Local Density of States of the Adsorbate-induced Two-dimensional Electron System Studied at Zero and Strong Magnetic Fields

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ISBN 13 : 9783832220945
Total Pages : 142 pages
Book Rating : 4.2/5 (29 download)

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Book Synopsis Local Density of States of the Adsorbate-induced Two-dimensional Electron System Studied at Zero and Strong Magnetic Fields by : Jan Klijn

Download or read book Local Density of States of the Adsorbate-induced Two-dimensional Electron System Studied at Zero and Strong Magnetic Fields written by Jan Klijn and published by . This book was released on 2003 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Japanese Journal of Applied Physics

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ISBN 13 :
Total Pages : 1340 pages
Book Rating : 4.:/5 (318 download)

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Download or read book Japanese Journal of Applied Physics written by and published by . This book was released on 2003 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

JJAP

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ISBN 13 :
Total Pages : 986 pages
Book Rating : 4.X/5 (6 download)

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Download or read book JJAP written by and published by . This book was released on 2003 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Density Functional Theory of Two-dimensional Electronic Structures in a Magnetic Field

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ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (47 download)

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Book Synopsis Density Functional Theory of Two-dimensional Electronic Structures in a Magnetic Field by : Maurizio Ferconi

Download or read book Density Functional Theory of Two-dimensional Electronic Structures in a Magnetic Field written by Maurizio Ferconi and published by . This book was released on 1995 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the work done in the physics of two-dimensional structures is either limited by the size of the systems that are studied due to the use of exact diagonalization techniques which do not allow to go beyond structures with only few electrons, or by other methods which do not include exchange-correlation effects, or correlation effects only. There are instances in which these effects cannot be neglected. In order to fill this gap we decided to use a density functional approach, which proved to be reliable in other problems. In Chapter 3 I shall present original results on the study of the ground-state properties of quantum dots in the presence of a magnetic field of arbitrary strength obtained within a current-density functional approach. The results obtained agree very well with those obtained by means of exact diagonalization approaches. In the regime not accessible by the latter methods we show how important are exchange-correlation effects, and we also make an analysis of correlation effects, by comparison with Hartree-Fock results. In Chapter 4 we address and study the density profile at the edge of a confined two-dimensional electron gas in the fractional quantum Hall regime. The strong correlation effects are accounted for in a density functional approach. I show that there exists a transition between two regimes as a function of the smoothness of the confining potential. In Chapter 5, we study the magnetophonon dispersion relations of a two-dimensional Wigner crystal in the presence of a strong magnetic field, and of its shear modulus, that we derived within a density functional scheme, that therefore includes correlation effects, and has the advantage of being analytical. In Chapter 6 I present a theory for the calculation of the pinning gap and magnetophonon spectrum of a disordered Wigner crystal. Its main feature resides in the inclusion in the pinning energy of the contribution arising from distortions of the crystal on all length scales.

JJAP Letters

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ISBN 13 :
Total Pages : 458 pages
Book Rating : 4.:/5 (321 download)

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Download or read book JJAP Letters written by and published by . This book was released on 2006 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1110 pages
Book Rating : 4.:/5 (319 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Charge Density Waves in Solids

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Publisher : Springer
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (45 download)

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Book Synopsis Charge Density Waves in Solids by : Gyula Hutiray

