WebOct 19, 2001 · (TaSe 4) 2 I is a quasi-one-dimensional (1D) electrical conductor. It … WebThe selenide iodides are chemical compounds that contain both selenide ions (Se 2−) and iodide ions (I −) and one or metal atoms.They are in the class of mixed anion compounds or chalcogenide halides.. Some related compounds do not actually contain a selenide ion, instead containing an iodoselenium cation. These cations include SeI 3 +, Se 2 I 4 2+, …

A charge-density-wave topological semimetal

WebSep 26, 2024 · Based on first-principles calculations, we first show that quasi-one-dimensional compound (TaSe4)2I is a type-III Weyl semimetal with larger chiral charges. (TaSe4)2I can support four-fold helicoidal surface states with remarkably long Fermi arcs on the (001) surface. Angle-resolved photoemission spectroscopy measurements are in … WebFeb 8, 2024 · A recent experimental work has reported an excess of the non-linear … ofto tender rounds

The Lee-Fukuyama phason and THz phonon-driven Kerr effects …

Web- Higher-Order Topology and Defect States in the Charge-Density-Wave Phase of (TaSe4)2I (2024) Show less Sun Yat-Sen University Bachelor of Science (BS) Physics. 2011 - ... WebNov 11, 2024 · (TaSe4)2I is a Weyl semimetal that undergoes charge density wave (CDW) ordering below 260K. It is thus a unique system to study the interplay of electronic topology with strong correlations. For example, recent magnetoresistance experiments indicated that (TaSe4)2I might host an axionic insulating phase in which the collective phase mode of … WebMar 9, 2024 · Using time-domain terahertz emission spectroscopy, we investigate this … ofto tr8