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Multiferroic Two-Dimensional Materials
Open accessAbstract
The relation between unusual Mexican-hat band dispersion, ferromagnetism, and ferroelasticity is investigated using a combination of analytical, first-principles, and phenomenological methods. The class of material with Mexican-hat band edge is studied using the α-SnO monolayer as a prototype. Such a band edge causes a van Hove singularity diverging with 1/sqrt[E], and a charge doping in these bands can lead to time-reversal symmetry breaking. Herein, we show that a material with Mexican-hat band dispersion, α-SnO, can be ferroelastic or paraelastic depending on the number of layers. Also, an unexpected multiferroic phase is obtained in a range of hole density for which the material presents ferromagnetism and ferroelasticity simultaneously.
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Castro, E. V., Novoselov, K. S., Morozov, S. V., Peres, N. M. R., dos Santos, J. M. B. L., Nilsson, J., Guinea, F., Geim, A. K., & Neto, A. H. C. (2007) · Physical Review Letters · doi:10.1103/physrevlett.99.216802 · Cited by 2,033
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Black phosphorus and its isoelectronic materials
Xia, F., Wang, H., Hwang, J. C. M., Neto, A. H. C., & Yang, L. (2019) · Nature Reviews Physics · doi:10.1038/s42254-019-0043-5 · Cited by 322
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Metadata
- Authors
- Seixas, L., Rodin, A. S., Carvalho, A., & Castro Neto, A. H.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2016-05-20
- Volume
- 116
- Issue
- 20
- Pages
- 206803-206803
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2258043119
- Cited by
- 247
- References
- 1
- FWCI
- 7.49
- Type
- journal article
- Language
- en
- Open access
- green
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