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Journal articles on the topic 'Electron Conduction - Disordered System'

Author: Grafiati

Published: 7 September 2023

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1

Xu, Hui, Yi-pu Song, and Xin-mei Li. "Conduction mechanism studies on electron transfer of disordered system." Journal of Central South University of Technology 9, no. 2 (2002): 134–37. http://dx.doi.org/10.1007/s11771-002-0058-3.

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2

Efros, A. L., and B. I. Shklovskii. "Influence of electron-electron interaction on hopping conduction of disordered systems." Journal of Non-Crystalline Solids 97-98 (December 1987): 31–38. http://dx.doi.org/10.1016/0022-3093(87)90010-x.

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3

Maiti, Santanu K. "Quantum Transport in Bridge Systems." Solid State Phenomena 155 (May 2009): 71–85. http://dx.doi.org/10.4028/www.scientific.net/ssp.155.71.

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We study electron transport properties of some molecular wires and a unconventional disordered thin film within the tight-binding framework using Green's function technique. We show that electron transport is significantly affected by quantum interference of electronic wave functions, molecule-to-electrode coupling strengths, length of the molecular wire and disorder strength. Our model calculations provide a physical insight to the behavior of electron conduction across a bridge system.

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4

HWANG, J. R., M. F. TAI, H. C. KU, W. N. WANG, and K. H. LII. "TRANSPORT PROPERTIES OF THE RARE EARTH DISORDERED SYSTEMS (R1−xYbx)Ba2Cu3O7 (R = Y, Sm)." International Journal of Modern Physics B 02, no. 06 (1988): 1395–98. http://dx.doi.org/10.1142/s0217979288001219.

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Electrical and magnetic measurements have been carried out for the rare earth disordered superconducting copper oxide systems ( Y 1−x Yb x) Ba 2 Cu 3 O 7 (substitution with large rare earth mass difference) and ( Sm 1−x Yb x) Ba 2 Cu 3 O 7 (substitution with large rare earth ionic size difference). Effect of compositional variation upon room temperature electrical resistivity shows no disorder scattering contribution from the randomly distributed rare earth ions located on the (1/2, 1/2, 1/2) site of the space group Pmmm. This result indicates very low conduction electron density of states sur

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5

Rezania, Hamed. "Electronic properties of disordered zigzag carbon nanotubes." International Journal of Modern Physics B 29, no. 05 (2015): 1550020. http://dx.doi.org/10.1142/s0217979215500204.

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We study the density of states of zigzag carbon nanotube (CNT) doped with both Boron and nitrogen atoms as donor and acceptor impurities, respectively. The effect of scattering of the electrons on the electronic spectrum of the system can be obtained via adding random on-site energy term to the tight binding model Hamiltonian which describes the clean system. Green's function approach has been implemented to find the behavior of electronic density. Due to Boron (Nitrogen) doping, Fermi surface tends to the valence (conduction) band of semiconductor CNT so that the energy gap width reduces. Fur

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6

Hoon Lee, Chang, Dong Keun Oh, and Cheol Eui Lee. "Electron Paramagnetic Resonance Observation of Critical Behaviors in a Disordered Conducting Polymer System." Journal of the Physical Society of Japan 72, no. 7 (2003): 1812–13. http://dx.doi.org/10.1143/jpsj.72.1812.

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7

Bergmann, Gerd. "WEAK LOCALIZATION AND ITS APPLICATIONS AS AN EXPERIMENTAL TOOL." International Journal of Modern Physics B 24, no. 12n13 (2010): 2015–52. http://dx.doi.org/10.1142/s021797921006468x.

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The resistance of two-dimensional electron systems such as thin disordered films shows deviations from Boltzmann theory, which are caused by quantum corrections and are called weak localization. The theoretical origin of weak localization is the Langer–Neal graph in Kubo formalism. It represents an interference experiment with conduction electrons split into pairs of waves interfering in the back-scattering direction. The intensity of the interference (integrated over the time) can easily be measured by the resistance of the film. The application of a magnetic field B destroys the phase cohere

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8

RAVOT, D., O. GOROCHOV, and A. MAUGER. "METAL-INSULATOR TRANSITION IN Yb1–x Gdx Te." International Journal of Modern Physics B 07, no. 01n03 (1993): 814–17. http://dx.doi.org/10.1142/s0217979293001724.

