New ternary tantalum borides containing boron dumbbells: Experimental and theoretical studies of Ta2OsB2 and TaRuB
详细信息 查看全文
- 作者：Mohammed Mbarkia ; Rachid St. Touzania ; Christian W.G. Rehorna ; Fabian C. Gladischa ; Boniface P.T. Fokwaa ; b ; bfokwa@ucr.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Transition metal-rich borides ; NbRuB-type ; Nb2OsB2-type ; B2-dumbbells ; Peierls distortion ; Density functional calculations ; Chemical bonding ; Superconductivity
- 刊名：Journal of Solid State Chemistry
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：242
- 期：part_P2
- 页码：28-33
- 全文大小：832 K
文摘
- •
Two new ternary tantalum borides, Ta2OsB2 and TaRuB, discovered.
- •
Boron dumbbells are the strongest bonds in Ta2OsB2 and TaRuB.
- •
Peierls distortion responsible for Os2-dumbbells formation in Ta2OsB2.
- •
Ta2OsB2 and TaRuB are Pauli paramagnet.
- •
Ta2OsB2 and TaRuB contain pseudogaps and are potential superconductors.