Charge Dynamics in Low Dimensional Prototype Correlated Systems : a View with High-energy X-rays
Author: Md-Zahid Hasan
Publisher:
Published: 2001
Total Pages: 282
ISBN-13:
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Author: Md-Zahid Hasan
Publisher:
Published: 2001
Total Pages: 282
ISBN-13:
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Publisher:
Published: 2002
Total Pages: 5
ISBN-13:
DOWNLOAD EBOOKThe electronic structure of Mott systems continues to be an unsolved problem in physics despite more than half-century of intense research efforts. Well-developed momentum-resolved spectroscopies such as photoemission and neutron scattering cannot directly address problems associated with the full Mott gap as angle-resolved photoemission probes the occupied states and neutrons do not couple to the electron's charge directly. Our observation of dispersive particle- hole pair excitations across the charge gap (effective Mott gap) in several low dimensional prototype Mott insulators using high resolution resonant inelastic x-ray scattering suggests that the excitations across the gap are highly anisotropic and momentum dependent. The results indirectly provide some information about the momentum dependence of unoccupied states in these correlated systems. The x-ray scattering results are complementary to the electron scattering results by the possibility of studying the excitations in the high momentum transfer regimes (near the zone boundaries and comers). This is also demonstrated in case of studying plasmons near the wave vector regime where Landau damping starts to dominate. X-ray scattering also allows one to probe the symmetry characters of localized electrons and the excitations through the strong polarization dependence of scattering near a core resonance. The study of charge-orbital localization is demonstrated in case of manganese oxides. Given its deeply bulk-sensitive and weak-coupling nature and the ability to probe dispersive behavior of charge fluctuations over several Brillouin zones, inelastic x-ray scattering shows the promise to become an important experimental tool to study the electronic structure of complex quantum systems.
Author:
Publisher:
Published: 2002
Total Pages: 858
ISBN-13:
DOWNLOAD EBOOKAuthor: Stanford University
Publisher:
Published: 2002
Total Pages:
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Publisher:
Published: 2001
Total Pages: 776
ISBN-13:
DOWNLOAD EBOOKAuthor: Alexander Altland
Publisher: Cambridge University Press
Published: 2010-03-11
Total Pages: 785
ISBN-13: 0521769752
DOWNLOAD EBOOKThis primer is aimed at elevating graduate students of condensed matter theory to a level where they can engage in independent research. Topics covered include second quantisation, path and functional field integration, mean-field theory and collective phenomena.
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Publisher:
Published: 1995
Total Pages: 464
ISBN-13:
DOWNLOAD EBOOKAuthor: José L. Morán-López
Publisher: Springer Science & Business Media
Published: 2001-05-31
Total Pages: 466
ISBN-13: 0306465663
DOWNLOAD EBOOKThis book contains contributions on some of the most important and current topics on the physics of low dimensional systems. The main emphasis is on the magnetic properties of surfaces, thin films, and atomic clusters. State-of-the-art techniques are discussed in detail. Techniques for the production and measurement of nanostructures are discussed, and pioneering contributions on the effect on health of these particles are presented. Important studies on semiconductor nanostructures are addressed as well as aerosol systems.
Author: Tze-Chien Sum
Publisher: John Wiley & Sons
Published: 2019-03-25
Total Pages: 312
ISBN-13: 3527341110
DOWNLOAD EBOOKReal insight from leading experts in the field into the causes of the unique photovoltaic performance of perovskite solar cells, describing the fundamentals of perovskite materials and device architectures. The authors cover materials research and development, device fabrication and engineering methodologies, as well as current knowledge extending beyond perovskite photovoltaics, such as the novel spin physics and multiferroic properties of this family of materials. Aimed at a better and clearer understanding of the latest developments in the hybrid perovskite field, this is a must-have for material scientists, chemists, physicists and engineers entering or already working in this booming field.
Author: National Research Council
Publisher: National Academies Press
Published: 2003-05-11
Total Pages: 177
ISBN-13: 030908637X
DOWNLOAD EBOOKRecent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as supernovae and black holes. These advances will also benefit inertial confinement fusion research and the nation's nuclear weapon's program. The report describes the major research facilities on which such high energy density conditions can be achieved and lists a number of key scientific questions about high energy density physics that can be addressed by this research. Several recommendations are presented that would facilitate the development of a comprehensive strategy for realizing these research opportunities.