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The metal-insulator transition of Yb1−xGdxTe has been studied by tuning x, since Gd3+ions act as donors. Transport and magnetic properties have been measured for 0<x<1 and T≥4.2K. For x>0.5, the material is a metallic antiferromagnet with a Néel temperature decreasing with x. An outstanding T–1 behavior of the resistivity is observed in a broad temperature range, which we attribute to electron-electron scattering in 3D dimension disordered systems. This behavior is observed in the metallic side, for x in the range 0.2<x≤0.5, and it can be regarded as a pretransition effect to the w

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9

Lau, Lik Nguong, Kean Pah Lim, Amirah Natasha Ishak, et al. "The Physical Properties of Submicron and Nano-Grained La0.7Sr0.3MnO3 and Nd0.7Sr0.3MnO3 Synthesised by Sol–Gel and Solid-State Reaction Methods." Coatings 11, no. 3 (2021): 361. http://dx.doi.org/10.3390/coatings11030361.

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La0.7Sr0.3MnO3 (LSMO) and Nd0.7Sr0.3MnO3 (NSMO) possess excellent colossal magnetoresistance (CMR). However, research work on the neodymium-based system is limited to date. A comparative study between LSMO and NSMO prepared by sol–gel and solid-state reaction methods was undertaken to assess their structural, microstructural, magnetic, electrical, and magneto-transport properties. X-ray diffraction and structure refinement showed the formation of a single-phase composition. Sol–gel-synthesised NSMO was revealed to be a sample with single crystallite grains and exhibited intriguing magnetic and

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10

Luo, Yongkang, F. Ronning, N. Wakeham та ін. "Pressure-tuned quantum criticality in the antiferromagnetic Kondo semimetal CeNi2−δAs2". Proceedings of the National Academy of Sciences 112, № 44 (2015): 13520–24. http://dx.doi.org/10.1073/pnas.1509581112.

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The easily tuned balance among competing interactions in Kondo-lattice metals allows access to a zero-temperature, continuous transition between magnetically ordered and disordered phases, a quantum-critical point (QCP). Indeed, these highly correlated electron materials are prototypes for discovering and exploring quantum-critical states. Theoretical models proposed to account for the strange thermodynamic and electrical transport properties that emerge around the QCP of a Kondo lattice assume the presence of an indefinitely large number of itinerant charge carriers. Here, we report a systema

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11

Cui, Hengbo, Hamish H. M. Yeung, Yoshitaka Kawasugi, Takaaki Minamidate, Lucy K. Saunders, and Reizo Kato. "High-Pressure Crystal Structure and Unusual Magnetoresistance of a Single-Component Molecular Conductor [Pd(dddt)2] (dddt = 5,6-dihydro-1,4-dithiin-2,3-dithiolate)." Crystals 11, no. 5 (2021): 534. http://dx.doi.org/10.3390/cryst11050534.

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A single-component molecular crystal [Pd(dddt)2] has been shown to exhibit almost temperature-independent resistivity under high pressure, leading theoretical studies to propose it as a three-dimensional (3D) Dirac electron system. To obtain more experimental information about the high-pressure electronic states, detailed resistivity measurements were performed, which show temperature-independent behavior at 13 GPa and then an upturn in the low temperature region at higher pressures. High-pressure single-crystal structure analysis was also performed for the first time, revealing the presence o

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12

Ильющенков, Д. С., В. М. Кожевин та С. А. Гуревич. "Зарядовое состояние металлических наночастиц на проводящей подложке". Физика твердого тела 61, № 10 (2019): 1731. http://dx.doi.org/10.21883/ftt.2019.10.48241.471.

