scholarly journals Enhancement in tunneling density of states in a Luttinger liquid: Role of nonlocal interaction

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Amulya Ratnakar ◽  
Sourin Das
Keyword(s):  
Density Of States ◽  
Luttinger Liquid ◽  
Nonlocal Interaction

An assessment of the role of dipoles on the density‐of‐states function of disordered molecular solids

1993 ◽  
Vol 99 (10) ◽  
pp. 8136-8141 ◽  
Author(s):  
A. Dieckmann ◽  
H. Bässler ◽  
P. M. Borsenberger
Keyword(s):  
Density Of States ◽  
Molecular Solids

Nonequilibrium Density of State of a Kondo Dot Coupled to Luttinger Liquid

2012 ◽  
Vol 622-623 ◽  
pp. 1826-1829
Author(s):  
Kai Hua Yang ◽  
Yang Chen ◽  
Bei Yun Liu ◽  
Xian He
Keyword(s):  
Density Of States ◽  
Bias Voltage ◽  
Strong Interaction ◽  
Luttinger Liquid ◽  
Equation Of Motion ◽  
Green Functions ◽  
Zero Temperature ◽  
Density Of State ◽  
Weakly Coupled ◽  
Kondo Physics

We theoretically investigate the nonequilibrium density of states (DOS) of a Kondo dot weakly coupled to Luttinger liquid leads by using the equation-of-motion technique of non-equilibrium Green functions. The joint effects of large bias voltage and moderately strong intralead interactions results in nontrivial modifications of the Kondo peak in the DOS. The DOS exhibits a two-channel Kondo physics for moderately strong interaction in the leads at zero temperature.

How charges separate: correlating disorder, free energy, and open-circuit voltage in organic photovoltaics

2019 ◽  
Vol 216 ◽  
pp. 236-251 ◽  
Author(s):  
Débora P. Mroczek ◽  
Vladimir Lankevich ◽  
Eric R. Bittner
Keyword(s):  
Free Energy ◽  
Density Of States ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Organic Polymer ◽  
Type Ii ◽  
Model Type ◽  
Polymer Photovoltaics ◽  
Energetic Disorder

In this paper, we discuss our recent efforts to correlate the role of density of states, entropy, and configurational and energetic disorder to the open-circuit voltage, VOC, of model type-II organic polymer photovoltaics.

scholarly journals Chemical Bonding in Metallic Rutile-type Oxides TO2 (T = Ru, Rh, Pd, Pt)

2007 ◽  
Vol 62 (7) ◽  
pp. 949-954 ◽  
Author(s):  
Gérard Demazeau ◽  
Samir F. Matar ◽  
Rainer Pöttgen
Keyword(s):  
Band Structure ◽  
Density Of States ◽  
Chemical Bonding ◽  
Density Functional ◽  
Field Analysis ◽  
Transition Elements ◽  
Functional Theory ◽  
Synthesis Routes ◽  
Oxygen Bond

Abstract Synthesis routes to rutile-type oxides with 4d and 5d transition elements are summarized. Trends in electronic structure have been established through an analysis in the framework of density functional theory presenting the band structure, the density of states and the properties of chemical bonding. The metal-oxygen bond is found to play the major role in bonding of the system in the valence band. Throughout the series 4d → 5d (RuO2, RhO2, PdO2 and PtO2) the crystal field analysis of the band structure shows a lowering of eg towards t2g manifolds and a broadening of the overall density of states. In the vicinity of the Fermi level the role of the antibonding metal-oxygen character is investigated in the context of instability towards possible magnetic polarization, especially for RuO2.

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