Insulator-metal Phase Transition
Thermal metal-insulator transition in a helical topological superconductor
... metallic phase develops in between the insulating phases so that the switch from Q = +1 to Q = −1 occurs via two metal-insulator ...The phase diagram is shown in ...
8
The metal insulator transition in doped semiconductors : an ab initio approach
... The estimate of ν from the two-band Anderson model could also be useful in establishing whether the estimate ν ≈ 0.5 at the Fermi energy is a band-related effect. As mentioned in Ch. 1 for the experimental results, this ...
149
Carrier Induced Magnetic Solitons and Metal Insulator Transition in Diluted Magnetic Semiconductors Ga1 xMnxAs
... prevent phase separation, these materials should be grown at low temperature ( T from 200˚C to 300˚C), which results in an abundance of different types of crystal ...
6
Voltage Tuning Effect on Metal-Insulator Phase Transitions in Vanadium Dioxide Thin Film
... actuated for the transition-voltage dependence study. The results present the transition temperature decrease to 37 °C with 1.5V applied voltage and affecting the slopes transitio n steepness leading to ...
10
Photoluminescence response of colloidal quantum dots on VO2 film across metal to insulator transition
... the abovementioned PL features during MIT. Two such intrinsic mechanisms are known for QDs in literature: en- ergy and charge transfer from/to excited QDs. The above time-resolved PL data may be an evidence against ...
7
Direct detection of metal-insulator phase transitions using the modified Backus-Gilbert method
... Hubbard transition. In this phase, charge transfer is suppressed and the well-defined Fermi surface is completely ...Mott-Hubbard transition such as dynamical mean-field theory (DMFT) [29, ...
8
Suppression of the metal insulator transition in magnetron sputtered Ti2O3 films
... a metal, could be associated with contributions of grain boundaries material, or overall defective nature of the thin ...a metal can lead to the observed conductivity improvements with temperature, as their ...
25
Metal-Insulator Phase Transition and Structural Stability in ‘Sb’ Doped CaMnO3 Perovskite
... In manganites, optimum grain size for preferential orientations the need of the hour for low field magnetoresistance (LFMR) applications at ambience in the applied magnetic field for 100% spin polarization between the ...
8
Striped nanoscale phase separation at the metal-insulator transition of heteroepitaxial nickelates
... Above the MIT, the XAS spectra measured over the full field of view do not display significant variations compared with the noise level of the experiment. Below the MIT, instead, the sample shows different spatially ...
7
Metal-Insulator Transition in Three-Dimensional Semiconductors
... a metal-insulator transition in three-dimensional semiconductors due to doping and find a conventional phase transition, where the effective scattering rate is the order ...The ...
8
Thermal activation of the vortex Mott insulator to metal transition
... nanoscale phase separation involving also the spatial segregation of the spin density, charge density, orbital and local lattice symmetry [6, 7, 8, 9, ...the phase separation ranging from nanoscale to ...
42
Self-organized pseudo-graphene on grain boundaries in topological band insulators
... around the nodes, this gives rise to a random gauge field that only shifts the cones [27]. As long as this shift is smaller than the separation π/d of the cones in the BZ, the semi-metallic behavior is stable. We have ...
14
Studies of two dimensional electron systems via surface acoustic waves and nuclear magnetic resonance techniques
... spin transition in the half- filled Landau level, observation of a spin transition in a correlated bilayer 2DES, and measurements of electron spin dynamics near the lowest filled Landau level in a single ...
199
Control of Structural and Electrical Transitions in VO2 Thin Film Heterostructures.
... depicted in Figure 5.6. The reason behind this difference will be discussed later. The original position for (020) peaks for monoclinic and tetragonal phases is supposed to be at 2θ=39.88 and 2θ=39.14, respectively. The ...
276
Metal-insulator-semiconductor-insulator-metal structure of TiO2/SiO2 Thin Films for Ultraviolet (UV) Photodetectors
... Fig. 3a shows the optical transmittance obtained from the TiO2 thin films are under various temperatures heat treatment. The transparency of the film increased more than 2% between near UV and visible after annealing ...
8
A THEORETICAL STUDY OF SUPER FLUID ? INSULATOR PHASE TRANSITION IN A GAS OF ULTRA COLD ATOMS AND EVALUATION OF ATOM DENSITY DISTRIBUTION AS A FUNCTION OF DISTANCE FROM THE CENTRE OF TRAP (R/A) USING BOSE-HUBBARD MODEL
... quantum phase transition between super fluid (SF) and Mott insulator (MI) phase showed that one can control the parameters of the model at ...prohibits phase transition in a ...
12
Fate of the Bose insulator in the limit of strong localization and low Cooper-pair density in ultrathin films
... to insulator transitions [9,33] controlled by lattice depth and/or the interaction potential that are similar to the SIT in films add weight to this ...pair insulator can cross over to an electron ...
6
A THEORETICAL STUDY OF BOSE GAS TRAPPED IN A 3D COMBINED HARMONIC-OPTICAL POTENTIAL AND AN EVALUATION OF EFFECTIVE SIZE AND EXPANSION ENERGY OF A BOSE-EINSTEIN CONDENSATE IN A 3D NON-CUBIC OPTICAL LATTICE
... Mott insulator (MI) phase transition 1 ...the phase coherent Bose Einstein condensate (BEC) in the optical lattice is a super fluids (SF) 2 ...fluid-Mott insulator quantum phase ...
15
Synthesis of Transition Metal Dichalcogenides from Solid Phase Precursors
... pre-deposited metal and chalcogen layers may yield films with much larger grain ...for phase-change ...composition metal targets, prior to Te ...
200
Active Metal Insulator Metal Plasmonic Devices
... using metal organic chemical vapor deposition, molecular beam epitaxy, atomic layer deposition, pulsed laser deposition, chemical solution deposition, and sol-gel ...
166