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The work is devoted to the analysis of charge state of a disordered system of metallic nanoparticles positioned on a conductive substrate. A theoretical model has been developed that describes thermally activated electron tunnel transitions between the particles as well as between the particles and the substrate, the last ones being caused by the difference in particle and substrate work functions. The model accounts for the inter-particle charge interactions and for the interaction of the particle charges with the image charges in the substrate. By using Monte Carlo simulations charge distrib

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13

Spisak, B. J., M. Wołoszyn, and D. Szydłowski. "Dynamical localisation of conduction electrons in one-dimensional disordered systems." Journal of Computational Electronics 14, no. 4 (2015): 916–21. http://dx.doi.org/10.1007/s10825-015-0733-x.

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14

Chiu, Hui-Shan, Ping-I. Lin, Hsing-Chen Wu, Wen-Hsing Hsieh, Chii-Dong Chen, and Yit-Tsong Chen. "Electron hopping conduction in highly disordered carbon coils." Carbon 47, no. 7 (2009): 1761–69. http://dx.doi.org/10.1016/j.carbon.2009.03.002.

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15

Yoon, Minho. "Subthreshold Conduction of Disordered ZnO-Based Thin-Film Transistors." Micromachines 14, no. 8 (2023): 1596. http://dx.doi.org/10.3390/mi14081596.

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This study presents the disorderedness effects on the subthreshold characteristics of atomically deposited ZnO thin-film transistors (TFTs). Bottom-gate ZnO TFTs show n-type enhancement-mode transfer characteristics but a gate-voltage-dependent, degradable subthreshold swing. The charge-transport characteristics of the disordered semiconductor TFTs are severely affected by the localized trap states. Thus, we posit that the disorderedness factors, which are the interface trap capacitance and the diffusion coefficient of electrons, would result in the degradation. Considering the factors as gate

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16

Giordano, N. "WEAK LOCALIZATION AND ELECTRON–ELECTRON INTERACTION EFFECTS IN THIN METAL WIRES AND FILMS." International Journal of Modern Physics B 24, no. 12n13 (2010): 2053–71. http://dx.doi.org/10.1142/s0217979210064691.

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A brief and selective review of experimental studies of electrical conduction in thin metal wires and films at low temperatures is given. This review will illustrate the importance of various length scales and of dimensionality in determining the properties disordered metals. A few intriguing and still unresolved experimental findings are also mentioned.

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17

Turchinovich, Dmitry, Zoltan Mics, Søren A. Jensen, et al. "Ultrafast carrier dynamics in graphene and graphene nanostructures." Terahertz Science and Technology 13, no. 4 (2020): 135–48. http://dx.doi.org/10.1051/tst/2020134135.

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In this paper we provide a comprehensive view on the ultrafast conduction dynamics in graphene and graphene nanostructures. We show that ultrafast conduction in graphene can be well understood within a simple thermodynamic picture, by taking into account the dynamical interplay between electron heating and cooling, with the driving electric field acting as a supplier of thermal energy to graphene electron population. At the same time, the conductive properties of graphene nanostructures, such as graphene nanoribbons (GNRs) and carbon nanotubes (CNTs), can be well explained within the concept t

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18

Yamada, Hiroaki, and Kazumoto Iguchi. "Some Effective Tight-Binding Models for Electrons in DNA Conduction: A Review." Advances in Condensed Matter Physics 2010 (2010): 1–28. http://dx.doi.org/10.1155/2010/380710.

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Quantum transport for DNA conduction has been widely studied with interest in application as a candidate in making nanowires as well as interest in the scientific mechanism. In this paper, we review recent works concerning the electronic states and the conduction/transfer in DNA polymers. We have mainly investigated the energy-band structure and the correlation effects of localization property in the two- and three-chain systems (ladder model) with long-range correlation as a simple model for electronic property in a double strand of DNA by using the tight-bindingmodel. In addition, we investi

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19

Varriale, M. C., and A. Theumann. "Disordered electron system with long-range correlated impurities." Journal of Physics A: Mathematical and General 23, no. 14 (1990): L719S—L725S. http://dx.doi.org/10.1088/0305-4470/23/14/006.

