Bulletin of the American Physical Society
Joint Fall 2022 Meeting of the Texas Section of the APS, Texas Section of the AAPT, and Zone 13 of the SPS
Volume 67, Number 11
Thursday–Saturday, October 13–15, 2022; Rice University, Houston, Texas
Session L06: Applied Physics and Engineering
10:30 AM–11:42 AM,
Saturday, October 15, 2022
Rice University BRC
Room: 285
Chair: Han Pu, Rice University
Abstract: L06.00006 : Enhanced Ferromagnetism in Surface-Modified 2D Ti 3 C 2 T X MXene
11:30 AM–11:42 AM
Presenter:
Tej B Limbu
(University of Houston-Clear Lake)
Authors:
Tej B Limbu
(University of Houston-Clear Lake)
Shalini Kumari
(Pennsylvania State University)
Ziqiao Wang
(Pennsylvania State University)
Chetan Dhital
(Kennesaw State University)
Qi Li
(Pennsylvania State University)
Yongan Tang
(North Carolina Central University)
Fei Yan
(North Carolina Central University)
chemical properties of nanomaterials. Herein, we demonstrate an enhancement of the magnetic
behavior of Ti 3 C 2 T x MXene after its chemical reduction via L-ascorbic acid treatment. Small
ferromagnetic loops have been observed below 50 K for Ti 3 C 2 T x prepared by hydrofluoric acid
(HF) etching of Al layers from Ti 3 AlC 2 . Such a ferromagnetic ordering of spins was significantly
enhanced via a chemical reduction of Ti 3 C 2 T x with L-ascorbic acid. Ferromagnetic hysteresis
loops were observed for reduced Ti 3 C 2 T x (r-Ti 3 C 2 T x ) up to 150 K indicating significant upshift of
the paramagnetic to ferromagnetic transition temperature, pushing towards room temperature.
The enhancement of ferromagnetism and upshift of the ferromagnetic transition temperature
could be attributed to the localized unpaired electron in Ti-3d orbital of the r-Ti 3 C 2 T x crystal and
removal of the significant number of F-terminations upon L-ascorbic acid treatment. Surface
modification via L-ascorbic acid treatment shows a promising pathway towards the modulation
and enhancement of magnetism in various MXene materials for the development of 2D metallic
soft ferromagnets and spintronic devices.
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