James Analytis

TL;DR: In this article, the authors describe new polar angle-dependent magneto- resistance (ADMR) measurements in the overdoped cuprate Tl2Ba2CuO6+δ over an expanded range of temperatures and azimuthal angles.

TL;DR: Breznay et al. as discussed by the authors showed that even though there is a mass enhancement of the quasiparticles, there are only small changes to the Fermi surface itself, suggesting that charge order is a more likely origin, with electronic correlations that are strongly dependent on the structural parameters.

Abstract: We perform high-field magnetization measurements on the triangular lattice antiferromagnet Fe$_{1/3}$NbS$_2$. We observe a plateau in the magnetization centered at approximately half the saturation magnetization over a wide range of temperature and magnetic field. From density functional theory calculations, we determine a likely set of magnetic exchange constants. Incorporating these constants into a minimal Hamiltonian model of our material, we find that the plateau and of the $Z_3$ symmetry breaking ground state both arise from interplane and intraplane antiferromagnetic interactions acting in competition. These findings are pertinent to the magneto-electric properties of Fe$_{1/3}$NbS$_2$, which allow electrical switching of antiferromagnetic textures at relatively low current densities.

TL;DR: In this paper, high magnetic field, rf-and microwave-spectroscopy were used to selectively couple to the surface conductivity of Bi$_2$Se$_3$ at high frequency.

TL;DR: A remarkably low critical current is found to reorient the magnetic order in a magnetically intercalated transition metal dichalcogenide, suggesting this class of materials could form a basis for antiferromagnetic spintronics.