Publications by authors named "Takanari Takahashi"
Low-dimensional van der Waals materials have been extensively studied as a platform with which to generate quantum effects. Advancing this research, topological quantum materials with van der Waals structures are currently receiving a great deal of attention. Here, we use the concept of designing topological materials by the van der Waals stacking of quantum spin Hall insulators.
View Article and Find Full Text PDFPressure-induced topological phase transition in noncentrosymmetric elemental tellurium.
Proc Natl Acad Sci U S A
December 2019
Article Synopsis
- Recent advances in electronic band topology suggest a need to reevaluate the band structures of familiar materials, including elemental substances.
- Researchers have identified signs of a transition from a semiconductor to a Weyl semimetal in elemental tellurium due to pressure changes, observed through transport measurements.
- Key indicators like variations in Shubnikov-de Haas oscillations and changes in effective cyclotron mass indicate band deformation and potential emergence of massless behavior as the pressure approaches a critical level for the topological phase transition.