularity in the bulk valence band. The results demonstrate the importance of interband electron–hole scattering in the transport properties of topological insulators.

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confidence: 53%

Electron–Hole Scattering Limited Transport of Dirac Fermions in a Topological Insulator

et al. 2021

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“…However, this can be excluded for our experiments, where all electron-phonon relaxation occurs after the hot electrons leave the channel. In addition, assuming a typical electron density of 1 × 10 11 cm −2 per surface state and a velocity of sound of 2.6 km/s, 24 we find a Bloch-Grüneisen temperature of only 4.5 K, which is too small to fit our results. Furthermore, the resistance increase should become more pronounced and shift to higher electron temperatures as we increase the electron density -quite the opposite of what we observe.…”

Section: Of Topological Insulatorscontrasting

confidence: 57%

Electron-hole scattering limited transport of Dirac fermions in a topological insulator

Müller,

Yan,

Kashuba

et al. 2021

Preprint

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We experimentally investigate the effect of electron temperature on transport in the two-dimensional Dirac surface states of the three-dimensional topological insulator HgTe. We find that around the minimal conductivity point, where both electrons and holes are present, heating the carriers with a DC current results in a non-monotonic differential resistance of narrow channels. We show that the observed initial increase in resistance can be attributed to electron-hole scattering, while the decrease follows naturally from the change in Fermi energy of the charge carriers. Both effects are governed dominantly by a van Hove singularity in the bulk valence band. The results demonstrate the importance of interband electron-hole scattering in the transport properties

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“…Rather different model of the aggregation can be supposed and cheeked by LS (including the number of aggregations charge, etc): some of them are cylindrical (Figs.3-5). These LS concern the molecules SDS-[CH 3 …”

mentioning

confidence: 99%

Some considerations related to quantum electronics, acoustics and science of material based on experiment and theory

Srećković¹,

Ostojić²,

Kaludjerovic³

et al. 2015

Zas Mat

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Electrical, optical, and thermodynamical aspects of sound propagation in HgTe, HgSe, Hg1−xMnxSe, and MnZn spinel ferrites

Cited by 5 publications

References 9 publications

Electron–Hole Scattering Limited Transport of Dirac Fermions in a Topological Insulator

Electron–Hole Scattering Limited Transport of Dirac Fermions in a Topological Insulator

Electron-hole scattering limited transport of Dirac fermions in a topological insulator

Some considerations related to quantum electronics, acoustics and science of material based on experiment and theory

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