Evidence map›Paper›PMID 31594922›Full record

ArticleNature communications2019

Topological kink plasmons on magnetic-domain boundaries.

Dafei Jin, Yang Xia, Thomas Christensen, Matthew Freeman, Siqi Wang, King Yan Fong, Geoffrey C Gardner, Saeed Fallahi, Qing Hu, Yuan Wang and 5 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Dafei JinNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA.
Yang XiaNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA.ORCID http://orcid.org/0000-0002-2293-2867
Thomas ChristensenDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Matthew FreemanNational High Magnetic Field Laboratory, Tallahassee, FL, 32310, USA.
Siqi WangNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA.
King Yan FongNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA.
Geoffrey C GardnerMicrosoft Quantum Purdue and Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
Saeed FallahiDepartment of Physics and Astronomy and Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
Qing HuDepartment of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Yuan WangNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA.
Lloyd EngelNational High Magnetic Field Laboratory, Tallahassee, FL, 32310, USA.
Zhi-Li XiaoMaterial Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA.
Michael J ManfraMicrosoft Quantum Purdue, Department of Physics and Astronomy, Birck Nanotechnology Center, Schools of Electrical and Computer Engineering and Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.ORCID http://orcid.org/0000-0002-2049-8438
Nicholas X FangDepartment of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Xiang ZhangNanoscale Science and Engineering Center, University of California, Berkeley, CA, 94706, USA. xiang@berkeley.edu.ORCID http://orcid.org/0000-0002-3272-894X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two-dimensional topological materials bearing time reversal-breaking magnetic fields support protected one-way edge modes. Normally, these edge modes adhere to physical edges where material properties change abruptly. However, even in homogeneous materials, topology still permits a unique form of edge modes - kink modes - residing at the domain boundaries of magnetic fields within the materials. This scenario, despite being predicted in theory, has rarely been demonstrated experimentally. Here, we report our observation of topologically-protected high-frequency kink modes - kink magnetoplasmons (KMPs) - in a GaAs/AlGaAs two-dimensional electron gas (2DEG) system. These KMPs arise at a domain boundary projected from an externally-patterned magnetic field onto a uniform 2DEG. They propagate unidirectionally along the boundary, protected by a difference of gap Chern numbers ([Formula: see text]) in the two domains. They exhibit large tunability under an applied magnetic field or gate voltage, and clear signatures of nonreciprocity even under weak-coupling to evanescent photons.

Identifiers

PMID31594922
PMCPMC6783483

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