Superconductivity at 7.3 K in Ti2InN

✍ Scribed by A.D. Bortolozo; G. Serrano; A. Serquis; D. Rodrigues Jr.; C.A.M. dos Santos; Z. Fisk; A.J.S. Machado

• Book ID: 104093823
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 464 KB
• Volume: 150
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/j.ssc.2010.04.036

✦ Synopsis

In this work the Ti 2 InN phase is investigated by X-ray diffraction, magnetic and resistivity measurements. X-ray powder patterns suggest that all peaks can be indexed with the hexagonal phase of Cr 2 AlC prototype. Electrical resistance as a function of temperature reveals superconductivity below 7.3 K. M(H) hysteresis loops show typical type-II superconductivity. Using R(H) versus T measurements we estimated µ o H c2 (0) ∼ 10.8 T and ξ (0) ∼ 55.2 Å. The results show unambiguously that Ti 2 InN is the first nitride superconductor belonging to the M n+1 AX n family.