This review explores structural anisotropy's impact on physical properties in 2D materials, highlighting unique optical behavior and magnetic arrangements.
Crystallographic anisotropy, be it inherent or externally induced, profoundly impacts the materials’ physical properties, contributing to their ground‐state morphology and magnetic arrangement and fostering distinctive optical behavior. Two‐dimensional (2D) materials provide a relatively non‐complex platform to study these anisotropy‐driven properties. This review explores the intricate relationship between structural anisotropy and the resulting physical phenomena in 2D materials, primarily focusing on 2D hybrid perovskites (2D HPs) and transition metal phosphorous trichalcogenides. Case studies of 2D PEA 2 PbI 4 HPs and FePS 3 are provided, explaining how intrinsic structural anisotropy originates and manifests as ground state polymorphism in 2D HPs and zigzag antiferromagnetic arrangement in FePS 3 . The case of alloyed MnPS 3 is examined, where extrinsically induced anisotropy induces magnetic disorder, impacting its magnetic phase stability and overall optical behavior. This account, thus, underscores the origin and significance of intrinsic and extrinsic anisotropy in manipulating materials’ properties.
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Sharma et al. (2025) studied this question.
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