Walter Schottky Institute
Center for Nanotechnology and Nanomaterials

Topological Electronics and Materials - Publications
Group leader: Dr. Christoph Kastl


Anharmonic Exciton‐Phonon Coupling in Metal‐Organic Chalcogenides Hybrid Quantum Wells
Advanced Optical Materials 11, 2202213 (2023)
C. Kastl, P. Bonfà, L. Maserati
Online Ref
The Anomalous Photo‐Nernst Effect of Massive Dirac Fermions In HfTe5
Advanced Physics Research, 2300099 (2023)
M. Singh, J.Kiemle, C. Xu, W. Schmunk, Q. Dong, G. Chen, T. Meng, C. Kastl
Online Ref
Photovoltage and photocurrent absorption spectra of sulfur vacancies locally patterned in monolayer MoS2
Nano Letters 23, 11655 (2023)
A. Hötger, W. Männer, T. Amit, D. Hernangómez-Pérez, T. Taniguchi , K. Watanabe, U. Wurstbauer, J.J. Finley, S. Refaely-Abramson, C. Kastl, A. Holleitner
Online Ref
Combining experiments on luminescent centres in hexagonal boron nitride with the polaron model and ab initio methods towards the identification of their microscopic origin
Nanoscale 15, 14215 (2023)
M. Fischer, A. Sajid, J. Iles-Smith, A. Hötger, D. I. Miakota, M.K. Svendsen, C. Kastl, S. Canulescu, S. Xiao, M. Wubs, K.S. Thygesen, A.W. Holleitner, N. Stenger
Online Ref
Spin-defect characteristics of single sulfur vacancies in monolayer MoS2
npj 2D materials and applications 7, 30 (2023)
A. Hötger, T. Amit, J. Klein, K. Barthelmi, T. Pelini, A. Delhomme, S. Rey, M. Potemski, C. Faugeras, G. Cohen, D. Hernangomez-Perez, T. Taniguchi, K. Watanabe, C. Kastl, J.J. Finley, S. Refaely-Abramson, A.W. Holleitner, A.V. Stier
Online Ref
Ultra-Sensitive Extinction Measurements of Optically Active Defects in Monolayer MoS2
The Journal of Physical Chemistry Letters 13, 10291 (2022)
F. Sigger, I. Amersdorffer, A. Hötger, M. Nutz, J. Kiemle, T. Taniguchi, K. Watanabe, M. Förg, J. Noe, J.J. Finley, A. Högele, A. Holleitner, T. Hümmer, D. Hunger, C. Kastl
Online Ref
On-demand generation of optically active defects in monolayer WS2 by a focused helium ion beam
Appl. Phys. Lett. 121, 183101 (2022)
A. Micevic, N. Pettinger, A. Hötger, M. Florian, T. Taniguchi, K. Watanabe, K. Müller, J.J. Finley, C. Kastl, A.W. Holleitner
Online Ref
Picoseconds-Limited Exciton Recombination in Metal–Organic Chalcogenides Hybrid Quantum Wells
ACS Nano 16, 3715–3722 (2022)
C. Kastl, A. Schwartzberg, L. Maserati
Online Ref
Thickness and defect dependent electronic, optical and thermoelectric features of WTe2
Scientific Reports 12, 12756 (2022)
I. Ozdemir, A. Holleitner, C. Kastl, O. Ü. Aktürk
Online Ref
Gate-Tunable Helical Currents in Commensurate Topological Insulator/Graphene Heterostructures
ACS Nano 16, 12338 (2022)
J. Kiemle, L. Powalla, K. Polyudov, L. Gulati, M. Singh, A. Holleitner, M. Burghard, C. Kastl,
Online Ref
Berry curvature-induced local spin polarisation in gated graphene/WTe2 heterostructures
Nature Comm 13, 3152 (2022)
L. Powalla, J. Kiemle, E. J. König, A. P. Schnyder, J. Knolle , K. Kern, A.W. Holleitner, C. Kastl, M. Burghard
Online Ref
Defect-engineered magnetic field dependent optoelectronics of vanadium doped tungsten diselenide monolayers
Advanced Optical Materials 10, 2102711 (2022)
K. Nisi, J. Kiemle, L. Powalla, A. Scavuzzo, T. Dung Nguyen, T. Taniguchi, K. Watanabe, D. Loc Duong, M. Burghard, A.W. Holleitner, C. Kastl
Online Ref
Impact of domain disorder on optoelectronic properties of layered semimetal MoTe2
2D Materials 9, 011002 (2021)
M. Singh, J. Kiemle, I. Ozdemir, P. Zimmermann, T. Taniguchi, K. Watanabe, M. Burghard, O. Üzengi Aktürk, C. Kastl, A. W. Holleitner
Online Ref
The role of chalcogen vacancies for atomic defect emission in MoS2
