Superconductivity of binary and ternary molybdenum phosphides prepared at high pressure

Citation
I. Shirotani et al., Superconductivity of binary and ternary molybdenum phosphides prepared at high pressure, PHYSICA C, 357, 2001, pp. 329-332
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
0921-4534 → ACNP
Volume
357
Year of publication
2001
Part
1
Pages
329 - 332
Database
ISI
SICI code
0921-4534(200108)357:<329:SOBATM>2.0.ZU;2-G
Abstract
Binary and ternary molybdenum phosphides have been prepared at temperatures between 1200 and 1700 degreesC under 4 GPa. An electrical resistivity and a de magnetic susceptibility of the molybdenum phosphides were measured at low temperatures. The superconducting transition temperatures (T-c's) of bi nary molybdenum phosphides are 7 K for Mo3P, 5.8 K for Mo8P5 and 3 K for Mo 4P3. Phosphorus-rich compounds MoP, MoP2 and MoP4 do not show the supercond uctivity down to 2 K. Ternary molybdenum phosphides MoNiP and MoRuP show th e superconducting transition at around 15.5 K. The superconductivity in MoN iP and MoRuP is due to the Mo 4d electrons. The Mo-Mo bonds in the molybden um phosphides are very important for the enhancement of the superconductivi ty. (C) 2001 Elsevier Science B.V. All rights reserved.