Band structure effects of transport properties in icosahedral quasicrystals

1993 ◽  
Vol 71 (25) ◽  
pp. 4166-4169 ◽  
Author(s):  
Takeo Fujiwara ◽  
Susumu Yamamoto ◽  
Guy Trambly de Laissardière
Author(s):  
Gautam Sharma ◽  
Vineet Kumar Pandey ◽  
Shouvik Datta ◽  
Prasenjit Ghosh

Thermoelectric materials are used for conversion of waste heat to electrical energy. The transport coefficients that determine their thermoelectric properties depend on the band structure and the relaxation time of...


2019 ◽  
Vol 58 (9) ◽  
pp. 5533-5542 ◽  
Author(s):  
Patrick Gougeon ◽  
Philippe Gall ◽  
Rabih Al Rahal Al Orabi ◽  
Benoit Boucher ◽  
Bruno Fontaine ◽  
...  

1970 ◽  
Vol 1 (10) ◽  
pp. 3998-4004 ◽  
Author(s):  
L. W. James ◽  
J. P. Van Dyke ◽  
F. Herman ◽  
D. M. Chang

2019 ◽  
Vol 7 (3) ◽  
pp. 1045-1054 ◽  
Author(s):  
Hasbuna Kamila ◽  
Prashant Sahu ◽  
Aryan Sankhla ◽  
Mohammad Yasseri ◽  
Hoang-Ngan Pham ◽  
...  

Figure of merit zT mapping of p-Mg2Si1−xSnx with respect to carrier concentration.


Nanoscale ◽  
2019 ◽  
Vol 11 (38) ◽  
pp. 17894-17903 ◽  
Author(s):  
G. H. Silvestre ◽  
Wanderlã L. Scopel ◽  
R. H. Miwa

(Left) Localization of the electronic states near the Fermi level, and the electronic band structure projected on the S1 and S2 stripes. (Right) Transmission probabilites parallel (y) and perpendicular (x) to the S1/S2 borophene superlattice.


2011 ◽  
Vol 25 (10) ◽  
pp. 739-745 ◽  
Author(s):  
N. A. AMIN ◽  
M. T. AHMADI ◽  
Z. JOHARI ◽  
S. M. MOUSAVI ◽  
R. ISMAIL

In this letter, we investigate the transport properties of one-dimensional semiconducting Graphene nanoribbons (GNRs) with parabolic band structure near the Dirac point. The analytical model of effective mobility is developed by using the conductance approach, which differs from the conventional method of extracting the effective mobility using the well-known Matthiessen rule. Graphene nanoribbons conductance model developed was applied in the Drude model to obtain the effective mobility, which then gives nearly close comparison with the experimental data.


Author(s):  
Hua Li ◽  
Gang Li

In this work, we model the strain effects on the electrical transport properties of Si/Ge nanocomposite thin films. We utilize a two-band k·p theory to calculate the variation of the electronic band structure as a function of externally applied strains. By using the modified electronic band structure, electrical conductivity of the Si/Ge nanocomposites is calculated through a self-consistent electron transport analysis, where a nonequilibrium Green’s function (NEGF) is coupled with the Poisson equation. The results show that both the tensile uniaxial and biaxial strains increase the electrical conductivity of Si/Ge nanocomposite. The effects are more evident in the biaxial strain cases.


1975 ◽  
Vol 53 (5) ◽  
pp. 486-497 ◽  
Author(s):  
J. G. Cook ◽  
M. J. Laubitz ◽  
M. P. Van der Meer

Data are presented for the thermal and electrical resistivity and thermoelectric power of two samples of Ca (having residual resistance ratios of 10 and 70) between 30 and 300 K. Large deviations from both Matthiessen's rule and the Wiedemann–Franz relationship are observed. The former are tentatively attributed to the presence of two distinct groups of carriers in Ca, and analyzed using the two band model. The latter deviations are interpreted as the effects of band structure. The thermoelectric power of Ca is large. In many respects the transport properties of Ca appear to be similar to those of the transition metals.


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