Nature Communications 12, 3822 (2021)
E. Mitterreiter, B. Schuler, A. Micevic, D. Hernangómez-Pérez, K. Barthelmi, K. A. Cochrane, J. Kiemle, J. Klein, E. Wong, E. S. Barnard, M. Lorke, F. Jahnke, K. Watanabe, T. Taniguchi, J. J. Finley, A. M. Schwartzberg, D. Y. Qiu, S. Refaely-Abramson, A.W. Holleitner, A. Weber-Bargioni, C. Kastl
Online Ref
Gate-switchable arrays of quantum light emitters in contacted monolayer MoS2 van der Waals heterodevices
Nano Letters 21, 1040 (2021)
A. Hötger, J. Klein, K. Barthelmi, L. Sigl, F. Sigger, W. Männer, S. Gyger, M. Florian, M. Lorke, F. Jahnke, T. Taniguchi, K. Watanabe, K. D. Jöns, U. Wurstbauer, C. Kastl, K. Müller, J. J. Finley, A.W. Holleitner
Online Ref
Engineering the luminescence and generation of individual defect emitters in atomically thin MoS2
ACS Photonics 8, 669 (2021)
J. Klein, L. Sigl, S. Gyger, K. Barthelmi, M. Florian, S. Rey, T. Taniguchi, K. Watanabe, F. Jahnke, C. Kastl, V. Zwiller, K.D. Jöns, K. Mueller, U. Wurstbauer, J. Finley, A.W. Holleitner
Online Ref
Structuring Semiconductor Materials with Atomic Precision
Zeiss Microscopy November 2 (2020)
E. Mitterreiter, C. Kastl, A.W. Holleitner
Online Ref
Atomistic Positioning of Defects in Helium Ion Treated Single-Layer MoS2
Nano Letters 20, 4437 (2020)
E. Mitterreiter, B. Schuler, K. A. Cochrane, U. Wurstbauer, A. Weber-Bargioni, C. Kastl, A.W. Holleitner
Online Ref
Atomistic defects as single-photon emitters in atomically thin MoS2
APL Perspective 117, 070501 (2020)
K. Barthelmi, J. Klein, A. Hötger, L. Sigl, F. Sigger, E. Mitterreiter, S. Rey, S. Gyger, M. Lorke, M. Florian, F. Jahnke, T. Taniguchi, K. Watanabe, V. Zwiller, K.D. Jöns, U. Wurstbauer, C. Kastl, A. Weber-Bargioni, J.J. Finley, K. Müller, A.W. Holleitner
Online Ref
Anisotropic 2D Excitons Unveiled in Organic-Inorganic Quantum Wells
Materials Horizon (2020)
L. Maserati, S. Refaely-Abramson, C. Kastl, C. T. Chen, N. Borys, C. N. Eisler, M. S. Collins, T. E. Smidt, E. S. Barnard, M. Strasbourg, B. Shevitski, K. Yao, E. A. Schriber, J. N. Hohman, P. J. Schuck, S. Aloni, J. Neaton, A. M. Schwartzberg
Online Ref
Light-field and spin-orbit-driven currents in van der Waals materials
Nanophotonics 9, 2693 (2020)
J. Kiemle, P. Zimmermann, A.W. Holleitner, C. Kastl
Online Ref
Ultrafast and Local Optoelectronic Transport in Topological Insulators
Physica Status Solidi (b) 258, 2000033 (2020)
J. Kiemle, P. Seifert, A. W. Holleitner, C. Kastl
Online Ref
Large Spin-Orbit Splitting of Deep In-Gap Defect States of Engineered Sulfur Vacancies in Monolayer WS2
Phys. Rev. Lett. 123, 076801 (2019)
B. Schuler, D. Y. Qiu, S. Refaely-Abramson, C. Kastl, C.T. Chen, S. Barja, R. J. Koch, D. F. Ogletree, S. Aloni, A. M. Schwartzberg, J. B. Neaton, S. G. Louie, A. Weber-Bargioni
Online Ref
How Substitutional Point Defects in Two-Dimensional WS2 Induce Charge Localization, Spin-Orbit Splitting, and Strain
ACS nano (2019)
B. Schuler, J. Lee, C. Kastl, K. A. Cochrane, C. T. Chen, S. Refaely-Abramson, S. Yuan, E. van Veen, R. Roldan, N. J. Borys, R. J. Koch, S. Aloni, A. M. Schwartzberg, D. F. Ogletree, J. B. Neaton, A.Weber-Bargioni
Online Ref
Identifying substitutional oxygen as a prolific point defect in monolayer transition metal dichalcogenides
Nature Communications 10, 3382 (2019)
S. Barja, S. Refaely-Abramson, B. Schuler, D. Y. Qiu, A. Pulkin, S. Wickenburg, H. Ryu, M. M. Ugeda, C. Kastl, C. Chen, C. Hwang, A. Schwartzberg, S. Aloni, S.-K. Mo, D. F. Ogletree, M. F. Crommie, O. V. Yazyev, S. G. Louie, J. B. Neaton, A. Weber-Bargioni
Online Ref
Quantized Conductance in Topological Insulators Revealed by the Shockley-Ramo Theorem
