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Showing 1–4 of 4 results
Advanced filters: Author: Wouter Beugeling Clear advanced filters

  • The quantum spin Hall effect is expected not to survive the presence of magnetic impurities. Here, authors report full quantization at very low temperatures in HgTe quantum wells alloyed with a few percent of magnetic Mn atoms, due to Kondo screening.

    • Saquib Shamim
    • Wouter Beugeling
    • Laurens W. Molenkamp
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6

  • Little is known about how edge states in topological materials interact with each other. Here, a quantum spin Hall insulator is used to show that when edge states are brought close together, additional gaps appear in the spectrum.

    • Jonas Strunz
    • Jonas Wiedenmann
    • Laurens W. Molenkamp
    Research
    Nature Physics
    Volume: 16, P: 83-88

  • The quantum spin Hall effect disappears at high magnetic fields when the band inversion is lifted. The authors demonstrate that in contrast, in disordered samples, counter-propagating topological and quantum Hall edge channels prevent the detection of the trivial gap, explaining a previous observation.

    • Saquib Shamim
    • Pragya Shekhar
    • Laurens W. Molenkamp
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7