Annalen der Physik

Cover image for Vol. 523 Issue 1‐2

Special Issue: Special Topic Issue “Optical and Vibrational Spectroscopies”

January 2011

Volume 523, Issue 1-2

Pages 1–190

Issue edited by: Aldo H. Romero, Jorge Serrano

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. Cover Picture: Ann. Phys. 1–2/2011

      Article first published online: 3 JAN 2011 | DOI: 10.1002/andp.201190000

  2. Issue Information

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. Issue Information: Ann. Phys. 1–2/2011

      Article first published online: 3 JAN 2011 | DOI: 10.1002/andp.201152311

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. Contents: Ann. Phys. 1–2/2011 (pages 1–6)

      Article first published online: 3 JAN 2011 | DOI: 10.1002/andp.201152301

  4. Preface

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. Preface (page 7)

      Aldo Humberto Romero and Jorge Serrano

      Article first published online: 29 NOV 2010 | DOI: 10.1002/andp.201010463

  5. Review Articles

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. On the multi-orbital band structure and itinerant magnetism of iron-based superconductors (pages 8–50)

      O.K. Andersen and L. Boeri

      Article first published online: 3 JAN 2011 | DOI: 10.1002/andp.201000149

      Thumbnail image of graphical abstract

      This paper explains the multi-orbital band structures and itinerant magnetism of the iron-pnictide and chalcogenide superconductors. We first describe the generic band structure of a single, isolated FeAs layer. Use of its Abelian glide-mirror group allows us to reduce the primitive cell to one FeAs unit. For the lines and points of high symmetry in the corresponding large, square Brillouin zone, we specify how the one-electron Hamiltonian factorizes. From density-functional theory, and for the observed structure of LaOFeAs, we generate the set of eight Fe d and As p localized Wannier functions and their tight-binding (TB) Hamiltonian, h (k). For comparison, we generate the set of five Fe d Wannier orbitals. The topology of the bands, i. e. allowed and avoided crossings, specifically the origin of the d6 pseudogap, is discussed, and the role of the As p orbitals and the elongation of the FeAs4 tetrahedron emphasized. …

    2. Optical properties of nitride nanostructures (pages 51–61)

      A. Cantarero, A. Cros, N. Garro, M.I. Gómez-Gómez, A. García, M.M. de Lima, B. Daudin, A. Rizzi, C. Denker and J. Malindretos

      Article first published online: 2 NOV 2010 | DOI: 10.1002/andp.201000107

      Thumbnail image of graphical abstract

      In this paper some recent results on the optical properties of nitride nanostructures are reviewed, in particular on GaN quantum dots (QDs) and InN nanocolumns (NCs). First, a brief introduction on the particularities of vibrational modes of wurtzite is given. The GaN QDs, embedded in AlN, were grown by molecular beam epitaxy (MBE) in the Stransky-Krastanov mode on c- and a-plane 6H-SiC. The authors have studied the optical properties by means of photoluminescence (PL) and performed Raman scattering measurements to analyze the strain relaxation in the dots and the barrier, the effect of the internal electric fields, and the influence of specific growth parameters, like the influence of capping or the spacer on the relaxation of the QDs. A theoretical model, …

      Corrected by:

      Erratum: Erratum: Optical properties of nitride nanostructures

      Vol. 523, Issue 11, 957, Article first published online: 13 OCT 2011

    3. Raman scattering on nanomaterials and nanostructures (pages 62–74)

      Z.V. Popović, Z. Dohčević-Mitrović, M. Šćepanović, M. Grujić-Brojčin and S. Aškrabić

      Article first published online: 11 OCT 2010 | DOI: 10.1002/andp.201000094

      Thumbnail image of graphical abstract

      The conventional Raman scattering spectroscopy is one of the most used and powerful techniques for characterization of nano-sized materials and structures. By proper analysis of optical mode shift and broadening in nanomaterials based on phonon confinement model, it is possible to deduce about the influence of various effects like particle size and size distribution, strain, change of phonon dispersion, substitutional effects, defect states and nonstoichiometry, electron-phonon coupling. The authors have demonstrated potentials of this technique in CeO2 and TiO2 nanocrystalline systems analyzing their optical phonon properties.

