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

Very weak bonds to artificial atoms formed by quantum corrals

Autor: Andreas Bereczuk, Fabian Stilp, Julian Berwanger, Nadine Mundigl, Franz J. Giessibl, Klaus Richter

Publikováno v: Science. 372:1196-1200

Bonding to a quantum corral Chemical bonds generally form between electronic states of atoms; in principle, other electronic states could also form bonds. Stilp et al. found that the electronic states created within quantum corrals, large rings of ir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46afd5f3f113c943c25d9f19b580dee1
https://doi.org/10.1126/science.abe2600

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

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

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

The quantum Hall (QH) effect, a topologically non-trivial quantum phase, expanded the concept of topological order in physics bringing into focus the intimate relation between the “bulk” topology and the edge states. The QH effect in graphene is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c1107fe8cefca4e99697afd45258384
https://epub.uni-regensburg.de/50973/

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
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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