physica status solidi (b)

Cover image for Vol. 250 Issue 10

October 2013

Volume 250, Issue 10

Pages 1953–2238

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Stability of viscoelastic continuum with negative-stiffness inclusions in the low-frequency range

      Yun-Che Wang and Chih-Chin Ko

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370565

      Thumbnail image of graphical abstract

      High damping and high stiffness (HDHS) viscoelastic materials, which exhibit desired energy-dissipating capability and structural integrity, may be achieved by using negative-stiffness inclusions, such as ferroelastic particles, in composite materials. However, stability has long been questioned for such composites to be realistic. Wang and Ko (pp. 2070–2079) examine a two-dimensional, two-phase, negative-stiffness viscoelastic composite under partial displacement loading by time–domain analysis with the finite element method. It was found that force responses may be stable or unstable, depending on the amount of negative stiffness. A small amount of negative stiffness in the viscoelastic composites may not deteriorate their stability, but is insufficient to trigger HDHS. Through examining the existing stability criteria of three-dimensional composites, the softening anomaly in the overall viscoelastic stiffness may be in the stability range, indicating stable damping enhancement. However, simultaneously enhancing damping and stiffness violates ellipticity requirements, hence the system is unstable/metastable. The cover image shows stress distributions around the inclusion of the two-dimensional composite in the background and stiffness/damping anomalies, as well as divergent force responses, deviating from expected sinusoidal responses.

  2. Inside Back Cover

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      The properties of copper foams with negative Poisson's ratio via resonant ultrasound spectroscopy

      Dong Li, Liang Dong and Roderic S. Lakes

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370566

      Thumbnail image of graphical abstract

      The Poisson's ratios of re-entrant Cu foams with different initial relative densities were studied by resonant ultrasound spectroscopy in the work by Li, Dong, and Lakes (pp. 1983–1987). The transformation into the re-entrant foam was accomplished by applying a sequence of permanent triaxial compression deformations. The Poisson's ratio first decreases and then increases with increasing compression strain. A minimum in Poisson's ratio of approximately -0.7 for all initial densities was achieved with an appropriate permanent compression strain, Foams with higher values of initial density attained minima in Poisson's ratio at lower permanent volumetric compression. The shear modulus increased with increasing volumetric compression ratio, and showed a small hump near the point corresponding to Poisson's ratio minimum.

  3. Back Cover

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Electronic structure of defects and doping in ZnO: Oxygen vacancy and nitrogen doping

      Adisak Boonchun and Walter R. L. Lambrecht

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370567

      Thumbnail image of graphical abstract

      In the Editor's Choice article of this issue (pp. 2091–2101), Adisak Boonchun and Walter R. L. Lambrecht give an overview of the current understanding of two important defects in ZnO: the oxygen vacancy and nitrogen impurities. While nitrogen substituting on the oxygen site is known to give rise to a deep level unsuitable for p-type doping, the authors propose that a diatomic nitrogen molecule substituting on the Zn site can act as a shallow acceptor. First-principles calculations are used to substantiate this claim. Furthermore the authors present evidence that this defect has in fact already been observed by electron paramagnetic resonance and in photoluminescence but has until now not been fully identifi ed. The incorporation of this defect on different surfaces and the potential impact for solving the notorious p-type doping problem in ZnO are discussed.

  4. Issue Information

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Issue Information

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370568

  5. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Contents (pages 1953–1957)

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370569

  6. Recent and forthcoming publications in pss

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
  7. Preface

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
  8. Feature Article

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. A review of the manufacture, mechanical properties and potential applications of auxetic foams (pages 1963–1982)

      Richard Critchley, Ilaria Corni, Julian A. Wharton, Frank C. Walsh, Robert J. K. Wood and Keith R. Stokes

      Article first published online: 19 APR 2013 | DOI: 10.1002/pssb.201248550

      Thumbnail image of graphical abstract

      In this Feature Article, Critchley et al. introduce the expanding field of auxetic materials and critically review the literature with a primary focus on auxetic foams. Particular attention is given to the fabrication methodologies, the influence played by the fabrication parameters, the microstructural models (both two- and three-dimensional), the mechanical properties and the potential applications of these materials.

  9. Original Papers

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. Tests of polyurethane foams with negative Poisson's ratio (pages 1988–1995)

      J. Lisiecki, T. Błażejewicz, S. Kłysz, G. Gmurczyk, P. Reymer and G. Mikułowski

      Article first published online: 11 SEP 2013 | DOI: 10.1002/pssb.201384232

    2. Study of an auxetic structure made of tubes and corrugated sheets (pages 1996–2001)

      Zhengkai Zhang, Hong Hu, Shirui Liu and Binggang Xu

      Article first published online: 19 FEB 2013 | DOI: 10.1002/pssb.201248349

    3. A realistic generic model for anti-tetrachiral systems (pages 2012–2019)

      Ruben Gatt, Daphne Attard, Pierre-Sandre Farrugia, Keith M. Azzopardi, Luke Mizzi, Jean-Pierre Brincat and Joseph N. Grima

      Article first published online: 10 SEP 2013 | DOI: 10.1002/pssb.201384246

    4. Elastic properties of fcc crystals of polydisperse soft spheres (pages 2020–2029)

      Konstantin V. Tretiakov and Krzysztof W. Wojciechowski

      Article first published online: 6 SEP 2013 | DOI: 10.1002/pssb.201384236

    5. Classification of cubic auxetics (pages 2038–2043)

      Robert V. Goldstein, Valentin A. Gorodtsov and Dmitry S. Lisovenko

      Article first published online: 4 SEP 2013 | DOI: 10.1002/pssb.201384233

  10. Editor's Choice

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Electronic structure of defects and doping in ZnO: Oxygen vacancy and nitrogen doping (pages 2091–2101)

      Adisak Boonchun and Walter R. L. Lambrecht

      Article first published online: 14 AUG 2013 | DOI: 10.1002/pssb.201300010

      Thumbnail image of graphical abstract

      While atomic nitrogen on the oxygen site in ZnO has too deep a level for p-type doping, a nitrogen molecule sitting on the Zn site is shown by means of first-principles calculations to have a shallow delocalized defect state suitable for p-type doping. The hyperfine structure and g-factor of the proposed N2 on Zn model are consistent with a previously observed Electron Paramagnetic Resonance center in ZnO.