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20

Katsumata, K., S. Kawai, and J. Tuchendler. "ELECTRON SPIN RESONANCE IN THE DISORDERED SYSTEM Mg1-xCoxCl2." Le Journal de Physique Colloques 49, no. C8 (1988): C8–1091—C8–1092. http://dx.doi.org/10.1051/jphyscol:19888500.

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21

Magalhães, S. G., and Alba Theumann. "Magnetoconductivity of a disordered electron system withNorbitals per site." Physical Review B 49, no. 8 (1994): 5691–94. http://dx.doi.org/10.1103/physrevb.49.5691.

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22

FLÖSER, MARTINA, SERGE FLORENS, and THIERRY CHAMPEL. "TRANSPORT VIA CLASSICAL PERCOLATION AT QUANTUM HALL PLATEAU TRANSITIONS." International Journal of Modern Physics: Conference Series 11 (January 2012): 49–59. http://dx.doi.org/10.1142/s2010194512006150.

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We consider transport properties of disordered two-dimensional electron gases under high perpendicular magnetic field, focusing in particular on the peak longitudinal conductivity [Formula: see text] at the quantum Hall plateau transition. We use a local conductivity model, valid at temperatures high enough such that quantum tunneling is suppressed, taking into account the random drift motion of the electrons in the disordered potential landscape and inelastic processes provided by electron-phonon scattering. A diagrammatic solution of this problem is proposed, which leads to a rich interplay

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23

Repetsky, Stanislav P., Iryna G. Vyshyvana, Sergei P. Kruchinin, and Stefano Bellucci. "Theory of Electron Correlation in Disordered Crystals." Materials 15, no. 3 (2022): 739. http://dx.doi.org/10.3390/ma15030739.

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This paper presents a new method of describing the electronic spectrum and electrical conductivity of disordered crystals based on the Hamiltonian of electrons and phonons. Electronic states of a system are described by the tight-binding model. Expressions for Green’s functions and electrical conductivity are derived using the diagram method. Equations are obtained for the vertex parts of the mass operators of the electron–electron and electron–phonon interactions. A system of exact equations is obtained for the spectrum of elementary excitations in a crystal. This makes it possible to perform

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24

Rossiter, PL. "Conduction Electron Scattering in Alloys." Australian Journal of Physics 39, no. 4 (1986): 529. http://dx.doi.org/10.1071/ph860529.

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The aim of this review is to present a simple physical picture which shows how the electrical resistivity of a system depends upon the spatial extent and lifetime of the scattering disturbance measured in relation to the conduction electron mean free path and relaxation time. The contribution from spin fluctuations associated with isolated magnetic impurities is discussed on the basis of this model and it is shown that at temperatures below the characteristic spin fluctuation temperature the impurity acts as though it were nonmagnetic. Some results are given for both 'Kondo' (Anderson) and exc

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25

Watanabe, Hirofumi, Tohru Kawarabayashi, and Yoshiyuki Ono. "Electron Diffusion in a Two-Dimensional Disordered Symplectic System with Electron–Phonon Interactions." Journal of the Physical Society of Japan 74, no. 4 (2005): 1240–44. http://dx.doi.org/10.1143/jpsj.74.1240.

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26

Chen, Xian Lan, Zi Yue Zhang, Ju Cheng Zhang, et al. "Photosensitization of Colloidal ZnO Semiconductor System with Hypocrellin A." Advanced Materials Research 528 (June 2012): 168–71. http://dx.doi.org/10.4028/www.scientific.net/amr.528.168.

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UV-visible spectroscopy and fluorescence quenching measurements have been employed to study electron transfer from excited Hypocrellin A (HA) into the conduction band of a colloidal ZnO semiconductor. The adsorption of HA on the surface of ZnO colloidal particles and the electron transfer process from its singlet excited state to the conduction band of colloidal ZnO semiconductor were examined under experimental conditions. Exciting HA with visible light could induce electron transfer from its singlet excited state into conduction band of colloidal ZnO semiconductor. Adsorption of HA onto the

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27

Rauh, Alexander. "Analytical Localization Lengths in an One-Dimensional Disordered Electron System." Zeitschrift für Naturforschung A 64, no. 3-4 (2009): 205–21. http://dx.doi.org/10.1515/zna-2009-3-407.

