Ranga Dias (scientist)

Ranga Dias is a Sri Lankan born physicist who is an assistant professor of at the University of Rochester.

Ranga Dias
Born
Sri Lanka
Alma materWashington State University (Ph.D.);
Harvard University (postdoc)
Known formetallic hydrogen, room temperature superconductor
Scientific career
FieldsPhysics
InstitutionsWashington State University; Harvard University;
University of Rochester
Doctoral advisorChoong-Shik Yoo
Other academic advisorsIsaac Silvera

He graduated from the Department of Physics, Colombo University, Sri Lanka and moved to Washington, USA in 2007 for Ph.D. work at Washington State University in the field of extreme condensed matter physics.

In January 2017, as a postdoctoral fellow at Harvard University, Dias and Isaac Silvera reported the creation of solid metallic hydrogen using a diamond anvil cell.[1][2] This state of hydrogen was originally predicted by Wigner and Huntington in 1935.[3] However, several physicists expressed skepticism about the result.[4]

In October 2020, Dias' group at the University of Rochester reported the first-ever creation of a room temperature superconductor, a carbonaceous sulfur hydride system whose chemical formula is still not fully known (described as "a photochemically transformed carbonaceous sulfur hydride system") which exhibited superconducting properties at a temperature of 59 °F (15 °C) and pressure of 267 ± 10 gigapascals.[5][6]

References
  1. "Advance in high-pressure physics". Harvard Gazette. 2017-01-26. Retrieved 2018-01-04.
  2. Amos, Jonathan (2017). "Hydrogen 'wonder material' claim made". BBC News. Retrieved 2018-01-04.
  3. Felipe Flores: The Discovery of Metallic Hydrogen harvardsciencereview.com, Accessed 4 March 2019
  4. Castelvecchi, Davide (2017-02-02). "Physicists doubt bold report of metallic hydrogen". Nature. 542 (7639): 17. doi:10.1038/nature.2017.21379. PMID 28150796.
  5. Wood, Charlie. "Room-Temperature Superconductivity Achieved for the First Time". Quanta Magazine. Retrieved 2020-10-15.
  6. Snider, Elliot; Dasenbrock-Gammon, Nathan; McBride, Raymond; Debessai, Mathew; Vindana, Hiranya; Vencatasamy, Kevin; Lawler, Keith V.; Salamat, Ashkan; Dias, Ranga P. (October 2020). "Room-temperature superconductivity in a carbonaceous sulfur hydride". Nature. 586 (7829): 373–377. doi:10.1038/s41586-020-2801-z. ISSN 1476-4687.
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