多铁性
铁电性
反铁磁性
凝聚态物理
二次谐波产生
材料科学
范德瓦尔斯力
极化(电化学)
核磁共振
纳米技术
光学
物理
光电子学
化学
量子力学
分子
电介质
激光器
物理化学
作者
Yucheng Jiang,Yangliu Wu,Jinlei Zhang,Jingxuan Wei,Bo Peng,Cheng‐Wei Qiu
出处
期刊:Nature
[Springer Nature]
日期:2023-07-19
卷期号:619 (7970): E40-E43
被引量:3
标识
DOI:10.1038/s41586-023-06107-3
摘要
Matters Arising in Nature on "Evidence for a single layer van der Waals multiferroic". The search for two dimensional multiferroic materials is an exciting yet challenging endeavor. Recently, Song reported the exciting discovery of type II multiferroic order in an antiferromagnetic (AFM) NiI2 single layer and concluded the ferroelectric (FE) polarization induced by a helical magnetic order1. Their finding was presented from all optical experimental evidence, based on the methods of second harmonic generation (SHG) and linear dichroism (LD). However, the all optical characterizations cannot serve as unanimous evidence of the FE existence, particularly in conjunction with magnetic orders in a single layer NiI2 multiferroic. We have designed and built a Magneto-Optical-Electric Joint-measurement Scanning Imaging system (MOEJSI) for identification of two-dimensional vdW multiferroic.
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