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Abstract Analytical approximations of the Lyapunov exponent are derived for a random displacement model with equal potential barriers and random positions of the scatterers. Two asymptotic regions are considered corresponding to high and low reflectivity of the single scattering potential. The analytical results are in terms of a distribution function W for certain phases of the transfer matrices. A functional equation for W is derived and numerically solved. This serves to validate the analytical asymptotic formulas which turn out to be accurate in the high and low reflectivity regions with d

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28

Nakaema, Marcelo K. K., and Rosemary Sanches. "Electron transfer in a disordered polymeric system: fluorescence spectroscopy study." Chemical Physics Letters 307, no. 5-6 (1999): 367–72. http://dx.doi.org/10.1016/s0009-2614(99)00527-8.

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29

Yong-Hong, Yang, Wang Yong-Gang, and Liu Mei. "Hall Conductivity in a Quasi-Two-Dimensional Disordered Electron System." Communications in Theoretical Physics 37, no. 4 (2002): 495–98. http://dx.doi.org/10.1088/0253-6102/37/4/495.

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30

Yang, G. C. S. "Electron localisation with the Coulomb effect in a disordered system." Journal of Physics C: Solid State Physics 20, no. 16 (1987): L335—L339. http://dx.doi.org/10.1088/0022-3719/20/16/003.

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31

TURIK, A. V., G. S. RADCHENKO, A. I. CHERNOBABOV, and A. G. KHASABOV. "Disordered Ferroelectric Systems: Giant Dielectric Enhancement, Maxwell-Wagner Relaxations and Conductor–Insulator Transition." Ferroelectrics 307, no. 1 (2004): 171–76. http://dx.doi.org/10.1080/00150190490492925.

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32

Landacanovas, AR, and LC Oterodiaz. "A Transmission Electron Microscopy Study of the MnS-Er2S3 System." Australian Journal of Chemistry 45, no. 9 (1992): 1473. http://dx.doi.org/10.1071/ch9921473.

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A systematic search mainly by means of electron diffraction and microscopy techniques was performed to elucidate the structural behaviour of the Mn-Er-S ternary system at 1373-1773 K. At 1773 K a new phase MnEr2S4 with spinel structure, a = 11.97(2) � , was found. It transforms, due to electron beam damage (400 kV), into rock-salt (α-MnS ) domains and slabs of defects formed by some unit cells of MnEr2S4 (CaTi2O4 type) and MnEr4S7 (Y5S7 type) structures. The composition range between MnEr4S7 (S/M = 1.333) and MnEr4S7 (S/M = 1.400) is covered quasi-continuously by ordered and disordered intergr

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33

El Kharbachi, Abdelouahab, Julia Wind, Amund Ruud, et al. "Pseudo-ternary LiBH4·LiCl·P2S5 system as structurally disordered bulk electrolyte for all-solid-state lithium batteries." Physical Chemistry Chemical Physics 22, no. 25 (2020): 13872–79. http://dx.doi.org/10.1039/d0cp01334j.

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LiCl<sub>1−x</sub>(BH<sub>4</sub>)<sub>x</sub> stabilized by P<sub>2</sub>S<sub>5</sub> addition with high Li<sup>+</sup> conduction; further operando XRD in transmission mode of a solid-state battery demonstrated.

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34

GODA, MASAKI, MARK YA AZBEL, and HIROAKI YAMADA. "NON-EXPONENTIALLY LOCALIZED STATES IN A TWO-DIMENSIONAL DISORDERED SYSTEM?" International Journal of Modern Physics B 13, no. 21n22 (1999): 2705–25. http://dx.doi.org/10.1142/s0217979299002605.

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We study the length L dependence of the forward component of the transfer matrix for an electron passing through a strip with δ-function impurity potentials, with particular attention to the slowest growth-rate characteristic. In the first step of our microscopic study we obtain the inverse localization length for low energy electron in a weakly perturbed system. We show by considering an ensemble averaged mixed tensor a critical energy dividing exponential localization and non-exponential localization in the two-dimensional disordered system.

