R.  Hemley: ein Porträt (englisch)

USA - USA/China

Russell J. Hemley e Ho-kwang Mao

Balzan Preis 2005 für Mineralphysik

Für ihre bahnbrechenden gemeinsamen Arbeiten über das Verhalten von Mineralien unter extremen physikalischen Bedingungen. Als produktives Team haben Russell Hemley und Ho-kwang Mao mit ihren Arbeiten bedeutungsvolle wissenschaftliche Beiträge auf höchstem Niveau geleistet. Sie haben Methoden entwickelt, welche die Untersuchung des Verhaltens verschiedenster Stoffe – wie Wasserstoff, des am weitesten verbreiteten “Minerals” des Universums – unter extremen Bedingungen von Druck und Temperatur erlauben. Die Ergebnisse der Arbeiten von Russell Hemley und Ho-kwang Mao sind für unser Verständnis der Natur und unserer Erde von grundlegender Bedeutung.

Profilo


Russell J. Hemley’s research explores the behavior of materials over a broad range of thermodynamic conditions from low to very high pressures. He began his research career in molecular spectroscopy and electronic structure theory. An interest in the effects of high pressures on materials led him to the Geophysical Laboratory of the Carnegie Institution of Washington. There he began to apply and extend chemical physics techniques in high-pressure diamond anvil cell experiments. Since then, his research program has expanded to include high-pressure experimental and theoretical studies in condensed matter physics, earth and planetary science, and materials science. Some of his accomplishments include the discovery of new phenomena in dense hydrogen at megabar pressures; observations of unusual transformations in molecular materials and novel high-pressure molecular compounds; the creation of new superconductors, magnetic structures, glasses, and superhard materials under pressure, and the synthesis of single crystal diamond by chemical vapor deposition. He is also involved in the continued development of high-pressure techniques, including optical methods, synchrotron radiation for diffraction and spectroscopy, and transport measurements.

Russell J. Hemley grew up in California, Colorado, and Utah, and attended Wesleyan University, where he studied chemistry and philosophy (B.A., 1977). He did his graduate work in physical chemistry at Harvard University (M.A., 1980; Ph.D. 1983). After a post-doctoral fellowship in theoretical chemistry at Harvard (1983-84), he joined the Geophysical Laboratory as a Carnegie Fellow (1984-86) and Research Associate (1986-87), and became a Staff Scientist in 1987. He has been a visiting Professor at the Johns Hopkins University (1991-92) and at the Ecole Normale Superieure, Lyon (1996). He is the recipient of the 1990 Mineralogical Society of America Award, and is a Fellow of the American Physical Society, the American Geophysical Union, and the American Academy of Arts and Sciences. He was elected as a member of the National Academy of Sciences in 2001. He has authored on over 430 publications.

(September 2005)

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