Document Type

Article

Publication Date

1-31-2019

Publication Title

Physical Review B

Publisher

American Physical Society

Volume

99

Issue

4

First page number:

1

Last page number:

8

Abstract

Two-dimensional (2D) magnetic materials are essential to developing high-performance spintronic devices. Recent experimental discoveries of several atomic thin 2D ferromagnetic materials have stimulated great interest in further exploring this fascinating class of materials. Here, combining an advanced crystal structure search method and extensive first-principles energetic and dynamic calculations, we have identified a planar CoB6 monolayer as a stable 2D ferromagnet. We show that the ferromagnetic ground state of the CoB6 monolayer remains robust in the ambient environment, and the magnetic stability and moment can be remarkably enhanced and tuned by external strain. Moreover, we propose feasible synthesis routes for the the newly predicted CoB6 monolayer, either by Co atom adsorption on the recently proposed δ4 boron sheet or by direct chemical growth. The present results establish a fundamental material and physics basis for synthesis and characterization of the CoB6 monolayer among the emerging 2D ferromagnetic materials.

Disciplines

Physics

File Format

PDF

File Size

2.102 KB

Language

English

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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