The role of X-ray based electron spectroscopies in determining chemical, electronic, and
magnetic properties of solids has been well-known for several decades. A powerful …

Pressure represents a clean tuning parameter for traversing the complex phase diagrams of
interacting electron systems, and as such has proved of key importance in the study of …

This review outlines fundamental principles, instrumentation, and capabilities of angle-
resolved photoemission spectroscopy (ARPES) and microscopy. We will present how high …

The momentum dependence of the nematic order parameter is an important ingredient in
the microscopic description of iron-based high-temperature superconductors. While recent …

Uniaxial stress has proven to be a powerful experimental tuning parameter for effectively
controlling lattice, charge, orbital, and spin degrees of freedom in quantum materials. In …

We explore field and temperature scaling of magnetoresistance in underdoped (x= 0, x=
0.19) and optimally doped (x= 0.31) samples of the high-temperature superconductor BaFe …

Uniaxial-strain experiments have become a powerful tool to unveil the character of
unconventional phases of electronic matter. Here, we propose a combination of the …

The discovery of iron-based superconductors proves that high-temperature
superconductivity is not limited to cuprates. Here, we use transport measurements to …

Electronic nematicity in iron pnictide materials is coupled to both the lattice and the
conducting electrons, which allows both structural and transport observables to probe …

A fundamental part of the puzzle of unconventional superconductivity in the Fe-based
superconductors is the understanding of the magnetic and nematic instabilities of the parent …