期刊
ACS OMEGA
卷 5, 期 1, 页码 864-870出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.9b03779
关键词
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资金
- National Natural Science Foundation of China [11664012, 11664013]
- Excellent Youth Foundation of Jiangxi Province [20171BCB23035]
- Natural Science Foundation of Jiangxi Province [2017BAB211008]
Two-dimensional materials with robust magnetic moments are of great interest to explore the exciting physics and applications of nanoscale spintronic devices. However, the antiferromagnetic (AFM) ground states often restrict the applications of symmetric MXenes. Herein, we proposed a kind of Janus structure for the V-based nitride MXene V2N with one V layer replaced by the Ti/Cr layer. In this work, we demonstrated from the first-principles calculations that although the AFM ground states are formed, the Janus TiVN and CrVN monolayers possess net magnetic moments of 1.97 and 0.28 mu(B) per formula unit, respectively. Moreover, the net magnetic moments of TiVN and CrVN monolayers are robust even if considerable strains (-8 to 8%) are applied. Our results also show that TiVN and CrVN exhibit half-metallic and metallic features, respectively. These properties widen the potential applications of Janus V-based MXenes in spintronic or other electronic devices.
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