Download or read book Charge Density Waves in Solids written by Gyula Hutiray and published by Springer. This book was released on 1985 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron and x-ray scattering study on K0.3MoO3 and other quasi one dimensional conductors -- X-ray study of charge-density wave in K0.30Mo03 under electric fields -- Transmission electron microscopy for imaging and diffraction studies of low dimensional transition metal chalcogenides -- Aspects of charge-density waves in the TaTe4-NbTe4 structures and in 2H-TaSe2 -- Charge density waves, phasing, sliding and related phenomena in NbSe3 and other transition metal chalcogenides -- Structural and electrical properties interpretation through band structure calculations on the (MSe4)nI SERIES (M = Nb, Ta). -- Defects and charge density waves in irradiated layer and chain compounds -- Electron diffraction charge density wave studies in the chalcogenide compounds (MX4)nI -- Neutron studies of the blue bronzes K0.3MoO3 and Rb0.3MoO3 -- The effect of a magnetic field on the discotm1ensurate to commensurate transition in 2H TaSe2 -- High pressure investigation of the cdw phase diagram of 1T-TaS2 -- Landau theory of 2H-TaSe2 -- Multidomain structures of incommensurate phases in CDW states of 2H-TaSe2 -- Electron microscopy of charge density wave defects in 1T-TaS2 and 1T-TaSe2 -- Aspects of strong electron-phonon coupling related to the CDW transition at temperatures above it -- Elastic and other properties at the commensurate-incommensurate transition in 2H-TaSe2 -- CDW phase mode investigation in the FIR in K0.3MaO3 and band structure calculation -- 93Nb NMR study of CDW in (NbSe4)10/3I single crystal -- Electronic Properties and Fe57 Mössbauer measurements of T1+xNb3-xSe10 with T = Fe, Cr -- Transport and Mössbauer studies of the peierls transition in Fe-doped K0.30MoO3 -- Charge density wave instabilities in quasi two-dimensional oxides n-Mo4O11 and ?-Mo4O11 -- Thermal conductivity of layered dichalcogenides -- Tunneling study of commensurate charge density wave states in 1T-TaS2 -- Galvanomagnetic properties of the quasi-two dimensional purple bronze K0.9Mo6O17 -- Non-local elastic forces in charge-density wave systems -- Soliton model of charge-density-wave depinning -- Dynamics of incommensurate structures -- Some problems arising from electrostatic potential in CDW behavior -- The single domain model of charge-density wave transport -- On the microscopic theory of kinetic phenomena in peierls conductors -- Near commensurability effects on charge density wave dynamics -- Shift in the longitudinal sound velocity due to sliding charge density waves -- Microscopic local mechanisms for "Noises" generated by moving CDW -- Phase vortices and CDW conduction noise -- Damping of CDW-condensate motion by interaction with thermal phasons -- Microscopic theory of interaction of CDW with impurities -- Quantum effects in the Josephson approach to a CDW -- Fokker planck theory of the classical charge density wave model with current noise -- Travelling charge density waves : A mean field treatment -- Coherent and incoherent effects in charge density wave transport -- Threshold field, electrical conductivity and time-dependent voltage in transition metal tri- and tetrachalcogenides -- Solitons in TaS3 experiment -- Thermal gradient experiments on the charge-density-wave conduction noise spectrum -- Broadband noise in orthorhombic TaS3 -- High field I-V characteristics of orthorhombic TaS3 -- Inertial dynamics of CDW transport in NbSe3 -- Frequency dependent conductivity of CDW compounds -- AC conductivity of the blue bronze K0.3 MoO3 -- Subharmonic shapiro steps, devil's staircase, and synchronization in RF-driven CDW conductors -- Mode locking and chaos in sliding charge-density-wave systems -- Chaos in charge density wave systems -- Contribution of CDW motion to the hall effect and to the transverse conductivity in TaS3. experiment -- Contribution of CDW motion to the hall effect and to the transverse conductivity. Theory -- Dependence of the elastic modulus of TaS3 on the CDW current -- Low frequency elastic properties of materials containing a sliding CDW -- The conductivity of orthorhombic TaS3 under uniaxial strain -- Ohmic and nonlinear transport of (TaSe4)2I under pressure -- Pinning, metastability and sliding of charge-density-waves -- Distortion, metastability and breaking in charge-density wave transport: Recent experiments on niobium triselenide, suggesting a new mean-field approach -- Bistable configurations of the pinned charge density wave: Random-field-model dynamics observed in rearrangement prior to depinning -- Electric field induced relaxation of metastable states in TaS3 -- Remanent deformation of CDWs -- Relaxation of the deformed cdw state: electric and thermal hysteresis -- Thermal hysteresis in the thermopower of o-TaS3 -- Delayed switching between normal and CDW conducting states in o-TaS3 -- The effect of uniaxial strain on metastable states in TaS3 -- Influence of defects on the metastable states of o-TaS3 -- Charge density wave transport in the blue bronzes K0.30MoO3 and Rb0.30MoO3 : metastability, hysteresis and memory effects -- Effects of irradiation on the blue bronzes K0.30MoO3 and Rb0.30MoO3 -- Relaxation of metastable states in blue bronze K0.3MoO3 -- Incommensurate ferroelectrics -- Commensurate and incommensurate phases of a two-dimensional lattice of superconducting vortices -- (TMTSF)2X compounds: Superconductivity, spin-density waves and anion ordering -- Impurity pinning in quasi-1D superconductivity -- Numerical studies of the effect of a wall on SDW in a jellium -- Pinning of amplitude solitons in Peierls systems with impurities -- New resistive state in low dimensional superconductor TaSe3 -- Switching in cdw systems and in V02 -- A comparative study -- The effect of varying the bandfilling in a Peierls conductor -- Solitons and polarons in a spin density wave chain -- Charge density waves in superionic conductors -- Numerical study of impurity pinning in one-dimensional interacting electron systems -- Multivalued charge-density waves.

