Nonvolatile switchable half-metallicity and magnetism in the MXene Hf2MnC2O2/Sc2CO2 multiferroic heterostructure

Wu，Changwei1; Gong，Weiping1; Sun，Shanwei2; Wang，Xiao2; Li，Jiangyu3; Wu，Changwei4; Gong，Weiping4

2024-01-10

10.1039/d3cp04847k

Physical Chemistry Chemical Physics   影响因子和分区

1463-9076

Nonvolatile electrical control of two-dimensional (2D) van der Waals (vdW) magnetism is important for spintronic devices. Here, using first-principles calculations, we systematically investigated the magnetic properties of the MXene HfMnCO combined with the ferroelectric MXene ScCO. When flipping the electric polarization of ScCO, a transition between a semiconductor and a half-metal occurs in the HfMnCO monolayer. Moreover, the ferromagnetic exchange parameter J can be enhanced to 9.67 meV under polarized P↑ of ScCO, much larger than those of the pristine HfMnCO monolayer and HfMnCO/ScCO-P↓. In addition, the easy magnetization axis of the HfMnCO monolayer is also dependent on the polarization orientation of ScCO. Our results indicate a multiferroic heterostructure based on MXenes, offering an effective way for obtaining nonvolatile electrical control of electronic and magnetic properties.

英语

通讯

CHEMISTRY

2-s2.0-85183529426

Scopus

1.Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices,Huizhou University,Huizhou,Guangdong,516001,China
2.Shenzhen Key Laboratory of Nanobiomechanics,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China
3.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.School of Electronic Information and Electrical Engineering,Huizhou University,Huizhou,Guangdong,516001,China

Wu，Changwei,Gong，Weiping,Sun，Shanwei,et al. Nonvolatile switchable half-metallicity and magnetism in the MXene Hf2MnC2O2/Sc2CO2 multiferroic heterostructure[J]. Physical Chemistry Chemical Physics,2024,26(6):5323-5332.

Wu，Changwei.,Gong，Weiping.,Sun，Shanwei.,Wang，Xiao.,Li，Jiangyu.,...&Gong，Weiping.(2024).Nonvolatile switchable half-metallicity and magnetism in the MXene Hf2MnC2O2/Sc2CO2 multiferroic heterostructure.Physical Chemistry Chemical Physics,26(6),5323-5332.

Wu，Changwei,et al."Nonvolatile switchable half-metallicity and magnetism in the MXene Hf2MnC2O2/Sc2CO2 multiferroic heterostructure".Physical Chemistry Chemical Physics 26.6(2024):5323-5332.