Meso-scale fluctuations in liquid chalcogens near the metal-nonmetal transition

Medium-range fluctuations accompanying the metal-nonmetal transition in expanded fluid hg.

We have carried out small angle x-ray scattering experiments of expanded fluid Hg in the metal-nonmetal (M-NM) transition region around 9.0 g cm(-3). Increase of small angle scattering intensity following the Ornstein-Zernike equation is clearly observed in the M-NM transition region as well as near the liquid-vapor critical point at 5.8 g cm(-3). The short-range correlation length, R, becomes ...

Changes in electron localization and density of states near EF across the nonmetal-metal transition in Mg overlayers.

A ug 2 00 7 Nature of the metal - nonmetal transition in metal - ammonia solutions . I .

Gennady N. Chuev, Pascal Quémerais, and Jason Crain (1) Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Pushchino, Moscow Region, 142290, Russia (2)Institut Néel, CNRS, BP 166, 38042 Grenoble Cedex 9, France (3) School of Physics, The University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ, United Kingdom (4) National Physical Laboratory, Hampton Road, Teddin...

Conductance fluctuations near Anderson transition

In this paper we report measurements of conductance fluctuations in single crystal samples of Si doped with P and B close to the critical composition of the metal insulator transition (nc ≈ 4 × 10 cm). The measurements show that the noise, which arises from bulk sources, does not diverge as the Ioffe-Regal limit (kF l → 1) is approached from the metallic side. At room temperatures, the magnitud...

Interfacial fluctuations near the critical filling transition.

We advance a method to describe the short-distance fluctuations of an interface spanning a wedge-shaped substrate near the critical filling transition. Two different length scales determined by the average distance of the interface from the substrate at the wedge center can be identified. On one length scale, the one-dimensional approximation of A. O. Parry, C. Rascon, and A. J. Wood [Phys. Rev...