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Science 13 December 1996:
Vol. 274. no. 5294, pp. 1853 - 1854
DOI: 10.1126/science.274.5294.1853
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Perspectives

Abrahams Elihu, Kotliar Gabriel

Some materials are metals and conduct electricity well; others are insulators and do not. In some cases, metals can be converted to insulators and vice versa by changing some fundamental parameter, such as pressure. In their Perspective, Abrahams and Kotliar discuss results reported in the same issue by Husmann et al. (p. 1874) in which a continuous metal-insulator transition has been observed in a nickel selenide-sulfide compound. Understanding such transitions, which have posed puzzles for years, may help unravel the physics of highly correlated electrons, as well as lead to new materials.

The authors are at the Serin Physics Laboratory, Rutgers University, Piscataway, NJ 08855, USA. E-mail: kotliar{at}physics.rutgers.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Magnetic Superstructure in the Two-Dimensional Quantum Antiferromagnet SrCu2(BO3)2.
K. Kodama, M. Takigawa, M. Horvatic, C. Berthier, H. Kageyama, Y. Ueda, S. Miyahara, F. Becca, and F. Mila (2002)
Science 298, 395-399
   Abstract »    Full Text »    PDF »
Quantum-Critical Conductivity Scaling for a Metal-Insulator Transition.
H. Lee, J. P. Carini, D. V. Baxter, W. Henderson, and G. Grüner (2000)
Science 287, 633-636
   Abstract »    Full Text »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)