Signature of Martensite transformation on conductivity noise in thin films of NiTi shape memory alloys

Autor:	U, Chandni., Ghosh, Arindam, Vijaya, H. S., Mohan, S.
Rok vydání:	2008
Předmět:	Condensed Matter - Other Condensed Matter Condensed Matter - Strongly Correlated Electrons
Zdroj:	Applied Physics Letters, 92, 112110 (2008)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.2896304
Popis:	Slow time-dependent fluctuations, or noise, in the electrical resistance of dc magnetron sputtered thin films of Nickel Titanium shape memory alloys have been measured. Even in equilibrium, the noise was several orders of magnitude larger than that of simple diffusive metallic films, and was found to be non-monotonic around the martensitic transformation regime. The results are discussed in terms of dynamics of structural defects, which also lay foundation to a new noise-based characterization scheme of martensite transformation. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0811.0101 Zobrazit plný text záznamu View this record from Arxiv