We present the most downloaded papers from the physica status solidi family of journal in April, spanning subject areas such as magnetic recording, solid state lighting, graphene, and much more!

physica status solidi (RRL)

• R. Sbiaa*, H. Meng, S. N. Piramanayagam
  Materials with perpendicular magnetic anisotropy for magnetic random access memory [Review@RRL]
  Phys. Status Solidi RRL 2011, vol. 5, p. 413
• K. P. O’Donnell*, M. Auf der Maur, A. Di Carlo, K. Lorenz, the SORBET consortium
  It’s not easy being green: Strategies for all-nitrides, all-colour solid state lighting [Expert Opinion]
  Phys. Status Solidi RRL 2012, vol. 6, p. 49
• Takeshi Fukuda*, Kenji Takagi, Takashi Asano, Zentaro Honda, Norihiko Kamata, Keiji Ueno, Hajime Shirai, Jungmyoung Ju, Yutaka Yamagata, Yusuke Tajima
  Bulk heterojunction organic photovoltaic cell fabricated by the electrospray deposition method using mixed organic solvent [Rapid Research Letter]
  Phys. Status Solidi RRL 2011, vol. 5, p. 229
• Woong-Sun Kim, Yeon-Keon Moon, Sih Lee, Byung-Woo Kang, Tae-Seok Kwon, Kyung-Taek Kim, Jong-Wan Park*
  Copper source/drain electrode contact resistance effects in amorphous indium–gallium–zinc-oxide thin film transistors [Rapid Research Letter]
  Phys. Status Solidi RRL 2009, vol. 3, p. 239
• E. Fortunato*, R. Martins
  Where science fiction meets reality? With oxide semiconductors! [Expert Opinion]
  Phys. Status Solidi RRL 2011, vol. 5, p. 336
• B. Hoex*, M. C. M. van de Sanden, J. Schmidt, R. Brendel, W. M. M. Kessels
  Surface passivation of phosphorus-diffused n⁺-type emitters by plasma-assisted atomic-layer deposited Al₂O₃ [Rapid Research Letter]
  Phys. Status Solidi RRL 2012, vol. 6, p. 4
• Won Joon Heo, Won-June Kim, Young-Han Shin, Eok Kyun Lee*
  Density functional study of α–β phase transition of polyvinylidene difluoride [Rapid Research Letter]
  Phys. Status Solidi RRL 2012, vol. 6, p. 217
• Regina Mueller-Mach*, Gerd O. Mueller, Michael R. Krames, Oleg B. Shchekin, Peter J. Schmidt, Helmut Bechtel, Ching-Hui Chen, Oliver Steigelmann
  All-nitride monochromatic amber-emitting phosphor-converted light-emitting diodes [Rapid Research Letter]
  Phys. Status Solidi RRL 2009, vol. 3, p. 215
• Sergiu P. Albu, Andrei Ghicov, Jan M. Macak, Patrik Schmuki*
  250 µm long anodic TiO₂ nanotubes with hexagonal self-ordering [Rapid Research Letter]
  Phys. Status Solidi RRL, 10.1002/pssr.200600069

physica status solidi (a)

