105 citations · 654 across the 30 of their papers we have counts for
7 papers · 1 filter
Disentangling lattice and electronic instabilities in the excitonic insulator candidate TaNiSe by nonequilibrium spectroscopy
Kota Katsumi, Alexandr Alekhin, Sofia-Michaela Souliou +7
TaNiSe is an excitonic insulator candidate showing the semiconductor/semimetal-to-insulator (SI) transition below = 326 K. However, since a structural transi…
Strong electron-phonon coupling and enhanced phonon Grüneisen parameters in valence-fluctuating metal EuPdSi
Mai Ye, Mark Joachim Graf von Westarp, Sofia-Michaela Souliou +7
We study the valence crossover and strong electron-phonon coupling of EuPdSi by polarization-resolved Raman spectroscopy. The fully-symmetric phonon mode shows strongly asy…
An Electronic Nematic Liquid in BaNiAs
Yi Yao, Roland Willa, Tom Lacmann +10
Understanding the organizing principles of interacting electrons and the emergence of novel electronic phases is a central endeavor of condensed matter physics. Electronic nematici…
Elastoresistivity in the incommensurate charge density wave phase of BaNi(AsP)
M. Frachet, P. W. Wiecki, T. Lacmann +7
Electronic nematicity, the breaking of the crystal lattice rotational symmetry by the electronic fluid, is a fascinating quantum state of matter. Recently, BaNiAs has emerg…
Charge-density-wave transitions, phase diagram, soft phonon and possible electronic nematicity: a thermodynamic investigation of BaNi2(As,P)2
Christoph Meingast, Anmol Shukla, Liran Wang +9
A detailed investigation of BaNi2(As,P)2 single crystals using high-resolution thermal-expansion, heat-capacity,Young-modulus and resistivity measurements is presented. The experim…
Soft-phonon and charge-density-wave formation in nematic BaNiAs
S. M. Souliou, T. Lacmann, R. Heid +7
We use diffuse and inelastic x-ray scattering to study the formation of an incommensurate charge-density-wave (I-CDW) in BaNiAs, a candidate system for charge-driven electr…