[PDF] Top 20 Electron transport in low dimensional disordered systems

... Structure is found in the electrical conductivity, thermal conductivity and thermopower when plotted as a function of chemical potential, due to the lateral quantisation of the electron [r] ... See full document

... closed regime shows almost no change at the corresponding temperature or magnetic field. The rich experimental features (phenomena in contradiction with a simple, non-interacting model are seen in almost all observables, ... See full document

... The most impactful results of the dissertation are presented in Chapters 5 and 6. First, the mathematical and physical consistency conditions for heat carrier modes are derived in Chapter 5. It is shown that a real ... See full document

... highest electron mobilities, is then ...electronic transport, we derive Mott’s formula, a relatively simple expression of low-temperature thermopower in terms of often measurable ... See full document

... pseudopotentials of both of our elements. To examine this question we look at the Animalu-Heine pseudopotentials. If we were to change the value of A for the two elements so that the resistivity matched experimental data ... See full document

... Figure 3(b) shows the simulated gate-modulation signals for τ = 33 ps, the value obtained from dc conductivity meas- urements. The simulated resonances are clearly narrower than the experimentally observed ones, ... See full document

... in low-dimensional systems, but it is also of great interest from the technological point of view since the achievement of modern nanofabrication technology allows one to access and utilize such ... See full document

... coupled electron density oscillations, spin wave excitations and excitonic excitations (in insulators) inside a ...[SL] systems such as quantum well [QWell], quantum wire [QWire] and quantum dot [QDot] ... See full document

... acoustic low- energy phonons (see ...ballistic transport dictates that the thermal conductivity increases linearly with channel length, while saturation comes due to ...diffusive transport which was ... See full document

... the electron-LO phonon scattering rate on the G a A s well widths and, as would be expected, the ‘confinement’ o f the optical phonon modes is more important for systems with narrow layers o f G aA ... See full document

... the low spin state, we used constrained magnetization at ...constrained low spin structure is energetically a little bit lower than conventional LSDA ...constrained low spin structures as our ... See full document

... for transport properties, we treat roughness atomistically, which is essential to study transport in narrow ...function transport calculations) almost computationally impossible, whereas the force ... See full document

... than the drag resistance predicted by the vortex picture. Also, we find the sign of the drag resistance is the opposite of that of the single layer resistance, as expected. The answer we find should not depend crucially on ... See full document

... where is the momentum of the i-th ion, Mi is the mass of i-th ion, and Vion is the interaction of the collection of ions, which is assumed to be through the direct ion-ion coupling Vion-ion(R^ — R*/) that depends only on ... See full document

... The topic of this thesis lies at the crossroads of two broad research areas in condensed matter physics. The first one is low temperature physics studying matter at temperatures close to absolute zero. At those ... See full document

... Production of all four enzymes and at least one of the transport systems (low K , urea active transport) is induced by allophanate, the last pathway intermediate (COOPER and[r] ... See full document

... minimum electron beam size, corresponding to closure of the ring (as demonstrated in ref- erence [22]) is ∼ 40 ...fast electron beam ...annular transport pattern with a smaller ... See full document

... The coupling of the gyration radii with the internal kinematic rotation, via the non- Euclidean metric of the internal space, induces an “internal centrifugal force” in the space spanned by the gyration radii. This ... See full document

... The summation property has been demonstrated in a number of experimental systems (Groen et al., 1982b, 1983; Salter et al., 1986; Torres et al., 1986). The implication of this theorem is that the enzyme with the ... See full document

... at low lattice temperature and carrier concentration of interest here, the effect of screening of the electron ensemble and degeneracy of electron system must be considered in developing the theory ... See full document