Elastoresistivity in the incommensurate charge density wave phase of BaNi2(As1−xPx)2
Electronic nematicity, the breaking of the crystal lattice rotational symmetry by the electronic
fluid, is a fascinating quantum state of matter. In this work, using electronic transport under …
fluid, is a fascinating quantum state of matter. In this work, using electronic transport under …
Potential Lifshitz transition at optimal substitution in nematic pnictide Ba1−xSrxNi2As2
BaNi2As2 is a structural analog of the pnictide superconductor BaFe2As2, which, like the
iron-based superconductors, hosts a variety of ordered phases including charge density …
iron-based superconductors, hosts a variety of ordered phases including charge density …
Soft-Phonon and Charge-Density-Wave Formation in Nematic
We use diffuse and inelastic x-ray scattering to study the formation of an incommensurate
charge-density-wave (I-CDW) in BaNi 2 As 2, a candidate system for charge-driven …
charge-density-wave (I-CDW) in BaNi 2 As 2, a candidate system for charge-driven …
Endotaxial stabilization of 2D charge density waves with long-range order
Charge density waves are emergent quantum states that spontaneously reduce crystal
symmetry, drive metal-insulator transitions, and precede superconductivity. In low …
symmetry, drive metal-insulator transitions, and precede superconductivity. In low …
Collective magnetic Higgs excitation in a pyrochlore ruthenate
D Wulferding, J Kim, MK Kim, Y Yang, JH Lee… - npj Quantum …, 2023 - nature.com
The emergence of scalar Higgs-type amplitude modes in systems where symmetry is
spontaneously broken has been a highly successful, paradigmatic description of phase …
spontaneously broken has been a highly successful, paradigmatic description of phase …
Combined investigation of collective amplitude and phase modes in a quasi-one-dimensional charge density wave system over a wide spectral range
We investigate experimentally both the amplitude and phase channels of the collective
modes in the quasi-1D charge-density-wave (CDW) system, K 0.3 MoO 3, by combining (i) …
modes in the quasi-1D charge-density-wave (CDW) system, K 0.3 MoO 3, by combining (i) …
Charge density wave transitions, soft phonon, and possible electronic nematicity in
C Meingast, A Shukla, L Wang, R Heid, F Hardy… - Physical Review B, 2022 - APS
A detailed investigation of BaNi 2 (As 1− x P x) 2 single crystals using high-resolution
thermal-expansion, heat-capacity, Young's-modulus, and resistivity measurements is …
thermal-expansion, heat-capacity, Young's-modulus, and resistivity measurements is …
Phonon softening and slowing-down of charge density wave fluctuations in
BaNi 2 As 2 is a nonmagnetic analog of the iron pnictide superconductors, and exhibits an
incommensurate charge density wave (IC-CDW) and a sizable elastoresistance. In this …
incommensurate charge density wave (IC-CDW) and a sizable elastoresistance. In this …
Dimensionality crossover to a two-dimensional vestigial nematic state from a three-dimensional antiferromagnet in a honeycomb van der Waals magnet
The effects of fluctuations and disorder, which are substantially enhanced in reduced
dimensionalities, can play a crucial role in producing non-trivial phases of matter such as …
dimensionalities, can play a crucial role in producing non-trivial phases of matter such as …
Strong electron-phonon coupling and enhanced phonon Grüneisen parameters in valence-fluctuating metal
M Ye, MJG von Westarp, SM Souliou, M Peters… - Physical Review B, 2023 - APS
We study the valence crossover and strong electron-phonon coupling of EuPd 2 Si 2 by
polarization-resolved Raman spectroscopy. The fully symmetric phonon mode shows …
polarization-resolved Raman spectroscopy. The fully symmetric phonon mode shows …