Phys. Rev. Lett. 122, 146804 (2019)
P. Seifert, M. Kundinger, G. Shi, X. He, K. Wu, Y. Li, A.W. Holleitner, C. Kastl
Online Ref
In-plane anisotropy of the photon-helicity induced linear Hall effect in few-layer WTe2
Physical Review B 99, 161403 (R) (2019)
P. Seifert, F. Sigger, J. Kiemle, K. Watanabe, T. Taniguchi, C. Kastl, U. Wurstbauer, A.W. Holleitner
Online Ref
Disentangling the role of surface chemical interactions on interfacial charge transport at BiVO4 photoanodes
ACS Appl. Mater. Interf. 10, 35129 (2018)
J. Eichhorn, C. Kastl, A.M. Schwartzberg, I.D. Sharp, F.M. Toma
Online Ref
Nanoscale imaging of charge carrier transport limitations in BiVO4 photoanodes
Nature Communications 9, 2597 (2018)
J. Eichhorn, C. Kastl, J.K. Cooper, D. Ziegler, A.M. Schwartzberg, I.D. Sharp, F.M. Toma
Material aspects of 3D topological insulators
Encyclopedia of Interfacial Chemistry, 1st Edition (2017)
P. Seifert, C. Kastl, A. Holleitner
Online Ref
Optoelectronics of topological surfaces
Encyclopedia of Interfacial Chemistry, 1st Edition (2017)
P. Seifert, C. Kastl, A. Holleitner
Online Ref
Symmetry and toplogy concepts
Encyclopedia of Interfacial Chemistry, 1st Edition (2017)
P. Seifert, C. Kastl, A. Holleitner
Online Ref
Topological Insulators as Ultrafast Auston Switches in On-Chip THz-Circuits
IEEE J. Sel. topics Quantum Electron. 23, 8700305 (2017)
C. Kastl, C. Karnetzky, A. Brenneis, F. Langrieger, A. Holleitner
Online Ref
Quantized one-dimensional edge channels with strong spin-orbit coupling in 3D topological insulators
No Reference given. (2015)
C. Kastl, P. Seifert, X. He, K. Wu, Y. Li, A. Holleitner
Online Ref
Ultrafast helicity control of surface currents in topological insulators with near-unity fidelity
Nature Communications 6, 6617 (2015)
C. Kastl, C. Karnetzky, H. Karl, A. Holleitner
Online Ref
Chemical Potential Fluctuations in Topological Insulator BiSbTe Films Visualized by Photocurrent Spectroscopy
2D Materials 2 (2015)
C. Kastl, P. Seifert, X. He, K. Wu, Y. Li, A. Holleitner
Online Ref
Optoelectronic transport through quantum Hall edge states
New Journal of Physics 17, 23007 (2015)
C. Kastl, M. Stallhofer, D. Schuh, W. Wegscheider, A. Holleitner
Online Ref
Enlarged magnetic focusing radius of photoinduced ballistic currents
Phys. Rev. B 86, 115315 (2012)
M. Stallhofer, C. Kastl, M. Brändlein, D. Schuh, W. Wegscheider, J. Kotthaus, G. Abstreiter, A. Holleitner
Online Ref
Local photocurrent generation in thin films of the topological insulator Bi2Se3
Applied Physics Letters 101, 251110 (2012)
C. Kastl, T. Guan, X. Y. He, K. H. Wu, Y. Q. Li, A. Holleitner
Online Ref
Propagation length of mesoscopic photocurrents in a two-dimensional electron gas
Phys. Rev. B 86, 115313 (2012)
M. Stallhofer, C. Kastl, M. Brändlein, C. Karnetzky, D. Schuh, W. Wegscheider, A. Holleitner
Online Ref

Walter Schottky Institut About the Institute Research

Technische Universität München Annual Reports Photonics & Optoelectronics
Am Coulombwall 4 Events and News Quantum Technologies
D-85748 Garching History of WSI Energy Materials
Germany How to get to WSI Engineered Nanomaterials
Scientific Background Functional Interfaces
Tel: +49-(0)89-289-12761 Seminars Nanofabrication
Fax: +49-(0)89-289-12737 The WSI in Numbers

Partners Publications
(c) 2018 Walter Schottky Institut WSI Association


Walter Schottky Institut Navigation

Technische Universität München Contact
Am Coulombwall 4 Groups
D-85748 Garching Institute
Germany Partners
Tel: +49-(0)89-289-12761 Research
Fax: +49-(0)89-289-12737 Groups
(c) 2018 Walter Schottky Institut