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Regensburg 2007 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 13: Poster 1

Monday, March 26, 2007, 15:00–17:30, Poster A

15:00 HL 13.1 Anomalously localized electronic states in three-dimensional disordered systems — •Philipp Cain and Michael Schreiber
15:00 HL 13.2 The application of multigrid methods to the Helmholtz/Anderson problem — •Rudolf Roemer and Sarah Mallion
15:00 HL 13.3 Interface influence on optical properties of Si-SiO2 structures — •Kaori Seino, Jan-Martin Wagner, and Friedhelm Bechstedt
15:00 HL 13.4 Einfluss akustischer Oberflächenwellen auf die Leitfähigkeit von Graphen — •Jörg Kinzel, Jens Ebbecke, Markus Regler und Achim Wixforth
15:00 HL 13.5 Investigating the properties of ternary chalcogenide alloys with Density Functional Theory employing PAW potentials — •Pascal Rausch, Stephan Kremers, and Matthias Wuttig
15:00 HL 13.6 Ionenstrahlgestützte Molekularstrahlepitaxie von Gadoliniumnitrid-Schichten — •Julius Mennig, Jürgen Gerlach, Thomas Höche und Bernd Rauschenbach
15:00 HL 13.7 Effect of hydrogen an silicon co-doping on the magnetic properties of GaGdN grown by MBE — •Martin Roever, Dong-Du Mai, Amilcar Bedoya Pinto, Henning Schuhmann, Tore Niermann, Joerg Malindretos, Michael Seibt, and Angela Rizzi
15:00 HL 13.8 Preparation, characterization and measurements of graphene layers on SiO2 substrates — •Ulrich Stöberl, Tobias Feil, Michael Huber, and Dieter Weiss
15:00 HL 13.9 All-electron implementation of the GW approximation within the FLAPW method — •Christoph Friedrich, Arno Schindlmayr, and Stefan Blügel
15:00 HL 13.10 Adiabatic-Connection Fluctuation-Dissipation Theorem for rare-gas crystals — •Judith Harl and Georg Kresse
15:00 HL 13.11 Efficient implementation of the exact nonlocal exchange potential within the FLAPW method — •Markus Betzinger, Christoph Friedrich, Gustav Bihlmayer, and Stefan Blügel
15:00 HL 13.12 FIR spectroscopy of nanostructured meandering conducting stripes fabricated by AFM nanolithography — •Steffen Groth, Kevin Rachor, Carsten Graf von Westarp, Tobias Krohn, Nikolai Mecking, and Detlef Heitmann
15:00 HL 13.13 Optical Modes in Semiconductor Microtube Resonators — •Christoph Matthias Schultz, Hagen Rehberg, Christian Strelow, Holger Welsch, Christian Heyn, Detlef Heitmann, and Tobias Kipp
15:00 HL 13.14 FIR Spectroscopy on Carbon-doped Two-Dimensional Hole Systems — •Kevin Rachor, Carsten Graf von Westarp, Detlef Heitmann, Dirk Reuter, and Andreas Wieck
15:00 HL 13.15 Frequenzaufgelöste Spektroskopie an GaAs/(AlGa)As-Heterostrukturen — •Jonas Haunschild, Sangam Chatterjee, Peter Thomas, Wolfgang W. Rühle, Andreas D. Wieck, Galina Khitrova und Hyatt M. Gibbs
15:00 HL 13.16 The band structure of indium oxide: indirect vs. direct band gapPaul Erhart, •Péter Ágoston, Andreas Klein, and Karsten Albe
15:00 HL 13.17 Light absorption of silicon nanoparticles — •Andreas Gondorf, Cedrik Meier, Stephan Lüttjohann, Matthias Offer, Axel Lorke, and Hartmut Wiggers
15:00 HL 13.18 Anisotropic optical properties and excitonic structure of ZnO between 2.5 and 32eV — •Christoph Cobet, Munise Rakel, Christoph Werner, Wolfgang Richter, and Norbert Esser
15:00 HL 13.19 Ta2O5/SiO2 dielectric DBR mirrors for ZnO based micro-cavities and VCSEL structures — •Alexander Franke, Björn Diez, Thomas Hempel, Jürgen Christen, Annett Diez, Sören Heinze, and Alois Krost
15:00 HL 13.20 Magnetotransport measurements on GaMnAs and on GaMnAs/MnAs hybrid structures — •Matthias Elm, Jörg Teubert, Wolfram Heimbrodt, Peter Jens Klar, Matthias Reinwald, and Werner Wegscheider