• Philip A. Shields, Martin D. B. Charlton, Christopher J. Lewins, Xiang Gao, Duncan W. E. Allsopp*, Wang N. Wang, Bedwyr Humphreys
  Effect of coalescence layer thickness on the properties of thin-chip InGaN/GaN light emitting diodes with embedded photonic quasi-crystal structures [Editor’s Choice]
  Phys. Status Solidi A 2012, vol. 209, p. 451
• Jakub S. Prauzner-Bechcicki*, Szymon Godlewski, Marek Szymonski
  Atomic- and molecular-scale devices and systems for single-molecule electronics [Feature Article]
  Phys. Status Solidi A 2012, vol. 209, p. 603
• Joachim Piprek*
  Efficiency droop in nitride-based light-emitting diodes [Feature Article]
  Phys. Status Solidi A 2010, vol. 207, p. 2217
• F. Jelezko, J. Wrachtrup*
  Single defect centres in diamond: A review [Review Article]
  Phys. Status Solidi A 2006, vol. 203, p. 3207
• Lili Cui, Xiaofeng Lu*, Danming Chao, Hongtao Liu, Yongxin Li, Ce Wang*
  Graphene-based composite materials with high dielectric permittivity via an in situ reduction method [Original Paper]
  Phys. Status Solidi A 2011, vol. 208, p. 459
• Yu-fei Meng*, Chih-shiue Yan, Szczesny Krasnicki, Qi Liang, Joseph Lai, Haiyun Shu, Thomas Yu, Andrew Steele, Ho-kwang Mao, Russell J. Hemley*
  High optical quality multicarat single crystal diamond produced by chemical vapor deposition [Original Paper]
  Phys. Status Solidi A 2012, vol. 209, p. 101
• E. William Cowell*, Christopher C. Knutson, Nicholas A. Kuhta, William Stickle, Douglas A. Keszler, John F. Wager
  Engineering anisotropic dielectric response through amorphous laminate structures [Original Paper]
  Phys. Status Solidi A 2012, vol. 209, p. 777
• Roland Haitz, Jeffrey Y. Tsao*
  Solid-state lighting: ‘The case’ 10 years after and future prospects [Expert Opinion]
  Phys. Status Solidi A 2011, vol. 208, p. 17
• H. Pinto*, R. Jones, J. P. Goss, P. R. Briddon
  Mechanisms of doping graphene [Original Paper]
  Phys. Status Solidi A 2010, vol. 207, p. 2131
• D. A. Zakheim*, A. S. Pavluchenko, D. A. Bauman, K. A. Bulashevich, O. V. Khokhlev, S. Yu. Karpov
  Efficiency droop suppression in InGaN-based blue LEDs: Experiment and numerical modelling [Original Paper]
  Phys. Status Solidi A 2012, vol. 209, p. 456

 physica status solidi (b)

• Markus Morgenstern*
  Scanning tunneling microscopy and spectroscopy of graphene on insulating substrates [Feature Article]
  Phys. Status Solidi B 2011, vol. 248, p. 2423
• Ado Jorio*, Erlon H. Martins Ferreira, Marcus V. O. Moutinho, Fernando Stavale, Carlos A. Achete, Rodrigo B. Capaz
  Measuring disorder in graphene with the G and D bands [Original Paper]
  Phys. Status Solidi B 2010, vol. 247, p. 2980
• C. Klingshirn
  ZnO: From basics towards applications [Review Article]
  Phys. Status Solidi B 2007, vol. 244, p. 3027
• Andrey N. Enyashin, Alexander L. Ivanovskii*
  Graphene allotropes [Editor’s Choice]
  Phys. Status Solidi B 2011, vol. 248, p. 1879
• M. Benyoucef*, J.-B. Shim, J. Wiersig, O. G. Schmidt
  Quality-factor enhancement of optical modes mediated by strong coupling

  in micron-size semiconductor disks [Original Paper]
  Phys. Status Solidi B 2012, vol. 249, p. 925

• Daniel Dregely*, Klas Lindfors, Jens Dorfmüller, Mario Hentschel, Merle Becker, Jörg Wrachtrup, Markus Lippitz, Ralf Vogelgesang, Harald Giessen
  Plasmonic antennas, positioning, and coupling of individual quantum systems [Feature Article]
  Phys. Status Solidi B 2012, vol. 249, p. 666
• A. Rastelli*, F. Ding, J. D. Plumhof, S. Kumar, R. Trotta, Ch. Deneke, A. Malachias, P. Atkinson, E. Zallo, T. Zander, A. Herklotz, R. Singh, V. Krápek, J. R. Schröter, S. Kiravittaya, M. Benyoucef, R. Hafenbrak, K. D. Jöns, D. J. Thurmer, D. Grimm, G. Bester, K. Dörr, P. Michler, O. G. Schmidt
  Controlling quantum dot emission by integration of semiconductor nanomembranes onto piezoelectric actuators [Feature Article]
  Phys. Status Solidi B 2012, vol. 249, p. 687
• Markus Pfeiffer, Klas Lindfors*, Paola Atkinson, Armando Rastelli, Oliver G. Schmidt, Harald Giessen, Markus Lippitz
  Positioning plasmonic nanostructures on single quantum emitters [Feature Article]
  Phys. Status Solidi B 2012, vol. 249, p. 678
• Gahee Lee, I. G. Kim, J. I. Lee, Y.-R. Jang*
  Magnetic properties of a ferromagnetic Heusler alloy Co₂MnSn [Original Paper]
  Phys. Status Solidi B 2004, vol. 241, p. 1435
• Janik Wolters*, Günter Kewes, Andreas W. Schell, Nils Nüsse, Max Schoengen, Bernd Löchel, Tobias Hanke, Rudolf Bratschitsch, Alfred Leitenstorfer, Thomas Aichele, Oliver Benson
  Coupling of single nitrogen-vacancy defect centers in diamond nanocrystals to optical antennas and photonic crystal cavities [Editor’s Choice]
  Phys. Status Solidi B 2012, vol. 249, p. 918

