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Andreas V. Stier
Researcher at Technische Universität München
Publications - 83
Citations - 2982
Andreas V. Stier is an academic researcher from Technische Universität München. The author has contributed to research in topics: Exciton & Monolayer. The author has an hindex of 20, co-authored 59 publications receiving 2257 citations. Previous affiliations of Andreas V. Stier include Los Alamos National Laboratory & Johns Hopkins University.
Papers
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Journal ArticleDOI
Scaling law for excitons in 2D perovskite quantum wells.
Jean-Christophe Blancon,Andreas V. Stier,Hsinhan Tsai,Hsinhan Tsai,Wanyi Nie,Constantinos C. Stoumpos,Boubacar Traore,Laurent Pedesseau,Mikael Kepenekian,Fumiya Katsutani,G. T. Noe,Junichiro Kono,Sergei Tretiak,Scott A. Crooker,Claudine Katan,Mercouri G. Kanatzidis,Jared Crochet,Jacky Even,Aditya D. Mohite,Aditya D. Mohite +19 more
TL;DR: A general scaling law is proposed to determine the binding energy of excitons in perovskite quantum wells of any layer thickness to solve the fundamental questions concerning the nature of optical resonances and their scaling with quantum well thickness.
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Exciton diamagnetic shifts and valley Zeeman effects in monolayer WS2 and MoS2 to 65 Tesla.
TL;DR: Low-temperature polarized reflection spectroscopy of atomically thin WS2 and MoS2 in high magnetic fields to 65 T is reported, thereby quantifying the valley Zeeman effect in monolayer transition-metal disulphides.
Journal ArticleDOI
Probing the Influence of Dielectric Environment on Excitons in Monolayer WSe2: Insight from High Magnetic Fields.
TL;DR: The systematic increase of the exciton's size with dielectric screening, and concurrent reduction in binding energy (also inferred from these measurements), is quantitatively compared with leading theoretical models, and demonstrates how exciton properties can be tuned in future 2D optoelectronic devices.
Journal ArticleDOI
Magnetooptics of Exciton Rydberg States in a Monolayer Semiconductor.
Andreas V. Stier,Nathan P. Wilson,Kirill A. Velizhanin,Junichiro Kono,Xiaodong Xu,Scott A. Crooker +5 more
TL;DR: The strongly field-dependent and distinct energy shifts of the 2s, 3s, and 4s excited neutral excitons permits their unambiguous identification and allows for quantitative comparison with leading theoretical models.
Journal ArticleDOI
Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3.
R. Valdés Aguilar,Andreas V. Stier,Andreas V. Stier,Wei Liu,L. S. Bilbro,Deepu George,Namrata Bansal,Liang Wu,J. Cerne,Andrea Markelz,S. Oh,N. P. Armitage +11 more
TL;DR: The THz response of thin films of the topological insulator Bi2Se3 exhibit robust properties including narrow, almost thickness-independent Drude peaks, and an unprecedentedly large polarization rotation of linearly polarized light reflected in an applied magnetic field.