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Geometrically induced electric polarization in conical topological insulators
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10.1063/1.3698604
/content/aip/journal/jap/111/6/10.1063/1.3698604
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/6/10.1063/1.3698604
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The conical geometry: cut and removal of a sector 2πβ, 0 < β < 1 from 2D plane; identification of lines u and v gives a cone; δ = arcsin(1 − β) is called the aperture angle, is normal to the surface). Note also the electric charge q placed just above the apex which complete our system to be studied here.

Image of FIG. 2.
FIG. 2.

Electric charge polarization in conical topological insulators: Wider TI cones (upper), with δ > 30° tend to accumulate negative charges (electrons) near the apex, while in narrower ones a net positive charge is expected to occur there. Black arrows, , accounts for the cone polarization while the blue curves represent the Hall current flowing along the surface.

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/content/aip/journal/jap/111/6/10.1063/1.3698604
2012-03-30
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Geometrically induced electric polarization in conical topological insulators
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/6/10.1063/1.3698604
10.1063/1.3698604
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