  11. Original Papers

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. Doping and applications

      Stable p-type ZnO films obtained by lithium–nitrogen codoping method (pages 2102–2105)

      Shen He, Shan Chong-Xin, Liu Ji-Shan, Li Bing-Hui, Zhang Zhen-Zhong and Shen De-Zhen

      Article first published online: 31 JUL 2013 | DOI: 10.1002/pssb.201300015

    2. First principles description of the electronic properties of doped ZnO (pages 2106–2109)

      Alessandra Catellani, Alice Ruini, Giancarlo Cicero and Arrigo Calzolari

      Article first published online: 5 AUG 2013 | DOI: 10.1002/pssb.201200967

    3. Interplay of dopants and native point defects in ZnO (pages 2110–2113)

      L. J. Brillson, Z. Zhang, D. R. Doutt, D. C. Look, B. G. Svensson, A. Yu. Kuznetsov and F. Tuomisto

      Article first published online: 30 JUL 2013 | DOI: 10.1002/pssb.201200943

    4. Role of native point defects and Ga diffusion on electrical properties of degenerate Ga-doped ZnO (pages 2114–2117)

      Daniel R. Doutt, S. Balaz, L. Isabella, D. C. Look, K. D. Leedy and L. J. Brillson

      Article first published online: 27 AUG 2013 | DOI: 10.1002/pssb.201200945

    5. Growth and heterostructures

      Influence of crystal polarity on Mg incorporation in ZnO (pages 2122–2125)

      Yutaka Adachi, Naoki Ohashi, Isao Sakaguchi and Hajime Haneda

      Article first published online: 31 JUL 2013 | DOI: 10.1002/pssb.201200985

    6. Nanostructures

    7. Synthesis and characterization of core–shell ZnO/ZnSe nanowires grown by MOCVD (pages 2132–2136)

      Gaëlle Amiri, Ahmed Souissi, Nadia Hanèche, Christèle Vilar, Alain Lusson, Vincent Sallet and Pierre Galtier

      Article first published online: 17 SEP 2013 | DOI: 10.1002/pssb.201300011

    8. Magnetism

      High-frequency EPR, ESE, and ENDOR spectroscopy of Co- and Mn-doped ZnO quantum dots (pages 2137–2140)

      Pavel G. Baranov, Sergei B. Orlinskii, Celso de Mello Donegá and Jan Schmidt

      Article first published online: 23 AUG 2013 | DOI: 10.1002/pssb.201200948

    9. Regular contributions

    10. Competing A-site and B-site doping effects on magneto-transport of RE0.55 Sr0.45 Mn1−x Rux O3 manganites in the vicinity of the SGI and FMM border (pages 2158–2162)

      H. S. Alagoz, I. Živković, S. T. Mahmud, M. M. Saber, G. Perrin, J. Shandro, M. Khan, Y. Zhang, M. Egilmez, J. Jung and K. H. Chow

      Article first published online: 25 JUL 2013 | DOI: 10.1002/pssb.201350013

    11. First-principles study of the structural, electronic, and thermodynamic properties of Sc1 — x Alx As alloys (pages 2163–2173)

      William López-Pérez, Nicolás Simon-Olivera, Rafael González-Hernández and Jairo Arbey Rodríguez

      Article first published online: 25 JUL 2013 | DOI: 10.1002/pssb.201248590

    12. Excitonic wavefunction engineering based on type II quantum dots (pages 2174–2179)

      Luis C. O. Dacal, F. Iikawa and M. J. S. P. Brasil

      Article first published online: 5 AUG 2013 | DOI: 10.1002/pssb.201349063

    13. Spectrally selective diffractive optical elements based on 2D-exciton resonance in InGaAs/GaAs single quantum wells (pages 2180–2184)

      Yu. V. Kapitonov, M. A. Kozhaev, Yu. K. Dolgikh, S. A. Eliseev, Yu. P. Efimov, P. G. Ulyanov, V. V. Petrov and V. V. Ovsyankin

      Article first published online: 5 AUG 2013 | DOI: 10.1002/pssb.201349112

    14. Quadratic-in-magnetization permittivity and conductivity tensor in cubic crystals (pages 2194–2205)

      Jana Hamrlová, Jaroslav Hamrle, Kamil Postava and Jaromír Pištora

      Article first published online: 14 AUG 2013 | DOI: 10.1002/pssb.201349031

  12. Information for authors

    1. Top of page
    2. Cover Picture
    3. Inside Back Cover
    4. Back Cover
    5. Issue Information
    6. Contents
    7. Recent and forthcoming publications in pss
    8. Preface
    9. Feature Article
    10. Original Papers
    11. Editor's Choice
    12. Original Papers
    13. Information for authors
    1. You have free access to this content
      Information for authors (pages 2237–2238)

      Article first published online: 9 OCT 2013 | DOI: 10.1002/pssb.201370572

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