Yinchang Ma

Editor’s summary Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share Editor’s summary Making two-dimensional (2D) multiferroics, materials that host both ferromagnetic and ferroelectric orders, is technologically challenging because thinning bulk materials results in defects and degradation of functional properties.

Yinchang Ma, Yuan Yan, and Tao Yang contributed equally to this work. Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description adma74102-sup-0001-SuppMat.docx5.4 MB Supporting File: adma74102-sup-0001-SuppMat.docx.

Abstract Phase engineering of two-dimensional van der Waals materials offer a rich landscape to uncover the potential ferroelectric properties. The precisely controlling phases in these reduced dimensional materials with the unique atomic arrangement are crucial. Herein, through a novel phase engineering approach, we synthesize CuInP2(S1-xSex)6 crystal with controllable coexistence of monoclinic and trigonal phases, and experimentally realize relaxor ferroelectricity in low-dimensional materials.