Vibrational dichroism of chiral valley phonons

Y Pan, F Caruso - Nano Letters, 2023 - ACS Publications
Valley degrees of freedom in transition metal dichalcogenides thoroughly influence electron–
phonon coupling and its nonequilibrium dynamics. We conducted a first-principles study of …

Nonlinear all‐optical coherent generation and read‐out of valleys in atomically thin semiconductors

P Herrmann, S Klimmer, T Lettau, M Monfared, I Staude… - Small, 2023 - Wiley Online Library
With conventional electronics reaching performance and size boundaries, all‐optical
processes have emerged as ideal building blocks for high speed and low power …

Distinct anharmonic characteristics of phonon-driven lattice thermal conductivity and thermal expansion in bulk MoSe 2 and WSe 2

MK Gupta, S Kumar, R Mittal, SK Mishra… - Journal of Materials …, 2023 - pubs.rsc.org
Using inelastic neutron scattering and X-ray diffraction measurements, together with ab initio
and machine-learning molecular dynamics simulations, we bring out the distinct nature of …

Interlayer Exciton–Phonon Bound State in Bi2Se3/Monolayer WS2 van der Waals Heterostructures

Z Hennighausen, J Moon, KM McCreary, CH Li… - ACS …, 2023 - ACS Publications
The ability to assemble layers of two-dimensional (2D) materials to form permutations of van
der Waals heterostructures provides significant opportunities in materials design and …

Coherent-Phonon-Driven Intervalley Scattering and Rabi Oscillation in Multivalley 2D Materials

C Wang, X Liu, Q Chen, D Chen, Y Wang, S Meng - Physical Review Letters, 2023 - APS
Resolving the complete electron scattering dynamics mediated by coherent phonons is
crucial for understanding electron-phonon couplings beyond equilibrium. Here we present a …

[PDF][PDF] Valley filtering and valley-polarized collective modes in bulk graphene monolayers

JL Zheng, F Zhai - Chinese Physics B, 2024 - cpb.iphy.ac.cn
The presence of two sublattices in hexagonal graphene brings two energetically degenerate
extremes in the conduction and valence bands, which are identified by the valley quantum …

Revealing ultrafast phonon mediated inter-valley scattering through transient absorption and high harmonic spectroscopies

K Lively, SA Sato, G Albareda, A Rubio, A Kelly - Physical Review Research, 2024 - APS
Processes involving ultrafast laser driven electron-phonon dynamics play a fundamental
role in the response of quantum systems in a growing number of situations of interest, as …

Anomalous valley Hall effect induced by mirror symmetry breaking in transition metal dichalcogenides

S Ji, R Yao, C Quan, J Yang, F Caruso, X Li - Physical Review B, 2023 - APS
The control of the valley degree of freedom in Bloch electrons has opened up new avenues
for information processing. The synthesis of ferrovalley materials, however, has been limited …

Ab initio calculations of electronic, magnetic, optical, and photocatalytic properties of strained 1t–zrse2

SMTS Afrid, A Zubair - Materials Today Communications, 2023 - Elsevier
Because transition metal dichalcogenides (TMDs) can withstand high strain, strain
engineering has shown to be an attractive strategy for modulating TMD characteristics and …

Observation of phonon Stark effect

Z Huang, Y Bai, Y Zhao, L Liu, X Zhao, J Wu… - Nature …, 2024 - nature.com
Stark effect, the electric-field analogue of magnetic Zeeman effect, is one of the celebrated
phenomena in modern physics and appealing for emergent applications in electronics …