Last month, doctoral student Mr. Dev Kumar Thapa and his advisor Prof. Anshu Pandey from the Indian Institute of Science, Bengaluru, claimed to have discovered evidence for superconductivity at a temperature much higher than ever before. The researchers have posted a preprint of their paper titled, “Evidence for Superconductivity at Ambient Temperature and Pressure in Nanostructures” to the arXiv, an online repository of pre-prints of journal papers. They have also submitted a paper outlining their findings to the journal Nature. In this particular instance, questions of various kinds have been raised about the research reported in the preprint in the public debate.
Two new studies from the Indian Institute of Bombay (IIT Bombay), Mumbai, show the importance of defects in the arrangement of atoms in a crystal, called dislocations, in shaping the physical properties of metallic alloys.