Holey topological thermoelectrics

O. A. Tretiakov, Ar Abanov, Jairo Sinova

研究成果: Article査読

56 被引用数 (Scopus)

抄録

We study the thermoelectric properties of three-dimensional topological insulators with many holes (or pores) in the bulk. We show that at high density of these holes, the thermoelectric figure of merit, ZT, can be large due to the contribution of the conducting surfaces and the suppressed phonon thermal conductivity. The maximum efficiency can be tuned by an induced gap in the surface states dispersion through tunneling or external magnetic fields. The large values of ZT, much higher than unity for reasonable parameters, make this system a strong candidate for applications in heat management of nanodevices, especially at low temperatures.

本文言語English
論文番号113110
ジャーナルApplied Physics Letters
99
11
DOI
出版ステータスPublished - 2011 9月 12

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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