Facebook  

Back to top

Recherche avancée

Science & technologie , Formation continue & conférences

Physics Colloquium: Tunable electronic structure and correlations in quasi-freestanding MBE grown MoS2 and Ta2

Date(s)

-

Two dimensional layers of transition metal dichalcogenides are a playground for electronic structure physics, as the latter displays a great material dependent variety, is tunable by layer thickness as well as environment, and last but not least because correlations are strong due to the weak screening in 2D dimensions.
A two-step molecular beam epitaxy synthesis using graphene on Ir(111) as a substrate and with elemental sulfur enables the in situ growth of mono- and multilayers of the transition metal disulfides
MoS2, TaS2, WS2, Nb2, and VS2 in excellent quality. The cleanness and marginal substrate interaction makes it possible to conduct spatially resolved spectroscopy of layers in their pristine state with the scanning tunneling microscope.
We access new phenomena, otherwise hidden through the interaction with their environment. These include the realization of a Tomonaga-Luttinger liquid hosted by straight one-dimensional cavities provided by mirror twin boundaries in MoS2, quantization of the conduction band states due to band bending next to such mirror twin boundaries or near island edges, as well as a tuning of the charge density wave in TaS2 layers through doping and substrate interaction.

Biography:
Since 2006 Thomas Michely is professor for experimental physics at the II. Physikalisches Institut of the University Cologne. He is born 1961, studied physics and philosophy at the University Bonn, has been working at the Research Center Jülich (until 1997) and at RWTH Aachen (until 2006). He investigates growth, structure, defects and electronic properties of surfaces, clusters, and 2D-materials mainly with STM and related spectroscopy

Speaker: Thomas MICHELY

Média

Lieu

Université du Luxembourg - Campus Limpertsberg
162a avenue de la Faïencerie
1511 LUXEMBOURG
Luxembourg

Information de contact pour cet événement

Téléphone:
E-mail:
Internet:

Partager

Ajouter au calendrier

Physics Colloquium: Tunable electronic structure and correlations in quasi-freestanding MBE grown MoS2 and Ta2

-
Ajouter au calendrier 2020-04-01 16:00:00 2020-04-01 17:30:00 Physics Colloquium: Tunable electronic structure and correlations in quasi-freestanding MBE grown MoS2 and Ta2 Two dimensional layers of transition metal dichalcogenides are a playground for electronic structure physics, as the latter displays a great material dependent variety, is tunable by layer thickness as well as environment, and last but not least because correlations are strong due to the weak screening in 2D dimensions.A two-step molecular beam epitaxy synthesis using graphene on Ir(111) as a substrate and with elemental sulfur enables the in situ growth of mono- and multilayers of the transition metal disulfidesMoS2, TaS2, WS2, Nb2, and VS2 in excellent quality. The cleanness and marginal substrate interaction makes it possible to conduct spatially resolved spectroscopy of layers in their pristine state with the scanning tunneling microscope.We access new phenomena, otherwise hidden through the interaction with their environment. These include the realization of a Tomonaga-Luttinger liquid hosted by straight one-dimensional cavities provided by mirror twin boundaries in MoS2, quantization of the conduction band states due to band bending next to such mirror twin boundaries or near island edges, as well as a tuning of the charge density wave in TaS2 layers through doping and substrate interaction.Biography:Since 2006 Thomas Michely is professor for experimental physics at the II. Physikalisches Institut of the University Cologne. He is born 1961, studied physics and philosophy at the University Bonn, has been working at the Research Center Jülich (until 1997) and at RWTH Aachen (until 2006). He investigates growth, structure, defects and electronic properties of surfaces, clusters, and 2D-materials mainly with STM and related spectroscopySpeaker: Thomas MICHELY Université du Luxembourg - Campus Limpertsberg UTC public
Organisation

Mots clés

Université du Luxembourg - Campus Limpertsberg

Vous pourriez aimer également...

Science & technologie, Formation continue & conférences
-
Musée national d'histoire naturelle - 'natur musée'
LUXEMBOURG
Science & technologie, Formation continue & conférences
-
Centre d'accueil Ellergronn
ESCH-SUR-ALZETTE
Science & technologie, Formation continue & conférences
-
Musée national d'histoire naturelle - 'natur musée'
LUXEMBOURG

#BLEIFTDOHEEM
RESTEZ À LA MAISON

Suite aux directives gouvernementales dans la lutte contre la propagation du virus COVID-19, Events in Luxembourg n’affiche plus d’événements pour le mois de mars 2020.

Pour toutes questions concernant des événements en particulier, veuillez directement contacter les organisateurs concernés.