Printable and Antiferromagnetic Mn(OH)2@Te–O Core–Shell Nanosheets
Fang Yuan, Jiaze Xie, Ratnadwip Singha, Christie S. Koay, Sigalit Aharon, Guangming Cheng, Brianna L. Hoff, Vojtech Kundrat, Xiaoyu Song, Sudipta Chatterjee, Lothar Houben, Jakub Zalesak, Nan Yao, Leslie M. Schoop
TL;DR
Researchers developed a one-step method to create printable, antiferromagnetic core-shell nanosheets with potential for electronic applications.
Contribution
A one-step chemical exfoliation method to produce Mn(OH)₂@Te–O core–shell nanosheets with antiferromagnetic and printable properties.
Findings
Few-layer crystalline Mn(OH)₂ cores are encapsulated by amorphous Te–O shells.
The nanosheets exhibit antiferromagnetic ordering and can be deposited on various substrates.
The resulting films show resistances in the megaohm range at room temperature.
Abstract
Core–shell nanomaterials provide a versatile platform for tuning physical properties and integrating complementary functionalities in nanoscale systems, but their synthesis often requires multistep procedures and precise control over composition, morphology, and interfaces. Achieving core–shell architectures in nanosheets is particularly challenging due to the difficulty of controlling growth direction and interfacial formation. Here, we describe a one-step chemical exfoliation process that produces core–shell nanosheets from the highly air-sensitive compound Li1+x MnTe2. Brief sonication in Milli-Q water under ambient conditions yields a dark gray suspension of nanosheets within 10 min, which remains stable in air for at least 31 days. Powder X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, inductively coupled plasma–optical emission…
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Taxonomy
TopicsMultiferroics and related materials · Transition Metal Oxide Nanomaterials · Magnetic Properties and Synthesis of Ferrites