Ryoma Kaneko

TL;DR: The terahertz Faraday and infrared Kerr rotations are found to be remarkably enhanced by these resonances with topological electronic structures, demonstrating the novel low-energy optical response inherent to the magnetic WSM.

TL;DR: Experimental observations are presented proving that the pyrochlore iridate, when electronically tuned, can be a topological Weyl semimetal as predicted by recent theories, and the manifestation of the salient Hall response provides one important example of topological states, which promotes a better understanding of WeylSemimetal and indicates the new research direction for the topological-materials design.

TL;DR: The observed properties can be identified to reflect the emergence of multiple Weyl semimetal states with varying numbers of Weyl points and line nodes in respective spin configurations, which may open a promising venue for topological phenomena and functions.

TL;DR: In this article, polarization-resolved Raman scattering measurements on single crystals of the pyrochlore compound were reported, which exhibited a ground state with noncollinear magnetic order, as well as its paramagnetic counterpart.