Nanoparticles of superconducting {gamma}-Mo{sub 2}N and {delta}-MoN
Journal Article
·
· Journal of Solid State Chemistry
- Chemistry and Physics of Materials Unit, DST Unit on Nanoscience and CSIR Centre of Excellence in Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064 (India)
We have been able to prepare nanoparticles ({approx}4 nm diameter) of cubic {gamma}-Mo{sub 2}N by a simple procedure involving the reaction of MoCl{sub 5} with urea at 873 K. The nanoparticles show a superconducting transition around 6.5 K. The {gamma}-Mo{sub 2}N nanoparticles are readily transformed to nanoparticles of {delta}-MoN with a slightly larger diameter on heating in a NH{sub 3} atmosphere at 573 K. Phase-pure {delta}-MoN obtained by this means shows a superconducting transition around 5 K. - Graphical abstract: TEM image of the {gamma}-Mo{sub 2}N particles with the inset showing the resistivity of the sample as a function of temperature.
- OSTI ID:
- 21015649
- Journal Information:
- Journal of Solid State Chemistry, Vol. 180, Issue 1; Other Information: DOI: 10.1016/j.jssc.2006.10.020; PII: S0022-4596(06)00557-3; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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