15:00 HL 13.21 Effect of localized B and N states on the magneto-transport of (B,Ga,In)As and (Ga,In)(N,As) — •Jörg Teubert, Peter Klar, Wolfram Heimbrodt, Volker Gottschalch, Andrew Lindsay, and Eoin OReilly
15:00 HL 13.22 A block-tridiagonalization algorithm for quantum transport calculations — •Michael Wimmer and Klaus Richter
15:00 HL 13.23 Design and realization of micromechanical cantilevers for magnetization studies of two-dimensional electron systems in nanostructures — •T. Windisch, O. Roesler, J. I. Springborn, N. Ruhe, Ch. Heyn, D. Heitmann, M. A. Wilde, and D. Grundler
15:00 HL 13.24 Magnetization measurements of low-dimensional electron systems by static and dynamic cantilever magnetometry — •A. Krohn, J. I. Springborn, N. Ruhe, M. A. Wilde, D. Heitmann, and D. Grundler
15:00 HL 13.25 Quantum dot as a thermal rectifierRalf Scheibner, •Christian Praetorius, Ines Hense, Markus König, Dirk Reuter, Andreas Wieck, Hartmut Buhmann, and Laurens Molenkamp
15:00 HL 13.26 Spectrally resolved far-infrared photoresponse in quasi-Corbino quantum Hall systems — •Christian Notthoff and Axel Lorke
15:00 HL 13.27 Wigner-Crystalline Order of Two-Dimensional Electron Systems in High Magnetic Fields — •Guenther Meissner and Uwe Schmitt
15:00 HL 13.28 Doping efficiency and donor binding energy in high mobility AlAs quantum wellsClaudius Knaak, •Shivaji Dasgupta, Max Bichler, Anna Fontcuberta i Morral, Gerhard Abstreiter, and Matthew Grayson
15:00 HL 13.29 Formation of Bloch-oscillations and plasma frequency in femtosecond excited semiconductors — •Klaus Morawetz, Pavel Lipavsky, and Michael Schreiber
15:00 HL 13.30 Nonequilibrium Green's functions approach to artificial atoms: Nonequilibrium behavior — •Karsten Balzer, Michael Bonitz, Nils-Erik Dahlen, and Robert van Leeuwen
15:00 HL 13.31 Laser-induced nonthermal melting in InSb: What is the mechanism? — •Waldemar Töws, Christian Sippel, Christian Gilfert, Jessica Walkenhorst, Eeuwe Sieds Zijlstra, and Martin Garcia
15:00 HL 13.32 Quantum potential for confined charged particles in nonequilibrium — •Andrea Fromm, Michael Bonitz, and James Dufty
15:00 HL 13.33 Terahertz Emission by Drift and Diffusion — •Guillermo Acuna, Federico Buersgens, Christian Lang, and Roland Kersting
15:00 HL 13.34 Semiconductor quantum rings as a source for ultrafast magnetic and chiral light pulses — •Moskalenko A.S., Matos-Abiague A., and Berakdar J.
15:00 HL 13.35 Effects of initial spin polarization and external magnetic fields on the electron spin dephasing in a two dimensional electron system — •Dominik Stich, Robert Schulz, Andreas Maurer, Tobias Korn, Dieter Schuh, Werner Wegscheider, Jun Zhou, Ming Wei Wu, and Christian Schüller
15:00 HL 13.36 Photoluminescence and ultrafast spectroscopy on GaAs quantum wells close to a GaMnAs layer — •Robert Schulz, Tobias Korn, Andreas Maurer, Dominik Stich, Ursula Wurstbauer, Dieter Schuh, Werner Wegscheider, and Christian Schüller
15:00 HL 13.37 Temperature dependent MOVPE growth of InN quantum dots investigated by in-situ spectroscopic ellipsometry — •Simon Ploch, Christian Meissner, Massimo Drago, Markus Pristovsek, and Michael Kneissl
15:00 HL 13.38 Reverse Deep Level Transient Spectroscopy on InAs Quantum Dots — •Christiane Konetzni, Andreas Schramm, Christian Heyn, and Wolfgang Hansen
15:00 HL 13.39 Investigation of Heterojunction Sharpness of III-V-Nanowhiskers by Analytical (S)TEM Measurements — •Daniela Sudfeld, Jochen Kästner, Günter Dumpich, Ingo Regolin, Werner Prost, and Franz Josef Tegude
