Moses HW Chan

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Moses Hung-Wai Chan ( Chinese  陳鴻 渭 ; born November 23, 1946 in Xi'an , China ) is an American physicist .

Chan attended Bridgewater College with a bachelor's degree in 1967 and Cornell University with a master's degree in 1970 and a doctorate from Cornell University in 1974 with John Reppy . He was an Assistant Lecturer at the University of Hong Kong from 1969 to 1970 and a Research Associate at Duke University from 1973 to 1976 . From 1976 he was assistant professor at the University of Toledo and from 1979 assistant professor and later professor at Pennsylvania State University . In 2000 he became a Distinguished Professor and in 1994 Evan Pugh Professor .

1986/87 he was visiting professor at Cornell University.

In 2004 he and his doctoral student Eun-Seong Kim reported on the discovery of suprasolidity (a quantum state of solid bodies in which the viscosity disappears) in a torsional vibration experiment with solid helium 4 (which was in a porous glass called Vycor) in which they a detected non-classical moment of inertia. However, when Chan repeated the experiment with Dud Kim in 2012, they found no evidence of suprasolidity. The observed effect could be explained by the change in the elasticity of the solid helium.

In 1984 he and HK Kim determined experimentally the critical exponent in the two-dimensional Ising model (gas-liquid transition for methane adsorbed on graphite in a monolayer). In 1999 he observed the critical Casimir effect.

More recently he has also been working on magnetic and superconducting nanowires.

He is a Fellow of the American Physical Society , the American Academy of Arts and Sciences (2004), and the National Academy of Sciences (2000). In 1982 he was a Senior Fellow of the Japan Society for the Promotion of Science. In 1986 he was a Guggenheim Fellow .

In 1996 he received the Fritz London Memorial Prize for his innovative and precise experimental studies of phase transitions in liquids, especially in reduced dimensions, ... and in the presence of disorder and imperfections; as well as for his contributions to the experimental investigation of wetting .

Web links

Individual evidence

  1. ↑ Birth and career data according to American Men and Women of Science , Thomson Gale 2004
  2. ↑ Kim, Chan, Probable Observation of a Supersolid Helium Phase, Nature, Volume 427, 2004, pp. 225-227, PMID 14724632
  3. ^ DY Kim, MHW Chan: Absence of Supersolidity in Solid Helium in Porous Vycor Glass ". Physical Review Letters, Volume 109, 2012, p. 155301. PMID 23102323
  4. ↑ Focus: Supersolid Discoverer's New Experiments Show No Supersolid, APS Physics 2012
  5. ↑ HK Kim, MHW Chan, An Experimental Determination of a Two-Dmensional Liquid-Vapor Critical Point Exponent, Physical Review Letters, Volume 53, 1984, pp 170-173. Abstract
  6. ^ R. Garcia, MHW Chan, Critical Fluctuation-Induced Thinning of 4He Films near the Superfluid Transition, Physical Review Letters, Volume 83, 1999, pp. 1187-1190. Abstract
  7. ^ The 1996 Fritz London Memorial Prize Winners (PDF; 70.6 KB) Internet site of the Pennsylvania State University (English), undated. Retrieved February 3, 2019.
personal data
SURNAME Chan, Moses HW
ALTERNATIVE NAMES Chan, Moses Hung-Wai
BRIEF DESCRIPTION American physicist
DATE OF BIRTH November 23, 1946
PLACE OF BIRTH Xi'an , China