Evidence map›Paper›PMID 41545698›Full record

ArticleNature nanotechnology2026

Excitonic negative refraction mediated by magnetic orders.

Jingwen Ma, Xiong Wang, Yuanhao Gong, Chong Hu, Qi Wang, Kai Feng, Zemeng Lin, Teruya Ishihara, Nicholas Fang, Xiaobo Yin and 5 more

Abstract read
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Article in Nature nanotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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.

Jingwen Ma *Department of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0001-5333-5451
Xiong Wang *Department of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0002-0677-7983
Yuanhao GongDepartment of Mechanical Engineering, The University of Hong Kong, Hong Kong, China.
Chong HuKey Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, China.ORCID http://orcid.org/0009-0001-1712-2229
Qi WangSchool of Electronic Science and Engineering (School of Microelectronics), South China Normal University, Foshan, China.
Kai FengDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.
Zemeng LinDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.
Teruya IshiharaDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0003-4270-9256
Nicholas FangDepartment of Mechanical Engineering, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0001-5713-629X
Xiaobo YinDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.
Shuang ZhangDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0003-4556-2333
Zuxin ChenSchool of Electronic Science and Engineering (School of Microelectronics), South China Normal University, Foshan, China. chenzuxin@m.scnu.edu.cn.ORCID http://orcid.org/0009-0000-7450-0620
Xiaoze LiuKey Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, China. xiaozeliu@whu.edu.cn.ORCID http://orcid.org/0000-0002-3586-6408
Xiaodong CuiDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0002-2013-8336
Xiang ZhangDepartment of Physics and State Key Laboratory of Optical Quantum Materials, The University of Hong Kong, Hong Kong, China. president@hku.hk.ORCID http://orcid.org/0000-0002-3272-894X

Funding

National Natural Science Foundation of China (National Science Foundation of China) 62104073National Natural Science Foundation of China (National Science Foundation of China) 62261160386
6 · The paper itself

Abstract

Excitons are prevalent in many bosonic quantum phenomena in semiconductors. During their optical transitions, excitons not only emit or absorb photons, but also determine light propagation behaviours within the host medium. While absorption and emission processes have found numerous practical applications, chiefly in light-emitting diodes and solar cells, excitons' capability of manipulating light propagation remains largely underexplored. Here we observe negative refraction-light bending in the opposite direction to conventional refraction-in an excitonic van der Waals magnet, namely chromium sulphide bromide (CrSBr). We also develop an excitonic hyperlens on an integrated nanophotonic chip, whose functionality is mediated by the magnetic orders of CrSBr. Specifically, the observed negative refraction and hyperlens effects emerge when CrSBr is magnetically ordered, driven by a magnetic enhancement of excitonic resonances. This work establishes excitons in van der Waals magnets as a versatile platform for controlling anomalous light propagation at the nanoscale.

Identifiers

PMID41545698

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