15:00 HL 13.40 Magnetization of tunneling coupled double-layer quantum dots — •J. Topp, O. Roesler, D. Reuter, A.D. Wieck, D. Grundler, and D. Heitmann
15:00 HL 13.41 From a gate voltage scale to an energy scale in capacitance voltage spectroscopy of InAs quantum dots — •Arne Ludwig, Dirk Reuter, and Andreas D. Wieck
15:00 HL 13.42 Entanglement decay in semiconductor quantum dots — •Katarzyna Roszak, Pawel Machnikowski, and Tilmann Kuhn
15:00 HL 13.43 Temperature dependent photocurrent spectroscopy of a single InGaAs quantum dot — •Marc C. Hübner, Stefan Stufler, Patrick Ester, Steffen Michaelis de Vasconcellos, Artur Zrenner, and Max Bichler
15:00 HL 13.44 Preparation of silicon nanoparticle films for single particle spectroscopy — •Matthias Offer, Cedrik Meier, Stephan Lüttjohann, Andreas Gondorf, Axel Lorke, and Hartmut Wiggers
15:00 HL 13.45 Optical size effects in ultra fine ZnO nanowiresDaniel Stichtenoth, Tore Niermann, Pai-Chun Chang, Chung-Jen Chien, Jia Grace Lu, and •Carsten Ronning
15:00 HL 13.46 Photoluminescence Spectroscopy of CdSe/CdS(/ZnS) Quantum Dots — •Torben Menke, Gerwin Chilla, Marija Nikolic, Andreas Frömsdorf, Tobias Kipp, Detlef Heitmann, Horst Weller, and Sephan Förster
15:00 HL 13.47 Resonant micro-Raman spectroscopy on few InAs quantum dots — •Tim Köppen, Thomas Brocke, Tobias Kipp, Andreas Schramm, Christian Heyn, and Detlef Heitmann
15:00 HL 13.48 Optical properties of Mn-doped ZnS nanowiresDaniel Stichtenoth, Sebastian Geburt, Tobias Niebling, Peter J Klar, and •Carsten Ronning
15:00 HL 13.49 Raman studies of surface phonons in CdSe and CdS quantum dots embedded in dielectric media — •Yuriy Azhniuk, Volodymyr Dzhagan, Stepan Kuchmii, Alexandra Raevskaya, Alexandr Stroyuk, Mykhailo Valakh, and Dietrich Zahn
15:00 HL 13.50 Tunable quantum dots in InAs nanowires — •Marc Scheffler, Stevan Nadj-Perge, Leo P. Kouwenhoven, Magnus T. Borgström, and Erik P. A. M. Bakkers
15:00 HL 13.51 Noise at a Fermi edge singularity — •N. Maire, F. Hohls, T. Lüdtke, K. Pierz, and R. J. Haug
15:00 HL 13.52 Einfluss der Elektronen-Injektion auf den trägheitsballistischen Transport in nanoskaligen Si/SiGe-Wellenleiterstrukturen — •Gang Qiao, Ulrich Wieser, Ulrich Kunze und Thomas Hackbarth
15:00 HL 13.53 Mode spectroscopy of tunnel-coupled asymmetric quantum point contacts — •S. S. Buchholz, S. F. Fischer, U. Kunze, D. Schuh und Gerhard Abstreiter
15:00 HL 13.54 Quantum Thermal Conductance of Electrons in a One-Dimensional Wire — •O. Chiatti, J. T. Nicholls, Y. Y. Proskuryakov, N. Lumpkin, I. Farrer, and D. A. Ritchie
15:00 HL 13.55 Einzelelektronentransport durch Kohlenstoffnanoröhren mittels akustischer Oberflächenwellen — •Markus Regler, Jens Ebbecke und Achim Wixforth
15:00 HL 13.56 SAW-induced current in ratchets on GaAs/AlGaAs heterostructures as function of dimensionality and temperature. — •Marcin Malecha, Jens Ebbecke, and Achim Wixforth
15:00 HL 13.57 Excitonic Aharonov-Bohm effect in the presence of an electric field — •Andrea Fischer and Rudolf Römer
15:00 HL 13.58 Spectroscopy of quantum dots with ballistic electrons — •Ines Hense, Christian Praetorius, Ralf Scheibner, Markus König, Carsten Danz, Dirk Reuter, Andreas Wieck, Hartmut Buhmann, and Laurens Molenkamp
15:00 HL 13.59 Preparation and Characterization of spin filters on InAs — •Jan Jacob, Sebastian von Oehsen, Guido Meier, Toru Matsuyama, and Ulrich Merkt
15:00 HL 13.60 Surface acoustic wave mediated lateral electron spin transport with ferromagnetic tunnel contact spin injection — •Jens Ebbecke and Achim Wixforth
