Superconductivity in Mo 5 SiB 2
Abstract
In the Mo-Si binary system, Mo 5Si 3 crystallizes in the W 5Si 3 (T 1 phase) structure type. However, when boron replaces silicon in this compound, a structural transition occurs from the W 5Si 3 prototype structure to the Cr 5B 3 prototype structure (T 2 phase) at the composition Mo 5SiB 2. Mo 5SiB 2 has received much attention in the literature as a candidate for structural application in high-temperature turbines, but its electronic and magnetic behavior has not been explored. In this work, we show that Mo 5SiB 2 is a bulk superconducting material with critical temperature close to 5.8 K. The specific-heat, resistivity and magnetization measurements reveal that this material is a conventional type II BCS superconductor.
- Publication:
-
Solid State Communications
- Pub Date:
- October 2011
- DOI:
- 10.1016/j.ssc.2011.07.005
- Bibcode:
- 2011SSCom.151.1455M
