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Evidence of a magnetic transition in atomically thin Cr2TiC2Tx MXene (Electronic supplementary information (ESI) available. See DOI: 10.1039/d0nh00343c)
Journal article   Open access

Evidence of a magnetic transition in atomically thin Cr2TiC2Tx MXene (Electronic supplementary information (ESI) available. See DOI: 10.1039/d0nh00343c)

Kanit Hantanasirisakul, Babak Anasori, Slavomir Nemsak, James L Hart, Jiabin Wu, Yizhou Yang, Rajesh V Chopdekar, Padraic Shafer, Andrew F May, Eun Ju Moon, …
Nanoscale horizons, v 5(12), pp 1557-1565
01 Jan 2020
DOI: https://doi.org/10.1039/d0nh00343c
url
https://www.osti.gov/biblio/1731034View
SubmittedOpen Access (License Unspecified),  Open

Abstract

Electronic properties Transition metals Two dimensional models Magnetic transitions Magnetic measurement Synchrotrons Metal carbides Magnetoresistivity Optical properties Dichroism Magnetism Magnetic materials Two dimensional materials Magnetoresistance Synchrotron radiation Magnetic properties
Two-dimensional (2D) transition metal carbides and nitrides known as MXenes have shown attractive functionalities such as high electronic conductivity, a wide range of optical properties, versatile transition metal and surface chemistry, and solution processability. Although extensively studied computationally, the magnetic properties of this large family of 2D materials await experimental exploration. 2D magnetic materials have recently attracted significant interest as model systems to understand low-dimensional magnetism and for potential spintronic applications. Here, we report on synthesis of Cr2TiC2Tx MXene and a detailed study of its magnetic as well as electronic properties. Using a combination of magnetometry, synchrotron X-ray linear dichroism, and field- and angular-dependent magnetoresistance measurements, we find clear evidence of a magnetic transition in Cr2TiC2Tx at approximately 30 K, which is not present in its bulk layered carbide counterpart (Cr2TiAlC2 MAX phase). This work presents the first experimental evidence of a magnetic transition in a MXene material and provides an exciting opportunity to explore magnetism in this large family of 2D materials.

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Domestic collaboration
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Chemistry, Physical
Materials Science, Multidisciplinary
Nanoscience & Nanotechnology
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