15:00 HL 13.61 Geometric spin transformation in quantum dot loops — •Burkhard Scharfenberger, Pablo San-Jose, and Gerd Schön
15:00 HL 13.62 Spin relaxation in narrow wires of a two-dimensional electron gasPeter Schwab, Michael Dzierzawa, •Cosimo Gorini, and Roberto Raimondi
15:00 HL 13.63 GaMnAs on patterned GaAs(001) substrates: Growth and magnetotransport — •Joachim Daeubler, Michael Glunk, Thomas Hummel, Wladimir Schoch, Wolfgang Limmer, and Rolf Sauer
15:00 HL 13.64 Tunneling anisotropic magnetoresistance effect in a p+-(Ga,Mn)As/n+-GaAs Esaki diode — •Mariusz Ciorga, Andreas Einwanger, Janusz Sadowski, Werner Wegscheider, and Dieter Weiss
15:00 HL 13.65 Non-local spin-valve signal in magnetotransport measurements on p+-(Ga,Mn)As/n+-GaAs Esaki diode devices. — •Andreas Einwanger, Mariusz Ciorga, Janusz Sadowski, Dieter Schuh, Werner Wegscheider, and Dieter Weiss
15:00 HL 13.66 Transiente Störstellenspektroskopie an Cu(In,Ga)Se2-Dünnschichtsolarzellen — •Martin Knipper und Jürgen Parisi
15:00 HL 13.67 Polymer-Fullerene Bulk-Heterojunction Solar Cells With Additional ZnO:Al Layer — •Daniel Rauh, Volker Lorrmann, Carsten Deibel, Vladimir Dyakonov, and Ingo Riedel
15:00 HL 13.68 Identification and Quantification of Local Absorber Properties of Cu(In,Ga)Se2 from Sub-Micron Resolved PL and Optical Transmission — •Levent Gütay and Gottfried Bauer
15:00 HL 13.69 Optical and electrical properties of sputtered copper oxide thin films — •Swen Graubner, Stefan Merita, and Bruno Meyer
15:00 HL 13.70 Turn-on dynamics and modulation response in semiconductor quantum dot lasers — •Ermin Malić, Moritz Bormann, Philipp Hövel, Matthias Kuntz, Dieter Bimberg, Andreas Knorr, and Eckehard Schöll
15:00 HL 13.71 DC-transport characteristics of Silicon-on-Insulator FET with 55nm thick silicon films at low doping levels — •Pagra Truman, Petra Uhlmann, and Manfred Stamm
15:00 HL 13.72 Laterale, zweidimensionale npn-Übergänge: Eine neue Methode für Positionsdetektoren — •C. Werner, D. Reuter und A.D. Wieck
15:00 HL 13.73 Influence of thermal annealing on the memory effect in MIS structures containing crystalline Si nanoparticlesNicola Nedev, Diana Nesheva, Emil Manolov, Rudolf Brüggemann, •Sebastian Meier, Kiril Kirilov, and Zelma Levi
15:00 HL 13.74 The design and fabrication of an electron pump with in-plane gate transistors by focused ion beam implantation — •M. Draghici, D. Salloch, A. Melnikov, D. Reuter, and A. D. Wieck
15:00 HL 13.75 Functionalized macroporous silicon structures for ir-radiation and chemical sensing applications — •Benjamin Gesemann and Ralf Wehrspohn
15:00 HL 13.76 In situ spectroscopy and characterisation of organic solar cells — •F. Holch, J. Pernpeintner, A. Schöll, and E. Umbach
15:00 HL 13.77 Open circuit voltage of organic solar cells - experiment and simulation — •Matthias Roosz, Carsten Deibel, Ingo Riedel, Vladimir Dyakonov, David Cheyns, Jan Genoe, and Paul Heremans
15:00 HL 13.78 Investigation of electronic traps in organic transport layers via thermally stimulated current measurements — •Julia Schafferhans, Carsten Deibel, and Vladimir Dyakonov
15:00 HL 13.79 Photoinduced polarons in conjugated polymer-fullerene composites studied with light-induced electron-spin resonance — •Andreas Sperlich, Moritz Liedtke, Johannes Sieger, Carsten Deibel, Ingo Riedel, Vladimir Dyakonov, and Nazario Martin
15:00 HL 13.80 Injection studies on the guest-host system: terrylene in para-terphenyl — •Bernhard Grotz, Fedor Jelezko, Jörg Wrachtrup, and Jens Pflaum
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