Observations of zero electrical resistance of Au-Ag thin films near room temperature

Autor:	Hooda, M. K., Kumar, P., Balakrishnan, Viswanath, Yadav, C. S.
Rok vydání:	2019
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Recent observations of superconducting like transition at 286 K in Ag and Ag nanostructures by Thapa et al. (arxiv: 1807.08572) have rekindled the hope for room temperature superconductivity under ambient conditions. We also investigated the electrical properties of Ag-Au nanostructure in the form of thin film grown on SiO2/Si substrate by DC sputtering and observed signature of zero resistance in the temperatures range of 243 K to 275 K. While the observed electrical resistance of samples shows intriguing and perplexing behavior under temperature cycling and external magnetic field; the large spatial inhomogeneity present in thin film hampers the reproducibility indicating the stability issues associated with superconducting like phase. Comment: 8 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1906.00708 Zobrazit plný text záznamu View this record from Arxiv