    4. Electrostatic energy profiles at nanometer-scale in group III nitride semiconductors using electron holography (pages 75–86)

      F.A. Ponce

      Article first published online: 2 NOV 2010 | DOI: 10.1002/andp.201000112

      Thumbnail image of graphical abstract

      Electron holography in the transmission electron microscope is used to determine energy band profiles with sub-nanometer spatial resolution. The phase of the electron beam is sensitive to the electrostatic potential, and a direct measurement of the latter can be achieved by making the electron beam signal that traverses the specimen interfere with a reference electron beam that travels through vacuum. This technique has been quite useful in probing the fields and charges at dislocations and at interfaces in semiconductors. …

    5. The quantum Boltzmann equation in semiconductor physics (pages 87–100)

      D.W. Snoke

      Article first published online: 11 OCT 2010 | DOI: 10.1002/andp.201000102

      Thumbnail image of graphical abstract

      The quantum Boltzmann equation, or Fokker-Planck equation, has been used to successfully explain a number of experiments in semiconductor optics in the past two decades. This paper reviews some of the developments of this work, including models of excitons in bulk materials, electron–hole plasmas, and polariton gases.

  6. Original Papers

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Preface
    6. Review Articles
    7. Original Papers
    1. Sum-frequency spectroscopy on bulk and surface phonons of noncentrosymmetric crystals (pages 101–106)

      W.-T. Liu and Y.R. Shen

      Article first published online: 8 OCT 2010 | DOI: 10.1002/andp.201000093

      Thumbnail image of graphical abstract

      Infrared-visible sum-frequency spectroscopy is shown to be an effective tool to probe not only bulk phonons, but also microscopic surface phonons of noncentrosymmetric crystals. Results on α-quartz are presented as an example. The observed surface phonons of the (0001) surface agree well with the calculated surface structure.

    2. Acoustic vibrations in free-standing single-, bi-layer nanomembranes and patterned wires (pages 107–120)

      R.S. Bandhu, R. Sooryakumar and K. Bussmann

      Article first published online: 2 NOV 2010 | DOI: 10.1002/andp.201000098

      Thumbnail image of graphical abstract

      Brillouin light scattering investigations of acoustic vibrations in freestanding membranes, soft-hard bi-layers and patterned wires are described. Studies of longitudinal and transverse standing wave resonances, the wave vector dependence of surface and guided waves as well as their hybridization with flexural and dilational waves are presented. …

    3. Polarization contrast linear spectroscopies for cubic semiconductors under stress: macro- and micro-reflectance difference spectroscopies (pages 121–128)

      L.F. Lastras-Martínez, R.E. Balderas-Navarro, R. Castro-García, R. Herrera-Jasso, M. Chavira-Rodríguez and A. Lastras-Martínez

      Article first published online: 24 NOV 2010 | DOI: 10.1002/andp.201000097

      Thumbnail image of graphical abstract

      The technique to measure optical anisotropies (OA) in cubic semiconductors is termed either reflectance difference spectroscopy (RDS) or reflectance anisotropy spectroscopy (RAS). In this paper the authors report on the application of RDS/RAS to a number of cubic semiconductors. They discuss RD spectra of GaAs, Si, CdTe, GaP, InP and GaSb (001) surfaces. They show that all RD spectra can be explained in terms of a phenomenological model based on a perturbative Hamiltonian. …

    4. A tale of two vacancies (pages 129–136)

      W. Cheng, L. Liu, P.Y. Yu, Z.X. Ma and S.S. Mao

      Article first published online: 8 OCT 2010 | DOI: 10.1002/andp.201000110

      Thumbnail image of graphical abstract

      In this paper the authors apply first-principle density-functional theory to calculate some of the interesting roles played by vacancies in material properties, such as magnetic properties and complex formation. As examples recent results on vacancies in group III-V semiconductors like GaN and II-VI semiconductor like CdTe are used.

