| 词条 | Ranga Dias (scientist) |
| 释义 |
}}{{cleanup biography|date=January 2018}}Ranga Dias is a Sri Lankan born scientist, physicist, researcher[1] currently working in the Lyman Laboratory of Physics at Harvard University.[2] 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. During his Ph.D. research at Washington State University he discovered a new class of highly conducting metallic and superconducting polymers; his CV lists 7 papers published since 2011 in the fields of solid state physics and extreme high pressure,[3] while 16 are listed at ORCID.[4] In January 2017, Dias and Isaac F. Silvera (Thomas D. Cabot Professor of the Natural Sciences) at Harvard University reported[5] the creation of metallic hydrogen in a laboratory.[6] They claimed to have gathered experimental evidence that solid metallic hydrogen had been synthesised, using a diamond anvil cell.[7] According to the reports in Science[8] and the Harvard Gazette, the two physicists claimed to have crushed hydrogen under immense pressures, whereupon the gas became a shiny metal, a feat that physicists have been trying to accomplish for more than 80 years,[7] since the possibility of achieving this was originally theorised in 1935 by Wigner and Huntington.[9] Contrary to the claim, an article in Nature names five physicists who are not convinced that hydrogen has been squeezed to a metallic form inside a diamond-tipped anvil in this work.[6] References1. ^{{Cite web|url=https://www.physics.harvard.edu/people/researchers|title=Research Scholar Directory {{!}} Harvard University Department of Physics|website=www.physics.harvard.edu|access-date=2018-01-04}} {{DEFAULTSORT:Dias, Ranga}}2. ^{{Cite news|url=https://scholar.harvard.edu/dias/bio|title=Biography |publisher=scholar.harvard.edu|access-date=2018-01-04|language=en}} 3. ^'Ranga Dias, Assistant Professor, Department of Mechanical Engineering', at hajim.rochester.edu Accessed 2018-01-10 4. ^Ranga Dias ORCID iD at orcid.org Accessed 2018-01-10 5. ^{{Cite news|url=https://www.bbc.com/news/science-environment-38768683|title=Hydrogen 'wonder material' claim made|last=Amos|first=Jonathan|date=2017|work=BBC News|access-date=2018-01-04|language=en-GB}} 6. ^1 {{Cite journal|last=Castelvecchi|first=Davide|date=2017-02-02|title=Physicists doubt bold report of metallic hydrogen|url=https://www.nature.com/news/physicists-doubt-bold-report-of-metallic-hydrogen-1.21379|journal=Nature|language=en|volume=542|issue=7639|pages=17–17|doi=10.1038/nature.2017.21379}} 7. ^1 {{Cite news|url=https://news.harvard.edu/gazette/story/2017/01/a-breakthrough-in-high-pressure-physics/|title=Advance in high-pressure physics|date=2017-01-26|work=Harvard Gazette|access-date=2018-01-04|language=en-US}} 8. ^[https://science.sciencemag.org/content/early/2017/01/25/science.aal1579 Ranga P. Dias, Isaac F. Silvera: “Observation of the Wigner-Huntington Transition to Solid Metallic Hydrogen” Science 355, 715-718 (2017) at science.sciencemag.org] Accessed 2018-01-10 9. ^[https://harvardsciencereview.com/2017/05/16/the-discovery-of-metallic-hydrogen/ Felipe Flores: The Discovery of Metallic Hydrogen] harvardsciencereview.com, Accessed 4 March 2019 3 : Living people|Sinhalese physicists|Year of birth missing (living people) |
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