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A High Resolution Study Of The Electronic Structure Of Nbse3 In Normal And Charge Density Wave States With Angle Resolved Photoemission Spectroscopy
Download A High Resolution Study Of The Electronic Structure Of Nbse3 In Normal And Charge Density Wave States With Angle Resolved Photoemission Spectroscopy full books in PDF, epub, and Kindle. Read online A High Resolution Study Of The Electronic Structure Of Nbse3 In Normal And Charge Density Wave States With Angle Resolved Photoemission Spectroscopy ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis A High-resolution Study of the Electronic Structure of NbSe3 in Normal and Charge Density Wave States with Angle Resolved Photoemission Spectroscopy by : Matthew Paul Rocha
Download or read book A High-resolution Study of the Electronic Structure of NbSe3 in Normal and Charge Density Wave States with Angle Resolved Photoemission Spectroscopy written by Matthew Paul Rocha and published by . This book was released on 2003 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1985 with total page 1218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Journal of the Physical Society of Japan by :
Download or read book Journal of the Physical Society of Japan written by and published by . This book was released on 2007 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 1991 with total page 2470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electronic Structure of the YH[sub]3[/sub] Phase from Angle-Resolved Photoemission Spectroscopy by :
Download or read book Electronic Structure of the YH[sub]3[/sub] Phase from Angle-Resolved Photoemission Spectroscopy written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electronic Structure Studies of YBa[sub 2]Cu[sub 3]O[sub X](6. 2 [le] X [le] 6. 9) Using Angle Resolved Photoemission by :
Download or read book Electronic Structure Studies of YBa[sub 2]Cu[sub 3]O[sub X](6. 2 [le] X [le] 6. 9) Using Angle Resolved Photoemission written by and published by . This book was released on 1992 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using high resolution angle resolved photoemission, the electronic structure of YBa[sub 2]Cu[sub 3]O[sub x] is examined when oxygen stoichiometries are varied in the range 6.2 [le] [times] [le] 6.9. Detailed measurements of the Fermi surface for YBa[sub 2]Cu[sub 3]O[sub 6.9] are presented and are compared with predictions of band theory. In the metallic region of the phase diagram, changes in the Fermi surfaces are measured as a function of oxygen stoichiometry. The electronic structure is monitored as the oxide changes from a metal to a semiconductor with additional oxygen depletion. For intermediate stoichiometries, effects of oxygen vacancy ordering are considered. Unusual resonant effects observed at several photon energies are examined as oxygen content is varied.
Book Synopsis Electronic Structure Studies of YBa2Cu3O3 6.2 D"x D"6.9) Using Angle Resolved Photoemission by :
Download or read book Electronic Structure Studies of YBa2Cu3O3 6.2 D"x D"6.9) Using Angle Resolved Photoemission written by and published by . This book was released on 1992 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using high resolution angle resolved photoemission, the electronic structure of YBa2Cu3Ox is examined when oxygen stoichiometries are varied in the range 6.2 ≤ × ≤ 6.9. Detailed measurements of the Fermi surface for YBa2Cu3O{sub 6.9} are presented and are compared with predictions of band theory. In the metallic region of the phase diagram, changes in the Fermi surfaces are measured as a function of oxygen stoichiometry. The electronic structure is monitored as the oxide changes from a metal to a semiconductor with additional oxygen depletion. For intermediate stoichiometries, effects of oxygen vacancy ordering are considered. Unusual resonant effects observed at several photon energies are examined as oxygen content is varied.
Download or read book Physics Briefs written by and published by . This book was released on 1982 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Density Waves In Solids by : George Gruner
Download or read book Density Waves In Solids written by George Gruner and published by CRC Press. This book was released on 2018-03-08 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: ?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.
Book Synopsis Electronic Structure, Dirac Points and Fermi Arc Surface States in Three-dimensional Dirac Semimetal Na3Bi from Angle-resolved Photoemission Spectroscopy*Project Supported by the National Natural Science Foundation of China (Grant No. 11574367), the National Basic Research Program of China (Grant Nos. 2013CB921700, 2013CB921904, and 2015CB921300), and the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB07020300). The Synchrotron Radiation Experiments Have Been Done Under the HiSOR Proposal Numbers, 12-B-47 and 13-B-16 by :
Download or read book Electronic Structure, Dirac Points and Fermi Arc Surface States in Three-dimensional Dirac Semimetal Na3Bi from Angle-resolved Photoemission Spectroscopy*Project Supported by the National Natural Science Foundation of China (Grant No. 11574367), the National Basic Research Program of China (Grant Nos. 2013CB921700, 2013CB921904, and 2015CB921300), and the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB07020300). The Synchrotron Radiation Experiments Have Been Done Under the HiSOR Proposal Numbers, 12-B-47 and 13-B-16 written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The three-dimensional (3D) Dirac semimetals have linearly dispersive 3D Dirac nodes where the conduction band and valence band are connected. They have isolated 3D Dirac nodes in the whole Brillouin zone and can be viewed as a 3D counterpart of graphene. Recent theoretical calculations and experimental results indicate that the 3D Dirac semimetal state can be realized in a simple stoichiometric compound A 3 Bi ( A = Na, K, Rb). Here we report comprehensive high-resolution angle-resolved photoemission (ARPES) measurements on the two cleaved surfaces, (001) and (100), of Na3 Bi. On the (001) surface, by comparison with theoretical calculations, we provide a proper assignment of the observed bands, and in particular, pinpoint the band that is responsible for the formation of the three-dimensional Dirac cones. We observe clear evidence of 3D Dirac cones in the three-dimensional momentum space by directly measuring on the k x – k y plane and by varying the photon energy to get access to different out-of-plane k z s. In addition, we reveal new features around the Brillouin zone corners that may be related with surface reconstruction. On the (100) surface, our ARPES measurements over a large momentum space raise an issue on the selection of the basic Brillouin zone in the (100) plane. We directly observe two isolated 3D Dirac nodes on the (100) surface. We observe the signature of the Fermi-arc surface states connecting the two 3D Dirac nodes that extend to a binding energy of ∼150 meV before merging into the bulk band. Our observations constitute strong evidence on the existence of the Dirac semimetal state in Na3 Bi that are consistent with previous theoretical and experimental work. In addition, our results provide new information to clarify on the nature of the band that forms the 3D Dirac cones, on the possible formation of surface reconstruction of the (001) surface, and on the issue of basic Brillouin zone selection for the (100) surface.
