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Magnetic torque measurements using a microcantilever have been performed to investigate the superconducting phase of Sr2RuO4 down to 40 mK. For high-quality single crystals with the transition temperature (T-c) of 1.48-1.49 K, an abrupt...
The square lattices formed by main-group elements such as Bi, Sb, Sn, and Si in layered materials have attracted a lot of interest, since they can create rich topological phases. In this paper, we report the slightly distorted square...
The layered WHM-type (W = Zr/Hf/La, H = Si/Ge/Sn/Sb, M = S/Se/Te) materials represent a large family of topological semimetals, which provides an excellent platform to study the evolution of topological semimetal state with the fine...
A Dirac nodal-line semimetal phase, which represents a new quantum state of topological materials, has been experimentally realized only in a few systems, including PbTaSe2, PtSn4, and ZrSiS. In this Letter, we report evidence of nodal...
We report Shubnikov-de Haas (SdH) oscillation measurements on FeSe under high pressure up to P = 16.1 kbar. We find a sudden change in SdH oscillations at the onset of the pressure-induced antiferromagnetism at P similar to 8 kbar. We...
Electrical transport measurements were performed on URu Fe Si single-crystal specimens in high magnetic fields up to 45 T (DC fields) and 60 T (pulsed fields). We observed a systematic evolution of the critical fields for both the hidden...
Most of the searches for Kitaev materials deal with 4d/5d magnets with spin-orbit-coupled J = 1/2 local moments such as iridates and alpha-RuCl3. Here we propose the monoclinic YbCl3 with a Yb3+ honeycomb lattice for the exploration of...
We report on the unusual behavior of the in-plane thermal conductivity. and torque tau response in the Kitaev-Heisenberg material alpha-RuCl3. kappa shows a striking enhancement with linear growth beyond H = 7 T, where magnetic order...
Despite the fact that 1111-type iron arsenides hold the record transition temperature of iron-based superconductors, their electronic structures have not been studied much because of the lack of high-quality single crystals. In this...
We have investigated magnetotransport properties of YRh6Ge4, which was recently predicted to be a triply degenerate nodal semimetal. We find it exhibits remarkable signatures of a chiral anomaly, manifested by large negative longitudinal...
We have investigated the magnetotransport properties and the topological electronic structure of the half-Heusler compound TbPtBi. Our experiments reveal an exceptionally large anomalous Hall effect (AHE) in the canted antiferromagnetic...
Recent reports of a large anomalous Hall effect (AHE) in ferromagnetic Weyl semimetals (FM WSMs) have led to a resurgence of interest in this enigmatic phenomenon. However, due to a lack of tunable materials, the interplay between the...
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