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Arpes Angle Resolved Photoemission Spectroscopy Investigation Of The Valence Band Structure And Band Gap State Of Rutile Ti0110 1x1
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Book Synopsis ARPES (Angle Resolved Photoemission Spectroscopy) Investigation of the Valence Band Structure and Band-gap State of Rutile Ti0(110) - (1x1) by :
Download or read book ARPES (Angle Resolved Photoemission Spectroscopy) Investigation of the Valence Band Structure and Band-gap State of Rutile Ti0(110) - (1x1) written by and published by . This book was released on 2010 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Valence Band Photoemission Studies of Clean Metals by : Paul Sherman Wehner
Download or read book Valence Band Photoemission Studies of Clean Metals written by Paul Sherman Wehner and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Valence Band Photoemission Studies of Clean Metals by :
Download or read book Valence Band Photoemission Studies of Clean Metals written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of Angle-Resolved Photoelectron Spectroscopy (ARPES) to crystalline solids and the utilization of such studies to illuminate several questions concerning the detailed electronic structure of such materials, are discussed. Specifically, by construction of a Direct Transition (DT) model and the utilization of energy-dependent angle-resolved normal photoemission in the photon energy range 32 eV
Book Synopsis Spectroscopy of Complex Oxide Interfaces by : Claudia Cancellieri
Download or read book Spectroscopy of Complex Oxide Interfaces written by Claudia Cancellieri and published by Springer. This book was released on 2018-04-09 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the most recent and compelling experimental results for complex oxide interfaces. The results of this book were obtained with the cutting-edge photoemission technique at highest energy resolution. Due to their fascinating properties for new-generation electronic devices and the challenge of investigating buried regions, the book chiefly focuses on complex oxide interfaces. The crucial feature of exploring buried interfaces is the use of soft X-ray angle-resolved photoemission spectroscopy (ARPES) operating on the energy range of a few hundred eV to increase the photoelectron mean free path, enabling the photons to penetrate through the top layers – in contrast to conventional ultraviolet (UV)-ARPES techniques. The results presented here, achieved by different research groups around the world, are summarized in a clearly structured way and discussed in comparison with other photoemission spectroscopy techniques and other oxide materials. They are complemented and supported by the most recent theoretical calculations as well as results of complementary experimental techniques including electron transport and inelastic resonant X-ray scattering.
Book Synopsis Angle-Resolved Photoemission Studies of Ag, Au, and Pt by :
Download or read book Angle-Resolved Photoemission Studies of Ag, Au, and Pt written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An important question regarding the technique of angle-resolved photoemission (ARP) is the extent to which it can be used to determine experimental valence-band dispersion relations E{sub i}({rvec k}) for single crystalline solids. In the case of the 3d and 4d transition metals, studies of copper, nickel, palladium, and silver, show that a model based on the assumption of direct interband transitions (direct-transition model) may be used, in conjunction with an appropriate final-state dispersion relation E{sub f}({rvec k}), to elucidate E{sub i}({rvec k}) for these materials along several high symmetry lines (primarily [Gamma][Lambda]L) in k-space. To answer this question more generally, we have undertaken an extensive study of the valence band structures of other transition metals along various k-space lines. To date, studies have been extended to the (111) faces of the 5d metals Pt and Au along with the Pt(100) ((5 x 20) surface structure) face, and the (110) and (100) faces of Ag. The experiments were all conducted at SSRL, using synchrotron radiation in the range 6 eV
Book Synopsis Angle-resolved Photoemission Investigations of the Electronic Structure, Fermi Surface and Superconducting Gap of Yttrium Barium Copper Oxide by : Matthias Christian Schabel
Download or read book Angle-resolved Photoemission Investigations of the Electronic Structure, Fermi Surface and Superconducting Gap of Yttrium Barium Copper Oxide written by Matthias Christian Schabel and published by . This book was released on 1997 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Angle-Resolved Photoemission Study of AuGa2 and AuIn2 Intermetallic Compounds by : J. G. Nelson
Download or read book Angle-Resolved Photoemission Study of AuGa2 and AuIn2 Intermetallic Compounds written by J. G. Nelson and published by . This book was released on 1984 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The (001) surfaces of AuGa2 and AuIn2 intermetallic compounds were studied using synchrotron radiation excited angle-resolved photoemission. Spectra collected for photoelectron emission normal to the sample surfaces were used to map the E versus k dispersion relation of both compounds along the delta symmetry line of the bulk Brillouin Zone. The results show that the Au 5d bands of each compound are relatively flat, but the splittings of the bands at gamma are nearly the same as for elemental Au. A surface state is also observed on each surface in a band-gap region about 6 eV below the Fermi levels of the 2 compounds. Originator furnished keywords include: Synchrotron radiation - angle-resolved photoemission - valence band structure - d-bands - surface state.
