Edge channels of broken-symmetry quantum Hall states in graphene visualized by atomic force microscopy

Autor: Sungmin Kim, Johannes Schwenk, Daniel Walkup, Yihang Zeng, Fereshte Ghahari, Son T. Le, Marlou R. Slot, Julian Berwanger, Steven R. Blankenship, Kenji Watanabe, Takashi Taniguchi, Franz J. Giessibl, Nikolai B. Zhitenev, Cory R. Dean, Joseph A. Stroscio

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)

The broken-symmetry edge states that are the hallmark of the quantum Hall effect in graphene have eluded spatial measurements. Here, the authors spatially map the quantum Hall broken-symmetry edge states using atomic force microscopy and show a gappe

Externí odkaz: https://doaj.org/article/70a4506794bf46e9b75e9f7d3c4929bb

Chemical bond formation showing a transition from physisorption to chemisorption

Autor: Franz J. Giessibl, Sergiy Mankovsky, Julian Berwanger, Hubert Ebert, S. Polesya, Ferdinand Huber

Publikováno v: Science. 366:235-238

Imaging a chemisorption process At low temperatures, a molecule may adsorb to a surface only through weak forces (physisorption), and only upon heating and overcoming an energetic barrier does it form a strong covalent bond (chemisorption). Huber et

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf84cb2147bb603f0ec48a501508ecbf
https://doi.org/10.1126/science.aay3444

Response of the topological surface state to surface disorder in TlBiSe2

Autor: Florian Pielmeier, Gabriel Landolt, Bartosz Slomski, Stefan Muff, Julian Berwanger, Andreas Eich, Alexander A Khajetoorians, Jens Wiebe, Ziya S Aliev, Mahammad B Babanly, Roland Wiesendanger, Jürg Osterwalder, Evgueni V Chulkov, Franz J Giessibl, J Hugo Dil

Publikováno v: New Journal of Physics, Vol 17, Iss 2, p 023067 (2015)

Through a combination of experimental techniques we show that the topmost layer of the topological insulator TlBiSe _2 as prepared by cleavage is formed by irregularly shaped Tl islands at cryogenic temperatures and by mobile Tl atoms at room tempera

Externí odkaz: https://doaj.org/article/fa2fed011b6d44cd9ac96ddecd664cb2

Achieving μeV tunneling resolution in an in-operando scanning tunneling microscopy, atomic force microscopy, and magnetotransport system for quantum materials research

Autor: Franz J. Giessibl, Daniel Walkup, Marlou R. Slot, Son T. Le, Steven R. Blankenship, Joseph A. Stroscio, Young Kuk, Sungmin Kim, Julian Berwanger, Johannes Schwenk, William G. Cullen, Hans J. Hug, Sasa Vranjkovic, Fereshte Ghahari

Publikováno v: Rev Sci Instrum

Research in new quantum materials requires multi-mode measurements spanning length scales, correlations of atomic-scale variables with macroscopic function, and spectroscopic energy resolution obtainable only at millikelvin temperatures, typically in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd6f2261ff2ea5086967e0d35f40293d
https://doi.org/10.1063/5.0005320

Response of the topological surface state to surface disorder in TlBiSe2

Autor: Bartosz Slomski, Evgeniy V. Chulkov, Jens Wiebe, Ziya S. Aliev, Florian Pielmeier, Julian Berwanger, Jürg Osterwalder, Stefan Muff, Gabriel Landolt, Alexander A. Khajetoorians, Mahammad B. Babanly, Roland Wiesendanger, J. Hugo Dil, Franz J. Giessibl, Andreas Eich

Publikováno v: New Journal of Physics, 17
Digital.CSIC. Repositorio Institucional del CSIC
instname
Addi. Archivo Digital para la Docencia y la Investigación
NEW JOURNAL OF PHYSICS

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.-- et al.
Through a combination of experimental techniques we show that the topmost layer of the topological insulator TlBiSe2 as prepared by clea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7951ea2eb0ccc851396ab2af17395335
http://hdl.handle.net/2066/149788