First-principles study on thermoelectric properties of half-Heusler compounds CoMSb (M = Sc, Ti, V, Cr, and Mn)

フォーマット:

論文

責任表示:

Minami, Susumu ; Ishii, Fumiyuki ; Mizuta, Yo Pierre ; Saito, Mineo ; 見波, 将 ; 石井, 史之 ; 斎藤, 峯雄

言語:

英語

出版情報:

American Institute of Physics, 2018-07-16

著者名:

Minami, Susumu

Ishii, Fumiyuki

Mizuta, Yo Pierre

Saito, Mineo

見波, 将

石井, 史之

斎藤, 峯雄

続きを見る

掲載情報:

Applied Physics Letters

ISSN:

0003-6951      

巻:

113

通号:

3

開始ページ:

032403

バージョン:

publisher

概要:

金沢大学自然科学研究科数物科学専攻<br />We have performed systematic density functional calculations and evaluated thermoelectric properties (Seebeck coefficient and anomalous Nernst coefficient) of half-Heusler compounds CoMSb (M = Sc, Ti, V, Cr, and … Mn). The carrier concentration dependence of the Seebeck coefficient in nonmagnetic compounds is in good agreement with experiments. We found that the half-metallic ferromagnetic CoMnSb shows a large anomalous Nernst effect originating from Berry curvature near the Brillouin zone boundary. These results help us understand the mechanism of a large anomalous Nernst coefficient and give us a clue to design high performance magnetic thermoelectric materials. © 2018 Author(s).<br />Embargo Period 12 months 続きを見る

URL:

http://hdl.handle.net/2297/00053952