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35

YANG, Y. H. "MAGNETIC SCATTERING EFFECTS IN A QUASI-TWO-DIMENSIONAL DISORDERED ELECTRON SYSTEM." Modern Physics Letters B 14, no. 27n28 (2000): 995–1000. http://dx.doi.org/10.1142/s0217984900001257.

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The weak-localization correction to the conductivity for a quasi-two-dimensional disordered electron system is calculated in the presence of magnetic impurity scatterings. The analytical result is obtained as a function of the magnetic scattering time, and the interesting magnetic-scattering-dependent crossover behavior from 3D to 2D is discussed.

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36

Mareš, J. J., J. Krištofik, P. Hubík, X. Feng, J. Novák, and S. Hasenöhrl. "Highly disordered two-dimensional electron system in a weak magnetic field." Europhysics Letters (EPL) 45, no. 3 (1999): 374–80. http://dx.doi.org/10.1209/epl/i1999-00174-3.

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37

Felderhof, B. U., and A. Kauerauf. "Electron spectral density in a disordered system of hard sphere scatterers." Physica A: Statistical Mechanics and its Applications 220, no. 3-4 (1995): 376–89. http://dx.doi.org/10.1016/0378-4371(95)00218-v.

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38

Slavin, V. "Low-temperature thermodynamic properties of one-dimensional disordered electron lattice system." physica status solidi (b) 241, no. 13 (2004): 2928–37. http://dx.doi.org/10.1002/pssb.200402069.

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39

NEILSON, DAVID. "DISSIPATIVE PROCESSES IN LOW DENSITY STRONGLY INTERACTING 2D ELECTRON SYSTEMS." International Journal of Modern Physics B 24, no. 25n26 (2010): 4946–60. http://dx.doi.org/10.1142/s0217979210057122.

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A glassy phase in disordered two dimensional (2D) electron systems may exist at low temperatures for electron densities lying intermediate between the Fermi liquid and Wigner crystal limits. The glassy phase is generated by the combined effects of disorder and the strong electron-electron correlations arising from the repulsive Coulomb interactions. Our approach here is motivated by the observation that at low electron densities the electron pair correlation function, as numerically determined for a non-disordered 2D system from Monte Carlo simulations, is very similar to the pair correlation

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40

Repetsky, S., I. Vyshyvana, S. Kruchinin, and S. Bellucci. "Tight-binding model in the theory of disordered crystals." Modern Physics Letters B 34, no. 19n20 (2020): 2040065. http://dx.doi.org/10.1142/s0217984920400655.

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This paper presents a new method of describing electronic spectrum, thermodynamic potential, and electrical conductivity of disordered crystals based on the Hamiltonian of multi-electron system and diagram method for Green’s functions finding. Electronic states of a system were described by multi-band tight-binding model. The Hamiltonian of a system is defined on the basis of the wave functions of electron in the atom nucleus field. Electrons scattering on the oscillations of the crystal lattice are taken into account. The proposed method includes long-range Coulomb interaction of electrons at

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41

Kruchinin, Sergei P., Roberts I. Eglitis, Vitaliy P. Babak, Iryna G. Vyshyvana, and Stanislav P. Repetsky. "Effects of Electron Correlation inside Disordered Crystals." Crystals 12, no. 2 (2022): 237. http://dx.doi.org/10.3390/cryst12020237.

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We propose a novel approach for characterising the electron spectrum of disordered crystals constructed from a Hamiltonian of electrons as well as phonons and a diagram approach for Green’s function. The system’s electronic states were modelled by means of the multi-band, tight-binding approach. The system’s Hamiltonian is described based on the electron wave functions at the field of the atom nucleus. Our novel approach incorporates the long-range Coulomb interplay of electrons located in different lattice positions. Explicit interpretations of Green’s functions are derived using a diagram me

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42

Loktev, V. M., S. G. Sharapov, and H. Beck. "Spectral function and character of the motion of a conduction electron in an orientationally disordered molecular cryocrystal." Low Temperature Physics 28, no. 3 (2002): 220–26. http://dx.doi.org/10.1063/1.1468528.

