Giant Intrinsic Spin Hall Effect in W3Ta and other A15 Superconductors

The spin Hall effect (SHE) is the conversion of charge current to spin current, and non-magnetic metals with large SHEs are extremely sought after for spintronic applications, but their rarity has stifled widespread use.

Carl PavletichOctober 25, 2018

Ludicrous Magnetoresistance in WTe2

Here we report the observation of a ludicrously large positive magnetoresistance (LMR) in the simple, non-magnetic, semi-metallic layered transition metal dichalcogenide, WTe2.

Carl PavletichOctober 25, 2018

A Proposal to Detect Dark Matter Using Axionic Topological Antiferromagnets

Antiferromagnetically doped topological insulators (A-TI) are among the candidates to host dynamical axion fields and axion-polaritons; weakly interacting quasiparticles that are analogous to the dark axion, a long sought after candidate dark matter particle.

Carl PavletichOctober 25, 2018

Pressure-induced superconductivity in WTe2

Tungsten ditelluride (WTe2) is emerging in interest due to its titanic unsaturated magnetoresistance and two dimensional atomic structures. Here we report the first successful observation of pressure-induced superconductivity in WTe2.

Carl PavletichOctober 22, 2018