منابع مشابه
Mott insulator into an exotic metallic state
O. B. Korneta,1,2 Tongfei Qi,1,2 S. Chikara,1,2 S. Parkin,1,3 L. E. De Long,1,2 P. Schlottmann,4 and G. Cao1,2,* 1Center for Advanced Materials, University of Kentucky, Lexington, Kentucky 40506, USA 2Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA 3Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA 4Department of Physics,...
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I present an informal discussion of various cases where two-dimensional surface metal-insulator structural and charge-density-wave instabilities driven by partly filled surface states have been advocated. These include reconstructions of clean semiconductor surfaces and of W(100) and Mo(100), as well as anomalies on the hydrogen-covered surfaces H/W(110) and H/Mo(110), and possibly alkali-cover...
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Routine optical tasks of transforming and directing light beams are commonly done with lenses and mirrors. They are the workhorses in conventional systems, even for micro-optical systems. More sophisticated designs have brought novel and exotic functions, e.g., non-diffracting character via a Bessel beam [1], a dark spot via an optical bottle beam [2], and sub-λ confinement via a photonic nanoj...
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ژورنال
عنوان ژورنال: Nature
سال: 2012
ISSN: 0028-0836,1476-4687
DOI: 10.1038/492165a