Publications related to Strongly Coupled Coherent Phonons in Single-Layer MoS2

Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Magnetic skyrmions are whirl-like spin configurations with particle-like properties protected by non-trivial topology. Due to their unique spin structures and dynamical properties, they have attracted tremendous interests over the past decade, from fundame ...

EPFL2022

Atom-surface van der Waals potentials of topological insulators and semimetals from scattering measurements

Davide Campi

The phenomenology of resonant scattering has been known since the earliest experiments upon scattering of atomic beams from surfaces and is a means of obtaining experimental information about the fundamentals of weak adsorption systems in the van der Waals ...

2021

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Davide Campi

Closed-shell atoms scattered from a metal surface exchange energy and momentum with surface phonons mostly via the interposed surface valence electrons, i.e., via the creation of virtual electron-hole pairs. The latter can then decay into surface phonons v ...

2021

Edge-contact MoS2 transistors made by thermal scanning probe lithography

Jürgen Brugger, Giovanni Boero, Xia Liu, Ana Conde Rubio

Two-dimensional materials (2DM) have emerged as potential candidates for low power electronics, optoelectronics, and sensing [1]. However, the chemical and physical processes involved in conventional lithography methods, have shown detrimental effects on 2 ...

2021

State-to-state methane-surface scattering as a probe of catalytic activity

Rainer Beck, Maarten Eduard van Reijzen, Bo-Jung Chen, Jörn Werdecker

Quantum state-resolved scattering experiments for methane molecules colliding with a catalytically active nickel surface are compared to scattering from a nickel surface passivated by a single layer of graphene. The vibrational state distribution of the sc ...

2020

Vibrational Sum Frequency Scattering in Absorptive Media: A Theoretical Case Study of Nano-objects in Water

Sylvie Roke, Saranya Pullanchery Sankara Narayanan, Sergey Kulik

The structures of interfaces of nano- and microscale objects in an aqueous solution are important for a wide variety of physical, chemical, and biological processes. Vibrational sum frequency (SF) scattering has emerged as a useful and unique probe of the ...

AMER CHEMICAL SOC2020

Polaritonic Cross Feshbach Resonance

Daniel Oberli, Marcia Portella Oberli, Mitchell David Anderson, Naotomo Takemura, Morteza Navadeh Toupchi

We demonstrate the existence of a cross Feshbach resonance by strongly driving a lower polariton mode and by monitoring in time the transmission of a short optical pulse at the energy of the upper polariton mode in a semiconductor microcavity. From the sig ...

2019

Preparation and Decay of a Single Quantum of Vibration at Ambient Conditions

Christophe Marcel Georges Galland, Vivishek Sudhir, Mitchell David Anderson, Kilian Robert Seibold, Nils Kipfer

A single quantum of excitation of a mechanical oscillator is a textbook example of the principles of quantum physics. But mechanical oscillators, despite their pervasive presence in nature and modem technology, do not genetically exist in an excited Fock s ...

2019

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

Jörn Werdecker

This thesis presents a quantum-state-resolved molecular beam study of the non-reactive scattering of methane (CH4) from a Ni(111) surface. It is one of the first experimental investigations in which the internal quantum state distribution of a polyatomic m ...

EPFL2018

New Insights into the Verwey Transition in Magnetite

Simone Borroni

Magnetite (Fe

_3

O

_4

) is the first magnetic material discovered by mankind. Despite thousands of years of applications, from the magnetic compass to data storage, and decades of basic research, it remains among the most fascinating materials for physicis ...

EPFL2018

Strongly Coupled Coherent Phonons in Single-Layer MoS2

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Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Atom-surface van der Waals potentials of topological insulators and semimetals from scattering measurements

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Edge-contact MoS2 transistors made by thermal scanning probe lithography

State-to-state methane-surface scattering as a probe of catalytic activity

Vibrational Sum Frequency Scattering in Absorptive Media: A Theoretical Case Study of Nano-objects in Water

Polaritonic Cross Feshbach Resonance

Preparation and Decay of a Single Quantum of Vibration at Ambient Conditions

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

New Insights into the Verwey Transition in Magnetite

Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Atom-surface van der Waals potentials of topological insulators and semimetals from scattering measurements

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Edge-contact MoS2 transistors made by thermal scanning probe lithography

Polaritonic Cross Feshbach Resonance

Vibrational Sum Frequency Scattering in Absorptive Media: A Theoretical Case Study of Nano-objects in Water

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

Preparation and Decay of a Single Quantum of Vibration at Ambient Conditions

New Insights into the Verwey Transition in Magnetite

State-to-state methane-surface scattering as a probe of catalytic activity