Solution Synthesis of NdTe3 Magnetic Nanosheets

Published

July 4, 2024

Author(s)

Joel Swanson, Salah El Jamal, Tyler Hartman, Orlando Stewart, Priscilla Glaser, Adam Biacchi, DaVonne Henry, Amy Liu, Sarah Stoll

Abstract

Neodymium tritelluride is a layered van der Waals material, with correlated electronic properties including high electronic mobility, charge density waves, and antiferromagnetism. We developed a solution synthesis method to form free standing nanosheets of NdTe3, with nanosheet lateral dimensions of 200-400 nm. The morphology of the nanosheet was influenced by the neodymium precursor. When Nd[(N(SiMe3)2]3 was used as the metal source the nanosheet thickness averages centered near 12±2.5 nm, alternatively the combination of NdCl3 and Li(N(SiMe3)2) led to thicker nanosheets, approximately 19±2.4 nm. The differences in nanosheet thickness suggest a change nanocrystal growth kinetics. We believe differences in surface chemistry point to the role of chloride in accelerating nanocrystal growth for the synthesis with NdCl3 (and Li(N(SiMe3)2). Both types of nanosheets exhibit charge density wave (CDW) distortions as measured using electron diffraction and an enhanced CDW ordering temperature based on variable temperature Raman scattering. Interestingly, the magnetic properties were distinct for each nanomaterial, with the thin sample exhibiting marked deviation from the antiferromagnetism found in the bulk.

Citation

Chemistry of Materials

Volume

36

Issue

14

Pub Type

Journals

Download Paper

https://doi.org/10.1021/acs.chemmater.4c01362

Local Download

Keywords

Lanthanide tritelluride, Nanosheets, Magnetism

Citation

Swanson, J. , El Jamal, S. , Hartman, T. , Stewart, O. , Glaser, P. , Biacchi, A. , Henry, D. , Liu, A. and Stoll, S. (2024), Solution Synthesis of NdTe3 Magnetic Nanosheets, Chemistry of Materials, [online], https://doi.org/10.1021/acs.chemmater.4c01362, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957572 (Accessed September 26, 2024)