Book Synopsis Electronic Structure of CeB 6 Studied by 3d XPS and High-resolution 4d-4f Resonant Photoemission by : Akito Kakizaki
Download or read book Electronic Structure of CeB 6 Studied by 3d XPS and High-resolution 4d-4f Resonant Photoemission written by Akito Kakizaki and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photoemission Study of MnBi and GdNi2Ge2 by : Derek Paul Brammeier
Download or read book Photoemission Study of MnBi and GdNi2Ge2 written by Derek Paul Brammeier and published by . This book was released on 2001 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoelectron spectroscopy was performed on single crystals of MnBi and GdNi2Ge2 utilizing synchrotron radiation as the light source. MnBi is known for its large magneto-optical Kerr rotation and GdNi2Ge2 is studied for its intriguing magnetic properties at low temperature, including a spin density wave (SDW) that is reported to occur at 27.1 K. Angle resolved photoemission was used to investigate the electronic band structures of both materials. Resonant photoemission was used to characterize valence band features. The shallow core levels were also investigated using angle integrated photoemission. Results from MnBi measurements are compared with recent theoretical bandstructure and density of states calculations. GdNi2Ge2 results are compared to the theoretical band structure calculations. They support theoretical handling of the Gd-4f levels as being part of the atomic core. The search for the SDW was inconclusive.
Book Synopsis Electron-Phonon Interactions and Phase Transitions by : T. Riste
Download or read book Electron-Phonon Interactions and Phase Transitions written by T. Riste and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NATO Advanced Study Institute was the fourth in a series devoted to the subject of phase transitions and instabilities with particular attention to structural phase transforma~ions. Beginning wi th the first Geilo institute in 19'(1 we have seen the emphasis evolve from the simple quasiharmonic soft mode description within the Landau theory, through the unexpected spectral structure re presented by the "central peak" (1973), to such subjects as melting, turbulence and hydrodynamic instabilities (1975). Sophisticated theoretical techniques such as scaling laws and renormalization group theory developed over the same period have brought to this wide range of subjects a pleasing unity. These institutes have been instrumental in placing structural transformations clearly in the mainstream of statistical physics and critical phenomena. The present Geilo institute retains some of the counter cul tural flavour of the first one by insisting whenever possible upon peeking under the skirts of even the most successful phenomenology to catch a glimpse of the underlying microscopic processes. Of course the soft mode remains a useful concept, but the major em phasis of this institute is the microscopic cause of the mode softening. The discussions given here illustrate that for certain important classes of solids the cause lies in the electron phonon interaction. Three major types of structural transitions are considered. In the case of metals and semimetals, the electron phonon interaction relie6 heavily on the topology of the Fermi surface.
Book Synopsis Electronic Structure of [math][mrow][msub][mi]Ce[/mi][mn]2[/mn][/msub][msub][mi]RhIn[/mi][mn]8[/mn][/msub][/mrow][/math] by :
Download or read book Electronic Structure of [math][mrow][msub][mi]Ce[/mi][mn]2[/mn][/msub][msub][mi]RhIn[/mi][mn]8[/mn][/msub][/mrow][/math] written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We use angle-resolved photoemission spectroscopy (ARPES) to study the 2D heavy fermion superconductor, Ce2RhIn. The Fermi surface is rather complicated and consists of several hole and electron pockets with one of the sheets displaying strong nesting properties with a q-vector of (0.32, 0.32) [pi]/a. We do not observe kz dispersion of the Fermi sheets, which is consistent with the expected 2D character of the electronic structure. Comparison of the ARPES data to band structure calculations suggests that a localized picture of the f-electrons works best. While there is some agreement in the overall band dispersion and location of the Fermi sheets, the model does not reproduce all observed bands and is not completely accurate for those it does. As a result, our data paves the way for improving the band structure calculations and the general understanding of the transport and thermodynamical properties of this material.
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