Will zigzag graphene nanoribbon turn to half metal under electric field

By E. Kan, Zhenyu Li, Jinlong Yang, J. Hou. 2007

278 citations recorded by the source corpus.

At B3LYP level of theory, we predict that the half-metallicity in zigzag edge graphene nanoribbon (ZGNR) can be realized when an external electric field is applied across the ribbon. The critical electric field decreases with the increase of the ribbon width to induce the half-metallicity. Both the spin polarization and half-metallicity are removed when the edge state electrons fully transferred from one side to the other under very strong electric field. The electric field range under which ZGNR remains half-metallic increases with the ribbon width. Our study demonstrates a rich field-induced spin polarization behavior, which may lead to some important applications in spinstronics.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/35d6eb603902a596be9aff0d0d18b28e46e82b57

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Gang Zhang
2. Yong‐Wei Zhang
3. Jinlong Yang
4. Xingxing Li

In Materials Chemistry

1. Yong‐Wei Zhang
2. Gang Zhang
3. Yongqing Cai
4. Z. Ong
5. V. Sorkin
6. Xingxing Li
7. Jinlong Yang

Citations in the corpus

• Recent Advances in the Study of Phosphorene and its Nanostructures (2017, background): “bons with AC edges display a zigzag-like dependency of the band gap on the applied strain.(269,270) Similar to the band gap, the effective mass of the charge carriers in PNRs can be modified by applying”
• First principles design of spintronics materials (2016, background): “later proved the required critical electric field is too high to achieve [70].”