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<p>Fluctuations of dissipative and Hall conductance in submicron conductors based on highly disordered HgTe quantum wells with a semimetallic energy spectrum have been investigated for the first time, and a comparative analysis of their behavior with universal conductance fluctuations in the electron metal state has been carried out. It has been concluded that the highly disordered two-dimensional semimetal in the HgTe quantum well is characterized by the existence of anomalous fluctuations of the dissipative and Hall conductance, whose nature is not related to the well-known universal conductance fluctuations in a disordered metal.</p>

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Fluctuating Conductance of Mesoscopic Conductors Based on a Highly Disordered Two-Dimensional Semimetal in an HgTe Quantum Well

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  • 发表日期：

    2026年4月1日

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  • D. A. Kurmachev,
  • Z. D. Kvon,
  • N. N. Mikhailov

摘要

Fluctuations of dissipative and Hall conductance in submicron conductors based on highly disordered HgTe quantum wells with a semimetallic energy spectrum have been investigated for the first time, and a comparative analysis of their behavior with universal conductance fluctuations in the electron metal state has been carried out. It has been concluded that the highly disordered two-dimensional semimetal in the HgTe quantum well is characterized by the existence of anomalous fluctuations of the dissipative and Hall conductance, whose nature is not related to the well-known universal conductance fluctuations in a disordered metal.