Conductance fluctuations and single-parameter scaling in two-dimensional disordered systems

2005 ◽  
Vol 72 (2) ◽  
Author(s):  
J. Prior ◽  
A. M. Somoza ◽  
M. Ortuño
Keyword(s):  
Disordered Systems ◽  
Single Parameter ◽  
Two Dimensional ◽  
Conductance Fluctuations

scholarly journals Two-Dimensional Nutation NQR Broad-Line Spectra in Oriented Samples

2006 ◽  
Vol 61 (9) ◽  
pp. 499-504 ◽  
Author(s):  
Nicolay Sinyavsky ◽  
Irina Korneva ◽  
Michał Ostafin ◽  
Bolesław Nogaj ◽  
Mariusz Maćkowiak
Keyword(s):  
Asymmetry Parameter ◽  
Disordered Systems ◽  
Quadrupole Coupling Constant ◽  
Two Dimensional ◽  
Coupling Constant ◽  
Nuclear Spins ◽  
Radio Frequency Field ◽  
Quadrupole Coupling ◽  
Oriented Samples ◽  
Constant E

The NQR nutation method to determine the electric field gradient asymmetry parameter η in systems, where the resonance line is so broad that the radio frequency field can excite only a portion of the nuclear spins, is presented. In this situation, the recently developed spectroscopic methods are not applicable. Two-dimensional nutation NQR spectra of oriented powders are calculated and used to determine η at particular frequencies along a broad NQR line. The proposed method is useful for single crystals, oriented powders, glasses, and disordered systems even for small values of the asymmetry parameter. Therefore it can be used to evaluate fluctuations in η and the quadrupole coupling constant e2qQ due to inhomogeneities. We demonstrate the application of this method to oriented chalcogenide semiconducting glasses.

scholarly journals Conformal algebras of two-dimensional disordered systems

2002 ◽  
Vol 35 (27) ◽  
pp. L377-L384 ◽  
Author(s):  
Victor Gurarie ◽  
Andreas W W Ludwig
Keyword(s):  
Disordered Systems ◽  
Two Dimensional ◽  
Conformal Algebras

scholarly journals Lloyd-model generalization: Conductance fluctuations in one-dimensional disordered systems

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
J. A. Méndez-Bermúdez ◽  
A. J. Martínez-Mendoza ◽  
V. A. Gopar ◽  
I. Varga
Keyword(s):  
Disordered Systems ◽  
One Dimensional ◽  
Model Generalization ◽  
Conductance Fluctuations
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