Energy Research Abstracts

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ISBN 13 :
Total Pages : 1010 pages
Book Rating : 4.:/5 (319 download)

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Study of D-density Wave States in Strongly Correlated Electron Systems

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ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (892 download)

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Book Synopsis A Study of D-density Wave States in Strongly Correlated Electron Systems by : Chen-Hsuan Hsu

Download or read book A Study of D-density Wave States in Strongly Correlated Electron Systems written by Chen-Hsuan Hsu and published by . This book was released on 2014 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle-hole condensates in the angular momentum l=2 channel, known as d-density wave orders, have been suggested to be realized in strongly correlated electron systems. In this dissertation, we study singlet and triplet $d$-density wave orders with a form factor of d_(x2-y2) as well as a novel topological mixed singlet-triplet d-density wave with a form factor of (i[sigma] d_(x2-y2)+d_(xy)), and discuss the connections of these states to high-temperature superconductors and heavy-fermion materials. In Chapter 2, we discuss the spin susceptibility of the singlet d-density wave, triplet d-density wave, and spin density wave orders with hopping anisotropies. From the numerical calculation, we find nearly vertical dispersion relations for spin excitations with anisotropic incommensurability at low energies in agreement with the inelastic neutron scattering experiments in the pseudogap state of the high-temperature superconductor YBa2Cu3O6.6. The vertical dispersion is a distinct feature of all three density wave states in contrast to the superconducting state, which shows an hourglass shape dispersion experimentally. In Chapter 3, we explore a mixed singlet-triplet d-density wave state in a two-dimensional square lattice, which is topologically nontrivial and exhibits quantum spin Hall effect. We also study the bulk-edge correspondence and Lifshitz transition in the system. In Chapter 4, we show that the skyrmions in the system carry charge 2e and can condense into a superconducting state. The phase transition between the density wave and superconductivity likely leads to deconfined quantum critical points. We suggest connections of this exotic state to the hidden-order state in the heavy-fermion compound URu2Si2. The st-DDW model is generalized to three dimensions in Chapter 5, where we propose a novel pairing mechanism in URu2Si2. We assume the charge 2e skyrmionic spin texture in the mixed singlet-triplet d-density wave state fractionalizes into merons and antimerons at the deconfined quantum critical point. The interaction between these fractional particles results in a spin-singlet chiral d-wave superconducting state consistent with experiments. The unconventional superconductivity breaks time reversal symmetry, so we expect a polar Kerr effect at the onset of the superconductivity, but not in the time-reversal-invariant hidden-order state except perhaps for magnetic impurities.

Physics Briefs

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ISBN 13 :
Total Pages : 1224 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dissertation Abstracts International

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ISBN 13 :
Total Pages : 860 pages
Book Rating : 4.F/5 ( download)

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Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 668 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996-02 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 1216 pages
Book Rating : 4.0/5 ( download)

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Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-06 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemical Abstracts

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ISBN 13 :
Total Pages : 2210 pages
Book Rating : 4.:/5 (318 download)

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Download or read book Chemical Abstracts written by and published by . This book was released on 1990 with total page 2210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

INIS Atomindex

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ISBN 13 :
Total Pages : 870 pages
Book Rating : 4.F/5 ( download)

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Download or read book INIS Atomindex written by and published by . This book was released on 1987 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Density of States in the Two-dimensional Electron Gas and Quantum Dots

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ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.:/5 (64 download)

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Book Synopsis The Density of States in the Two-dimensional Electron Gas and Quantum Dots by : Raymond Cameron Ashoori

Download or read book The Density of States in the Two-dimensional Electron Gas and Quantum Dots written by Raymond Cameron Ashoori and published by . This book was released on 1991 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metals Abstracts

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ISBN 13 :
Total Pages : 1076 pages
Book Rating : 4.E/5 ( download)

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Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: