scholarly journals The one-dimensional Wigner crystal in carbon nanotubes

2008 ◽  
Vol 4 (4) ◽  
pp. 314-318 ◽  
Author(s):  
Vikram V. Deshpande ◽  
Marc Bockrath
Author(s):  
Niccolo Traverso Ziani ◽  
Fabio Cavaliere ◽  
Karina Guerrero Becerra ◽  
Maura Sassetti

The simplest possible structural transition that an electronic system can undergo is Wigner crystallization. The aim of this short review is to discuss the main aspects of three recent experimets on the one dimensional Wigner molecule, starting from scratch. To achieve this task, the Luttinger liquid theory of weakly and strongly interacting fermions will be shortly addressed, together with the basic properties of carbon nanotubes that are require. Then, the most relevant properties of Wigner molecules will be addressed, and finally the experiments will be described.


2007 ◽  
Vol 21 (13n14) ◽  
pp. 2181-2190
Author(s):  
F. GREEN ◽  
D. NEILSON

Nanotube structures are unprecedented in their stability and current-carrying capacity at intense driving fields. A comprehensive understanding of electron conduction from equilibrium through to the high-driving-field regime is needed. We present a microscopically conserving quantum-kinetic description of transport for ohmically contacted carbon nanotubes. The approach is computationally straightforward and can describe nonequilibrium response over a wide range of parameters. We have analyzed the interplay of degeneracy and scattering dynamics on gate-controlled conduction in the one-dimensional channel, and have determined transconductances.


2000 ◽  
Vol 14 (19) ◽  
pp. 717-724 ◽  
Author(s):  
GANG ZHANG ◽  
ZHILIANG CAO ◽  
BING-LIN GU

In this paper, we considered a single-wall carbon nanotube deposited on a substrate and probed by a scanning probe. We calculated the current and differential conductance dI/dV versus the bias voltage V in this system. We found that currents through nanotubes become saturated in high voltages. This result shows the one-dimensional characteristic of carbon nanotubes. Our results are consistent with experiments which were carried out in low bias voltage regime and can be tested easily by experiments in higher bias voltage regime.


2009 ◽  
Vol 79 (19) ◽  
Author(s):  
Stefan A. Söffing ◽  
Michael Bortz ◽  
Imke Schneider ◽  
Alexander Struck ◽  
Michael Fleischhauer ◽  
...  

2006 ◽  
Vol 8 (24) ◽  
pp. 5489-5492 ◽  
Author(s):  
Atsushi Ikeda ◽  
Kazuyuki Nobusawa ◽  
Tomoe Hamano ◽  
Jun-ichi Kikuchi

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 20
Author(s):  
Niccolo Traverso Ziani ◽  
Fabio Cavaliere ◽  
Karina Guerrero Becerra ◽  
Maura Sassetti

The simplest possible structural transition that an electronic system can undergo is Wigner crystallization. The aim of this short review is to discuss the main aspects of three recent experimets on the one-dimensional Wigner molecule, starting from scratch. To achieve this task, the Luttinger liquid theory of weakly and strongly interacting fermions is briefly addressed, together with the basic properties of carbon nanotubes that are required. Then, the most relevant properties of Wigner molecules are addressed, and finally the experiments are described. The main physical points that are addressed are the suppression of the energy scales related to the spin and isospin sectors of the Hamiltonian, and the peculiar structure that the electron density acquires in the Wigner molecule regime.


2008 ◽  
Vol 67 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Stefano Passini

The relation between authoritarianism and social dominance orientation was analyzed, with authoritarianism measured using a three-dimensional scale. The implicit multidimensional structure (authoritarian submission, conventionalism, authoritarian aggression) of Altemeyer’s (1981, 1988) conceptualization of authoritarianism is inconsistent with its one-dimensional methodological operationalization. The dimensionality of authoritarianism was investigated using confirmatory factor analysis in a sample of 713 university students. As hypothesized, the three-factor model fit the data significantly better than the one-factor model. Regression analyses revealed that only authoritarian aggression was related to social dominance orientation. That is, only intolerance of deviance was related to high social dominance, whereas submissiveness was not.


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