Book Synopsis Angle Resolved Photoemission Study of Quantum Critical Solids by : Feng Wang
Download or read book Angle Resolved Photoemission Study of Quantum Critical Solids written by Feng Wang and published by . This book was released on 2007 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ARPES Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 (R by :
Download or read book ARPES Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 (R written by and published by . This book was released on 2008 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a detailed angle-resolved photoemission spectroscopy (ARPES) investigation of the RTe3 family, which sets this system as an ideal"textbook" example for the formation of a nesting driven charge density wave (CDW). This family indeed exhibits the full range of phenomena that can be associated to CDWinstabilities, from the opening of large gaps on the best nested parts of Fermi surface (up to 0.4 eV), to the existence of residual metallic pockets. ARPES is the best suited technique to characterize these features, thanks to its unique ability to resolve the electronic structure in k space. An additional advantage of RTe3 is that theband structure can be very accurately described by a simple two dimensional tight-binding (TB) model, which allows one to understand and easily reproduce many characteristics of the CDW. In this paper, we first establish the main features of the electronic structure by comparing our ARPES measurements with the linear muffin-tinorbital band calculations. We use this to define the validity and limits of the TB model. We then present a complete description of the CDW properties and of their strong evolution as a function of R. Using simple models, we are able to reproduce perfectly the evolution of gaps in k space, the evolution of the CDW wave vector with R, and the shape of the residual metallic pockets. Finally, we give an estimation of the CDWinteraction parameters and find that the change in the electronic density of states n (EF), due to lattice expansion when different R ions are inserted, has the correct order of magnitude to explain the evolution of the CDW properties.
Book Synopsis Angle-resolved Photoemission Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 (R by :
Download or read book Angle-resolved Photoemission Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 (R written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a detailed ARPES investigation of the RTe3 family, which sets this system as an ideal 'textbook' example for the formation of a nesting driven Charge Density Wave (CDW). This family indeed exhibits the full range of phenomena that can be associated to CDW instabilities, from the opening of large gaps on the best nested parts of Fermi Surface (FS) (up to 0.4eV), to the existence of residual metallic pockets. ARPES is the best suited technique to characterize these features, thanks to its unique ability to resolve the electronic structure in k-space. An additional advantage of RTe3 is that the band structure can be very accurately described by a simple 2D tight-binding (TB) model, which allows one to understand and easily reproduce many characteristics of the CDW. In this paper, we first establish the main features of the electronic structure, by comparing our ARPES measurements with Linear Muffin-Tin Orbital band calculations. We use this to define the validity and limits of the TB model. We then present a complete description of the CDW properties and, for the first time, of their strong evolution as a function of R. Using simple models, we are able to reproduce perfectly the evolution of gaps in k-space, the evolution of the CDW wave vector with R and the shape of the residual metallic pockets. Finally, we give an estimation of the CDW interaction parameters and find that the change in the electronic density of states n(Ef), due to lattice expansion when different R ions are inserted, has the correct order of magnitude to explain the evolution of the CDW properties.
Book Synopsis Probing the Band Structure of LaTe2 Using Angle Resolvedphotoemission Spectroscopy by : Y. S. Kwon
Download or read book Probing the Band Structure of LaTe2 Using Angle Resolvedphotoemission Spectroscopy written by Y. S. Kwon and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the current interest in the rare-earth tellurides ashigh temperature charge density wave materials, a greater understandingof the physics of these systems is needed, particularly in the case ofthe ditellurides. We report a detailed study of the band structure ofLaTe_2 in the charge density wave state using high-resolution angleresolved photoemission spectroscopy (ARPES). From thiswork we hope toprovide insights into the successes and weaknesses of past theoreticalstudy as well as helping to clear up prior ambiguities by providing anexperimental basis for future work inthe tellurides.
