Stokes and anti-Stokes Raman scattering are performed on atomic layers of hexagonal molybdenum ditelluride (MoTe2), a prototypical transition metal dichalcogenide (TMDC) semiconductor. The data reveal all six types of zone center optical phonons, along with their corresponding Davydov splittings, which have been challenging to see in other TMDCs. We discover that the anti-Stokes Raman intensity of the low energy layer-breathing mode becomes more intense than the Stokes peak under certain experimental conditions, and find the effect to be tunable by excitation frequency and number of atomic layers. These observations are interpreted as a result of resonance effects arising from the C excitons in the vicinity of the Brillouin zone center in t...
Layered transition metal dichalognides (TMDs) are being explored as next-generation electronic and o...
In this thesis the layered, two-dimensional material MoTe2 is examined experimentally for its optoel...
International audienceWe study experimentally and theoretically the exciton-phonon interaction in Mo...
<i>N</i>-layer transition metal dichalcogenides provide a unique platform to investigate the evoluti...
Two-dimensional layered crystals could show phonon properties that are markedly distinct from those ...
We report on Raman experiments performed on a MoTe2 single crystal. The system belongs to the wide f...
Charge carriers in semiconducting transition metal dichalcogenides possess a valley degree of freedo...
N-layer transition metal dichalcogenides provide a unique platform to investigate the evolution of t...
We report on Raman experiments performed on a MoTe2 single crystal. The system belongs to the wide f...
The two-fold valley degeneracy in two-dimensional (2D) semiconducting transition metal dichalcogenid...
Using resonant Raman scattering spectroscopy with 25 different laser lines, we describe the Raman sc...
: The coupling of the electron system to lattice vibrations and their time-dependent control and det...
The recently discovered two-dimensional (2D) semimetal 1T '-MoTe2 exhibits colossal magnetoresi...
Single- and few-layer MoS2 has recently gained attention as an interesting material system for opto-...
We have investigated the vibrational properties of van der Waals heterostructures of monolayer trans...
Layered transition metal dichalognides (TMDs) are being explored as next-generation electronic and o...
In this thesis the layered, two-dimensional material MoTe2 is examined experimentally for its optoel...
International audienceWe study experimentally and theoretically the exciton-phonon interaction in Mo...
<i>N</i>-layer transition metal dichalcogenides provide a unique platform to investigate the evoluti...
Two-dimensional layered crystals could show phonon properties that are markedly distinct from those ...
We report on Raman experiments performed on a MoTe2 single crystal. The system belongs to the wide f...
Charge carriers in semiconducting transition metal dichalcogenides possess a valley degree of freedo...
N-layer transition metal dichalcogenides provide a unique platform to investigate the evolution of t...
We report on Raman experiments performed on a MoTe2 single crystal. The system belongs to the wide f...
The two-fold valley degeneracy in two-dimensional (2D) semiconducting transition metal dichalcogenid...
Using resonant Raman scattering spectroscopy with 25 different laser lines, we describe the Raman sc...
: The coupling of the electron system to lattice vibrations and their time-dependent control and det...
The recently discovered two-dimensional (2D) semimetal 1T '-MoTe2 exhibits colossal magnetoresi...
Single- and few-layer MoS2 has recently gained attention as an interesting material system for opto-...
We have investigated the vibrational properties of van der Waals heterostructures of monolayer trans...
Layered transition metal dichalognides (TMDs) are being explored as next-generation electronic and o...
In this thesis the layered, two-dimensional material MoTe2 is examined experimentally for its optoel...
International audienceWe study experimentally and theoretically the exciton-phonon interaction in Mo...