Large thermoelectric figure of merit for three-dimensional topological Anderson insulators via line dislocation engineering Academic Article

abstract

• We study the thermoelectric properties of three-dimensional topological Anderson insulators with line dislocations. We show that at high densities of dislocations the thermoelectric figure of merit ZT can be dominated by one-dimensional topologically protected conducting states channeled through the lattice screw dislocations in the topological insulator materials with a nonzero time-reversal-invariant momentum such as Bi0.9Sb0.1. When the chemical potential does not exceed much the mobility edge the ZT at room temperatures can reach large values, much higher than unity for reasonable parameters, hence making this system a strong candidate for applications in heat management of nanodevices. 2010 American Institute of Physics.

authors

• Abanov, Artem

published proceedings

• APPLIED PHYSICS LETTERS

author list (cited authors)

• Tretiakov, O. A., Abanov, A. r., Murakami, S., & Sinova, J.

citation count

• 54

complete list of authors

• Tretiakov, OA||Abanov, Ar||Murakami, Shuichi||Sinova, Jairo

publication date

• January 2010

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

keywords

• Anderson Model
• Insulators
• Screw Dislocations
• Thermoelectricity

Digital Object Identifier (DOI)

• 10.1063/1.3481382

start page

• 073108

end page

• 073108

volume

• 97

issue

• 7

URL

• http://dx.doi.org/10.1063/1.3481382