Evidence map›Paper›PMID 39587131›Full record

ArticleNature communications2024

Switchable planar chirality and spin texture in highly ordered ferroelectric hybrid perovskite domains.

Chuanzhao Li, Mykola Telychko, Yue Zheng, Shurong Yuan, Zhenyue Wu, Walter P D Wong, Yixin Li, Yuanyuan Jin, Weng Fu Io, Xinyun Wang and 4 more

Abstract read
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In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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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

14 authors.

Chuanzhao Li *Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Mykola Telychko *Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA.
Yue Zheng *State Key Laboratory of Radio Frequency Heterogeneous Integration, and International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China.
Shurong YuanDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Zhenyue WuDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Walter P D WongDepartment of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
Yixin LiDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.ORCID http://orcid.org/0009-0008-8331-2531
Yuanyuan JinDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Weng Fu IoDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Xinyun WangDepartment of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
Junhao LinDepartment of Physics and Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen, China.ORCID http://orcid.org/0000-0002-2195-2823
Jianhua HaoDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.ORCID http://orcid.org/0000-0002-6186-5169
Cheng HanState Key Laboratory of Radio Frequency Heterogeneous Integration, and International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China. hancheng@szu.edu.cn.ORCID http://orcid.org/0000-0002-4841-9287
Kai LengDepartment of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China. kathy-kai.leng@polyu.edu.hk.ORCID http://orcid.org/0000-0003-3408-5033

Funding

Croucher Foundation Croucher Tak Wah Mak Innovation fund 2023National Natural Science Foundation of China (National Science Foundation of China) Project 62322413
6 · The paper itself

Abstract

Chiral organic-inorganic hybrid perovskites offer a promising platform for developing non-linear chiro-optical applications and chiral-induced spin selectivity. Here, we show that achiral hybrid perovskites that have highly ordered ferroelectric domains with orthogonal polarization exhibit planar chirality, as manifested by second harmonic generation with strong circular dichroism. Interestingly, the handedness of the second harmonic generation circular dichroism response can be alternatingly switched between orthogonally polarized domains and domain walls. To correlate the origin of planar chirality in these domains, atom-resolved atomic force microscopy is used to reveal distinct arrangements of atomic rows in these ferroelectric crystals that indicate planar symmetry breaking. Remarkably, a large SHG anisotropy factor of 0.41 is measured at the domain wall. Additionally, spatially resolved two-photon photoluminescence excitation measurement provide evidence of larger Rashba spin-splitting in these chiral ferroelectric domains compared to domain-free areas. Our discoveries of domain-dependent planar chirality and spin texture hold great promise for advancement of domain-specific chiro-optical applications.

Identifiers

PMID39587131
PMCPMC11589847

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