 physica status solidi (c)

• G. Xiong*, U. Pal, J. G. Serrano, K. B. Ucer, R. T. Williams
  Photoluminesence and FTIR study of ZnO nanoparticles: the impurity and defect perspective [Original Paper]
  physica status solidi c 2006, vol. 3, p. 3577
• Roghaiyeh Ravash*, Peter Veit, Mathias Müller, Gordon Schmidt, Anja Dempewolf, Thomas Hempel, Jürgen Bläsing, Frank Bertram, Armin Dadgar, Jürgen Christen, Alois Krost
  Growth and stacking fault reduction in semi-polar GaN films on planar Si(112) and Si(113) [ICNS-9 – Contributed Article]
  physica status solidi c 2012, vol. 9, p. 507
• Christine Chory*, Folker Zutz, Florian Witt, Holger Borchert, Jürgen Parisi
  Synthesis and characterization of Cu₂ZnSnS₄ [Contributed Article]
  physica status solidi c 2010, vol. 7, p. 1486
• Toshio Kamiya*, Kenji Nomura, Masahiro Hirano, Hideo Hosono
  Electronic structure of oxygen deficient amorphous oxide semiconductor a-InGaZnO_4–x : Optical analyses and first-principle calculations [Contributed Article]
  physica status solidi c 2008, vol. 5, p. 3098
• P. A. Fernandes*, P. M. P. Salomé, A. F. da Cunha
  Cu_xSnS_x+1 (x = 2, 3) thin films grown by sulfurization of metallic precursors deposited by dc magnetron sputtering [ICANS 23 – Contributed Article]
  physica status solidi c 2010, vol. 7, p. 901
• Noriko Moritake*, Yuki Fukui, Masatoshi Oonuki, Kunihiko Tanaka, Hisao Uchiki
  Preparation of Cu₂ZnSnS₄ thin film solar cells under non-vacuum condition [Contributed Article]
  physica status solidi c 2009, vol. 6, p. 1233
• Contents: Phys. Status Solidi C 3–4/2012 [Contents]
  physica status solidi c 2012, vol. 9, p. 411
• Torsten Langer*, Andreas Kruse, Fedor Alexej Ketzer, Alexander Schwiegel, Lars Hoffmann, Holger Jönen, Heiko Bremers, Uwe Rossow, Andreas Hangleiter
  Origin of the “green gap”: Increasing nonradiative recombination in indium-rich GaInN/GaN quantum well structures [Contributed Article]
  physica status solidi c 2011, vol. 8, p. 2170
• M. Khardani, M. Bouaïcha*, B. Bessaïs
  Bruggeman effective medium approach for modelling optical properties of porous silicon: comparison with experiment [Original Paper]
  physica status solidi c 2007, vol. 4, p. 1986
• Yue-Ming Hsin*, Tsung-Yu Ke, Geng-Yen Lee, Jen-Inn Chyi, Hsien-Chin Chiu
  A 600 V AlGaN/GaN Schottky barrier diode on silicon substrate with fast reverse recovery time [ICNS-9 – Contributed Article]
  physica status solidi c 2012, vol. 9, p. 949