Výsledky vyhledávání - "Jonas Kiemle"

Akademický článek

The Anomalous Photo‐Nernst Effect of Massive Dirac Fermions In HfTe5

Autor: Maanwinder P. Singh, Jonas Kiemle, Chen Xu, Waldemar Schmunk, Qingxin Dong, Genfu Chen, Tobias Meng, Christoph Kastl

Publikováno v: Advanced Physics Research, Vol 3, Iss 3, Pp n/a-n/a (2024)

Abstract The quantum geometric Berry curvature results in an anomalous correction to the band velocity of crystal electrons with a corresponding transverse (thermo)electric conductivity. However, time‐reversal symmetry typically constrains the dire

Externí odkaz: https://doaj.org/article/f73454272a9f4df79f6d9257965e0f62

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Akademický článek

Berry curvature-induced local spin polarisation in gated graphene/WTe2 heterostructures

Autor: Lukas Powalla, Jonas Kiemle, Elio J. König, Andreas P. Schnyder, Johannes Knolle, Klaus Kern, Alexander Holleitner, Christoph Kastl, Marko Burghard

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)

Spin-based electronics offers significantly improved efficiency, but a major challenge is the electric manipulation of spin. Here, Powalla et al find a large gate induced spinpolarization in graphene/WTe2 heterostructures, illustrating the potential

Externí odkaz: https://doaj.org/article/8d3c21d8feb3436b8eebbec8befa9d33

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Akademický článek

The role of chalcogen vacancies for atomic defect emission in MoS2

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)

The relation between the microscopic structure and the optical properties of atomic defects in 2D semiconductors is still debated. Here, the authors correlate different fabrication processes, optical spectroscopy and electron microscopy to identify t

Externí odkaz: https://doaj.org/article/5b43e38fa43c425488c2818921e8dea0

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Akademický článek

Signatures of a degenerate many-body state of interlayer excitons in a van der Waals heterostack

Autor: Lukas Sigl, Florian Sigger, Fabian Kronowetter, Jonas Kiemle, Julian Klein, Kenji Watanabe, Takashi Taniguchi, Jonathan J. Finley, Ursula Wurstbauer, Alexander W. Holleitner

Publikováno v: Physical Review Research, Vol 2, Iss 4, p 042044 (2020)

Atomistic van der Waals heterostacks are ideal systems for high-temperature exciton condensation because of large exciton binding energies and long lifetimes. Charge transport and electron energy-loss spectroscopy showed first evidence of excitonic m

Externí odkaz: https://doaj.org/article/1d9ca52ecdd54195b144c272de7d4a40

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Ultra-Sensitive Extinction Measurements of Optically Active Defects in Monolayer MoS2

Autor: Florian Sigger, Ines Amersdorffer, Alexander Hötger, Manuel Nutz, Jonas Kiemle, Takashi Taniguchi, Kenji Watanabe, Michael Förg, Jonathan Noe, Jonathan J. Finley, Alexander Högele, Alexander W. Holleitner, Thomas Hümmer, David Hunger, Christoph Kastl

Publikováno v: The Journal of Physical Chemistry Letters, 13, 10291–10296

We utilize cavity-enhanced extinction spectroscopy to directly quantify the optical absorption of defects in MoS$_2$ generated by helium ion bombardment. We achieve hyperspectral imaging of specific defect patterns with a detection limit below 0.01%

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6868da888fc6f527388c71876382bbc
https://doi.org/10.1021/acs.jpclett.2c02386

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Photophysics and Electronic Structure of Lateral Graphene/MoS2 and Metal/MoS2 Junctions

Publikováno v: ACS Nano. 14:16663-16671

Integration of semiconducting transition metal dichalcogenides (TMDs) into functional optoelectronic circuitries requires an understanding of the charge transfer across the interface between the TMD and the contacting material. Here, we use spatially

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbe78589da9d2ea0594d6eb67885ffef
https://doi.org/10.1021/acsnano.0c02527

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Berry curvature-induced local spin polarisation in gated graphene/WTe

Autor: Lukas, Powalla, Jonas, Kiemle, Elio J, König, Andreas P, Schnyder, Johannes, Knolle, Klaus, Kern, Alexander, Holleitner, Christoph, Kastl, Marko, Burghard

Publikováno v: Nature communications. 13(1)

Experimental control of local spin-charge interconversion is of primary interest for spintronics. Van der Waals (vdW) heterostructures combining graphene with a strongly spin-orbit coupled two-dimensional (2D) material enable such functionality by de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::629c56f3dd2689211e9fd4c52f97d9db
https://pubmed.ncbi.nlm.nih.gov/35672292

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Berry curvature-induced local spin polarisation in gated graphene/WTe$_2$ heterostructures

Autor: Lukas Powalla, Jonas Kiemle, Elio J. König, Andreas P. Schnyder, Johannes Knolle, Klaus Kern, Alexander Holleitner, Christoph Kastl, Marko Burghard

Full experimental control of local spin-charge interconversion is of primary interest for spintronics. Heterostructures combining graphene with a strongly spin-orbit coupled two-dimensional (2D) material enable such functionality by design. Electric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::540bee7611aaf5d8e7ef818e4d61ae8d

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