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43

Prasad, B. L. V., and T. P. Radhakrishnan. "Potassium-graphite-tetracyanoethylene ternary intercalation compounds — modified conduction electron spin system." Synthetic Metals 81, no. 1 (1996): 9–13. http://dx.doi.org/10.1016/0379-6779(96)80223-2.

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44

Yang, Y. H. "Spin-orbit scattering effects in a quasi-two-dimensional disordered electron system." Physica B: Condensed Matter 305, no. 2 (2001): 143–46. http://dx.doi.org/10.1016/s0921-4526(01)00608-1.

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45

Slavin, V. V. "Low-temperature thermodynamic properties of a one-dimensional disordered electron lattice system." Solid State Communications 131, no. 6 (2004): 355–58. http://dx.doi.org/10.1016/j.ssc.2004.06.001.

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46

Yang, Y. H. "Spin-dependent scattering effects in a quasi-two-dimensional disordered electron system." Solid State Communications 118, no. 4 (2001): 199–202. http://dx.doi.org/10.1016/s0038-1098(01)00048-5.

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47

Zhao, Ying, and Jiawei Wang. "Variable Range Hopping Model Based on Gaussian Disordered Organic Semiconductor for Seebeck Effect in Thermoelectric Device." Micromachines 13, no. 5 (2022): 707. http://dx.doi.org/10.3390/mi13050707.

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We investigate the carrier concentration dependent Seebeck coefficient in Gaussian disordered organic semiconductors (GD-OSs) for thermoelectric device applications. Based on the variable-range hopping (VRH) theory, a general model predicting the Seebeck effect is developed to reveal the thermoelectric properties in GD-OSs. The proposed model could interpret the experimental data on carrier concentration- and temperature-dependence of the Seebeck coefficient, including various kinds of conducting polymer film and small molecule based field-effect transistors (FETs). Compared with the conventio

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48

DUC, HUYNH THANH, and NGUYEN TOAN THANG. "MAGNETIC IMPURITY IN A SYSTEM OF INTERACTING ELECTRONS." Modern Physics Letters B 13, no. 24 (1999): 849–58. http://dx.doi.org/10.1142/s0217984999001044.

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The Kondo effect of the Anderson impurity in a correlated conduction electron system is studied with the slave boson mean-field theory. The interacting conduction electrons are described by a Hubbard model with an interaction of strength U. It is shown that the Kondo temperature T K decreases with an increase of U. In the intermediate regime at half-filling, the exponential scale of the Kondo temperature T K is already lost at the saddle-point level of slave boson formulation.

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49

GROSU, I., M. CRISAN, and I. TIFREA. "MAGNETIC SUSCEPTIBILITY OF A DISORDERED HIGH TEMPERATURE SUPERCONDUCTOR." Modern Physics Letters B 10, no. 14 (1996): 635–41. http://dx.doi.org/10.1142/s0217984996000705.

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The temperature and the disorder dependence of the magnetic susceptibility of electrons interacting with spin fluctuations has been calculated. The system is considered to be two-dimensional and the dynamical susceptibility correspond to a strongly correlated electron system in the presence of weak disorder. We obtain deviations from Pauli paramagnetism which are in good agreement with experimental data.

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50

Queenan, R. B., and P. K. Davies. "A transmission electron microscopic study of structural transitions in fast ionic conductors." Proceedings, annual meeting, Electron Microscopy Society of America 45 (August 1987): 156–57. http://dx.doi.org/10.1017/s0424820100125713.

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Na ß“-alumina (Na1.67Mg67Al10.33O17) is a non-stoichiometric sodium aluminate which exhibits fast ionic conduction of the Na+ ions in two dimensions. The Na+ ions can be exchanged with a variety of mono-, di-, and trivalent cations. The resulting exchanged materials also show high ionic conductivities.Considerable interest in the Na+-Nd3+-ß“-aluminas has been generated as a result of the recent observation of lasing in the pulsed and cw modes. A recent TEM investigation on a 100% exchanged Nd ß“-alumina sample found evidence for the intergrowth of two different structure types. Microdiffractio

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