    5. Uniaxial strain in graphene and armchair graphene nanoribbons: An ab initio study (pages 137–144)

      N. Rosenkranz, M. Mohr and C. Thomsen

      Article first published online: 11 OCT 2010 | DOI: 10.1002/andp.201000092

      Thumbnail image of graphical abstract

      The authors report first-principles studies on the electronic and vibrational properties of uniaxially strained graphene and graphene nanoribbons. The band structure of extended graphene shows an interesting behavior under uniaxial strain in directions other than the zigzag or armchair direction. While strained graphene remains semi-metallic, one-dimensional graphene nanoribbons allow band-gap tuning via strain. The shift of the strain-induced band-gap in armachair nanoribbons depends on their family. At small strain …

    6. Theory of strain effects on the Raman spectrum of Si-Ge core-shell nanowires (pages 145–156)

      J. Menéndez, R. Singh and J. Drucker

      Article first published online: 24 NOV 2010 | DOI: 10.1002/andp.201000106

      Thumbnail image of graphical abstract

      An analytical model is introduced to compute the Raman spectrum of Si-Ge core shell nanowires. For the calculation of the strain, the materials are assumed to be elastically isotropic. It is argued that the largest components of the strain tensor are not significantly affected by this approximation. The phonon modes in the presence of strain are calculated using the known deformation potential tensors for Si and Ge. Predictions are made for Si-Ge and Ge-Si core-shell nanowires …

    7. Lattice dynamics of ZnAl2O4 and ZnGa2O4 under high pressure (pages 157–167)

      S. López-Moreno, P. Rodríguez-Hernández, A. Muñoz, A.H. Romero, F.J. Manjón, D. Errandonea, E. Rusu and V.V. Ursaki

      Article first published online: 2 NOV 2010 | DOI: 10.1002/andp.201000096

      Thumbnail image of graphical abstract

      In this work a first-principles density functional study of the vibrational properties of ZnAl2O4 and ZnGa2O4 as function of hydrostatic pressure is presented. Based on their previous structural characterization of these two compounds under pressure, herewith, the authors report the pressure dependence on both systems of the vibrational modes for the cubic spinel structure, for the CaFe2O4-type structure (Pnma) in ZnAl2O4 and for marokite (Pbcm) ZnGa2O4. Additionally they report a second order phase transition in ZnGa2O4

    8. Theoretical approaches to the temperature and zero-point motion effects on the electronic band structure (pages 168–178)

      X. Gonze, P. Boulanger and M. Côté

      Article first published online: 24 NOV 2010 | DOI: 10.1002/andp.201000100

      Thumbnail image of graphical abstract

      The modifications of the electronic band structure of solids due to electron-phonon interactions (temperature and zero-point motion effects) have been explored by Manuel Cardona from both the experimental and theoretical sides. In the present contribution, the authors focus on the theoretical approaches to such effects. Although the situation has improved since the seventies, the wish for a fully developed theory (and associated efficient implementations) is not yet fulfilled. …

    9. The scientific road of Manuel Cardona: a bibliometric analysis (pages 179–190)

      A.H. Romero, R.K. Kremer and W. Marx

      Article first published online: 2 NOV 2010 | DOI: 10.1002/andp.201000090

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      The authors present a detailed bibliometric analysis of the scientific contributions of Manuel Cardona, who represents an interesting example of a renowned scientist with a long and fruitful career. His publications provide an appropriate basis to apply various bibliometric techniques to measure the impact of his scientific achievements. For this purpose, the authors have taken into account his full publication record, the institutions of all his coauthors, the journals where his papers have been published, and the citations of his papers as a measure of their impact. …

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