| Autor: |
Liu, Li-Zhe, Jin, Kyung-Hwan, Liu, Feng |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 4/21/2020, Vol. 127 Issue 15, p1-7, 7p, 1 Chart, 6 Graphs |
| Abstrakt: |
The contrasting d-orbital occupation required for ferroelectricity vs ferromagnetism makes it difficult for their coexistence in two-dimensional materials, especially at high temperature. To resolve this intrinsic contradiction, we propose a layered MoCr2S6 multiferroics by alloying magnetic Cr element into the ferroelectric 1T phase of the MoS2 matrix. First-principles calculations disclose that a spontaneous symmetry breaking, depending on the Mo atom displacement, leads to a robust ferroelectricity, which coexists with a ferromagnetic order originated from two neighboring Cr atoms. The effect can be further enhanced by tensile strain to bring about a room-temperature multiferroicity. Our findings shed new light on the fundamental understanding of multiferroics and display promising applications in spintronics and multistate data storage. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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