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Impact of static disorder on quasiparticle spectra: Debye-Waller, mean free path and potential fluctuation effects
Enrico Della Valle, Procopios Constantinou, Thorsten Schmitt +3
ARPES is a widely used characterization technique in condensed matter physics, providing direct access to the single-electron spectral function of crystals, including their electro…
Collective nature of orbital excitations in layered cuprates in the absence of apical oxygens
Leonardo Martinelli, Krzysztof Wohlfeld, Jonathan Pelliciari +19
We have investigated the 3d orbital excitations in CaCuO2 (CCO), Nd2CuO4 (NCO), and La2CuO4 (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as w…
Spin waves and orbital contribution to ferromagnetism in a topological metal
Wenliang Zhang, Teguh Citra Asmara, Yi Tseng +11
Special arrangements of atoms with more than one atom per unit cell, including honeycomb or kagome (woven bamboo mat) lattices, can host propagating excitations with non-trivial to…