Search: onr:"swepub:oai:research.chalmers.se:8db58308-35fe-4846-944b-5b0ff42162f4" >
Twist-tailoring Cou...
Twist-tailoring Coulomb correlations in van der Waals homobilayers
-
- Merkl, Philipp (author)
- Universität Regensburg,University of Regensburg
-
- Mooshammer, F. (author)
- Universität Regensburg,University of Regensburg
-
- Brem, Samuel, 1991 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Girnghuber, Anna (author)
- Universität Regensburg,University of Regensburg
-
- Lin, Kai Qiang (author)
- Universität Regensburg,University of Regensburg
-
- Weigl, Leonard (author)
- Universität Regensburg,University of Regensburg
-
- Liebich, Marlene (author)
- Universität Regensburg,University of Regensburg
-
- Yong, Chaw Keong (author)
- Universität Regensburg,University of Regensburg
-
- Gillen, Roland (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
-
- Maultzsch, Janina (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
-
- Lupton, J. M. (author)
- Universität Regensburg,University of Regensburg
-
- Malic, Ermin, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Huber, R. (author)
- Universität Regensburg,University of Regensburg
-
show less...
-
(creator_code:org_t)
- 2020-05-01
- 2020
- English.
-
In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723 .- 2041-1723. ; 11:1
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://www.nature.c...
-
https://research.cha...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The recent discovery of artificial phase transitions induced by stacking monolayer materials at magic twist angles represents a paradigm shift for solid state physics. Twist-induced changes of the single-particle band structure have been studied extensively, yet a precise understanding of the underlying Coulomb correlations has remained challenging. Here we reveal in experiment and theory, how the twist angle alone affects the Coulomb-induced internal structure and mutual interactions of excitons. In homobilayers of WSe2, we trace the internal 1s–2p resonance of excitons with phase-locked mid-infrared pulses as a function of the twist angle. Remarkably, the exciton binding energy is renormalized by up to a factor of two, their lifetime exhibits an enhancement by more than an order of magnitude, and the exciton-exciton interaction is widely tunable. Our work opens the possibility of tailoring quasiparticles in search of unexplored phases of matter in a broad range of van der Waals heterostructures.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Merkl, Philipp
-
Mooshammer, F.
-
Brem, Samuel, 19 ...
-
Girnghuber, Anna
-
Lin, Kai Qiang
-
Weigl, Leonard
-
show more...
-
Liebich, Marlene
-
Yong, Chaw Keong
-
Gillen, Roland
-
Maultzsch, Janin ...
-
Lupton, J. M.
-
Malic, Ermin, 19 ...
-
Huber, R.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Physical Chemist ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- Articles in the publication
-
Nature Communica ...
- By the university
-
Chalmers University of Technology