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Topological materials

2024-06-19

Unique electronic properties of gray tin

The seemingly ordinary and well-known material, tin, exhibits unique electronic properties under extreme but well controlled conditions. The discovery that it turns into Dirac and Weyl semimetals was made by an international team of researchers le...
2023-07-11

 Adv. Electron. Mater. 2023, 2300156

Fast Electrically Switchable Large Gap Quantum Spin Hall States

First-principles calculations by physicists from IF PAN and collaborators indicate the presence of a wide energy gap and the possibility of rapid switching between quantum spin Hall states in a recently discovered family of two-dimensional materials.
2023-06-22
Physical Review Letters 130, 237002 (2023)

Quantized Spin Pumping in Topological Ferromagnetic-Superconducting Nanowires

 In an article published in Physical Review Letters researchers from MagTop IF PAN predict that the precession of the magnetization leads to robust quantized spin pumping in topologically nontrivial nanowires supporting Majorana zero modes.
2023-03-03

Charge dopants control quantum spin Hall materials

Unlike in the quantum Hall effect and quantum anomalous Hall effect, the quantization precision in the quantum spin Hall effect depends on unavoidable background impurities and defects. However, doping with magnetic ions restores the quantization ...
2021-07-21

Materiały topologiczne a granice miniaturyzacji elektronicznej

Postępująca w zawrotnym tempie miniaturyzacja nanoukładów elektronicznych wymaga nowych rozwiązań także w zakresie ultra cienkich połączeń galwanicznych, np. z wykorzystaniem 10-20 nanometrowej szerokości ścieżek metalicznych z miedzi lub złota.
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