metal-insulator phase transition
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 ...
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Direct detection of metal-insulator phase transitions using the modified Backus-Gilbert method
... (semi)metal-insulator phase transition can be extremely difficult if the local order parameter which characterizes the ordered phase is ...semimetal phase and the antiferromagnetic ...
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Correlating the energetics and atomic motions of the metal-insulator transition of M1 vanadium dioxide
... reversible metal-insulator transitions are obvious candidates for new generations of ...the metal-insulator transition of vanadium dioxide and the atomic motions occurring using first ...
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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 ...
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Imaging and Harnessing Percolation at the Metal–Insulator Transition of NdNiO 3 Nanogaps
... obtained by the current pulse measurement in the resistivity module of a Quantum Design Dynacool. The van der Pauw geometry was used to obtain the resistivity () of the bare NNO films before fabrication of the NNO ...
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Voltage Tuning Effect on Metal-Insulator Phase Transitions in Vanadium Dioxide Thin Film
... the metal-insulator transition (MIT) temperature through an electrical signal is a main drawback for the development of integrated measuring systems (Shao Z et ...
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Microscopic description of insulator-metal transition in high-pressure oxygen
... Mott-Hubbard insulator, the insulating state arises because electron hopping from one site to another is inhibited by intra- and inter-orbital Coulomb ...Mott insulator, ...liquid metal Figure 1. ...
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Suppression of the metal insulator transition in magnetron sputtered Ti2O3 films
... – 13.9 Å and a = 5.02 – 5.08 Å giving c/a = 2.72 – 2.76 that is well above the value corresponding to the semiconductor to metal transition region (c/a = 2.68 – 2.70, [2]). The recent calculation [25] ...
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On the factors affecting the high temperature insulator-metal transition in rare-earth manganites
... series of compounds displays a number of fascinating phenomena like colossal magnetoresistance (CMR), charge ordering (CO), magnetic field driven insulator-metal transition, electronic phase ...
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The metal insulator transition in doped semiconductors : an ab initio approach
... use the diamond lattice, which has a lower connectivity ( Z = 4), compared to the three-dimensional simple cubic lattice (Z = 6). This should change the value of the critical disorder, as already observed by Anderson ...
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Photoluminescence response of colloidal quantum dots on VO2 film across metal to insulator transition
... We have probed the phase transition in the vanadium diox- ide film decorated with colloidal quantum dots measuring a temperature dependence of PL response. Characteristic temperatures derived from PL ...
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Micrometer x-ray diffraction study of VO2 films: Separation between metal-insulator transition and structural phase transition
... structural phase transition 共 SPT 兲 are simultaneously monitored for VO 2 films by current-voltage curve and diffraction measurements using a synchrotron micro-x-ray ...and metal phase between ...
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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 ...
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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 ...
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Isostructural Metal-Insulator Transition in VO\u3csub\u3e2\u3c/sub\u3e
... monoclinic structure’s V-3d orbitals to produce the correct ground state phase. In the middle of the Coulomb correction, fine tuning of U values was made to fit the band gap of the monoclinic phase and the ...
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Striped nanoscale phase separation at the metal-insulator transition of heteroepitaxial nickelates
... MIT. Above 161 K the insulating stripes become narrower and are pinched off by the expanding metallic matrix into many, small and closely spaced nano-domains. These appear to be evenly distributed across the field of ...
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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 ...
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Control of Structural and Electrical Transitions in VO2 Thin Film Heterostructures.
... This interaction depends on the coupling of the laser with the solid. The high energy density laser can melt or evaporate the surface material. Then, the one-dimension heat flow equation with proper boundary condition ...
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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 ...
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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 ...
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