Toni Helm

Normal-state nodal electronic structure in underdoped high-Tc copper oxides

From quantum matter to high-temperature superconductivity in copper oxides

Pseudogap temperature T* of cuprate superconductors from the Nernst effect

Weyl Metals

Magnetotransport study of Dirac fermions inYbMnBi2antiferromagnet

Observation of surface superstructure induced by systematic vacancies in the topological Dirac semimetal Cd3As2

Topological materials discovery using electron filling constraints

Single-particle excitations in disordered Weyl fluids

Topological photonics

Superconductivity in iron compounds

Disorder-driven destruction of a non-Fermi liquid semimetal studied by renormalization group analysis

Nernst effect in the electron-doped cuprate superconductorPr2−xCexCuO4: Superconducting fluctuations, upper critical fieldHc2, and the origin of theTcdome

Weyl and Dirac semimetals in three-dimensional solids

Lifshitz critical point in the cuprate superconductorYBa2Cu3Oyfrom high-field Hall effect measurements

Progress and perspectives on electron-doped cuprates

Topological Materials: Weyl Semimetals

Evolution of the Fermi Surface of the Electron-Doped High-Temperature SuperconductorNd2−xCexCuO4Revealed by Shubnikov–de Haas Oscillations

Transport evidence for Fermi-arc-mediated chirality transfer in the Dirac semimetal Cd3As2