TY - JOUR A1 - Avilov, Anatoly S. A1 - Kulygin, Alexander K. A1 - Pietsch, Ullrich A1 - Spence, John C. H. A1 - Tsirelson, Vladimir G. A1 - Zuo, Ming J. T1 - Scanning system for high-energy electron diffractometry Y1 - 1999 UR - http://www3.interscience.wiley.com/journal/118518709/home?CRETRY=1&SRETRY=0 U6 - https://doi.org/10.1107/S0021889899006755 SN - 0021-8898 ER - TY - THES A1 - Kirstein, Stefan T1 - Selbstorganisierte Kompositmaterialien aus konjugierten Verbindungen und Halbleiter-nano-Kristalliten Y1 - 1999 ER - TY - BOOK ED - Brehmer, Ludwig ED - Schrader, Sigurd ED - Wüstneck, Rainer T1 - Materials science and engineering / C Y1 - 1999 ER - TY - JOUR A1 - Herwig, Falk A1 - Blöcker, Thomas T1 - Overshoot in giant stars Y1 - 1999 ER - TY - JOUR A1 - Mahler, J. A1 - Rafler, G. A1 - Stiller, Burkhard T1 - Modified melamines and melamine resins for E/Z-isomerization Y1 - 1999 ER - TY - JOUR A1 - Stiller, Burkhard A1 - Köpnick, Thomas A1 - Muzikante, I. A1 - Neilands, O. A1 - Utinans, M. A1 - Dubrovich, O. A1 - Karageorgiev, Peter A1 - Brehmer, Ludwig T1 - Optically induced switching effect of polymer containing indandione-1,3-pyridinium betaine side chains Y1 - 1999 SN - 0378-2271 ER - TY - THES A1 - Wegener, Michael T1 - Polungsverhalten und Depolarisierung ferroelektrischer und nicht ferroelektrischer Polymere Y1 - 1999 CY - Potsdam ER - TY - JOUR A1 - Wambsganß, Joachim T1 - Gravitational Lensing as a Universal Astrophysical Tool Y1 - 1999 ER - TY - JOUR A1 - Wellstein, Stephan A1 - Langer, Norbert T1 - Convection and compact stellar remnants in massive close binaries Y1 - 1999 ER - TY - JOUR A1 - Gustina, D. A1 - Markava, E. A1 - Muzikante, I. A1 - Stiller, Burkhard A1 - Brehmer, Ludwig T1 - Photoisomerisation process of self-assembled monolayers of some novel azobenzenes Y1 - 1999 ER - TY - JOUR A1 - Langer, Norbert A1 - Heger, Alexander T1 - Massive star evolution Y1 - 1999 ER - TY - JOUR A1 - Wambsganß, Joachim A1 - Brunner, H. A1 - Schindler, Sabine A1 - Falco, E. T1 - The gravitationally lensed quasar Q2237+0305 in X-rays: ROSAT/HRI detection of the "Einstein Cross" N2 - We report the first detection of the gravitationally lensed quasar Q2237+0305 in X-rays. With a ROSAT/HRI exposure of 53 ksec taken in Nov./Dec. 1997, we found a count rate of 0.006 counts per second for the combined four images. This corresponds to an X-ray flux of 2.2*E(-13) erg/cm(2) /sec and an X-ray luminosity of 4.2*E(45) erg/sec (in the ROSAT energy window 0.1-2.4 keV). The ROSAT/HRI detector is not able to resolve spatially the four quasar images (maximum separation 1.8 arcsec). The analysis is based on about 330 source photons. The signal is consistent with no variability, but with low significance. This detection is promising in view of the upcoming X-ray missions with higher spatial/spectral resolution and/or collecting power (Chandra X-ray Observatory, XMM and ASTRO-E). Y1 - 1999 ER - TY - JOUR A1 - Geue, Thomas A1 - Pietsch, Ullrich A1 - Haferkorn, J. A1 - Stumpe, Joachim A1 - Date, R. W. A1 - Fawcett, A. H. T1 - Competition of alignment and aggregation? : Phenomena in constrained films of LC poly(olefin ulfone)s and maleic anhydride co- and terpolymers Y1 - 1999 ER - TY - JOUR A1 - Wambsganß, Joachim A1 - Schindler, Sabine T1 - ROSAT observations of clusters CL0500-24 & CL0939+4713 Y1 - 1999 ER - TY - JOUR A1 - Struth, Bernd A1 - Decher, Gero A1 - Schmitt, J. A1 - Hofmeister, Wolfgang A1 - Neißendorfer, Frank A1 - Pietsch, Ullrich A1 - Brezesinski, Gerald A1 - Möhwald, Helmuth T1 - Chemical modification of Topaz surfaces Y1 - 1999 SN - 0928-4931 ER - TY - BOOK A1 - Schön, Lutz-Helmut ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 6, Lehrerbd., mit Kopiervorlagen, Gymnasium Nordrhein-Westfalen Y1 - 1999 SN - 3-06-022242-8 PB - Volk und Wissen Verl. CY - Berlin ER - TY - BOOK A1 - Liebers, Klaus ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 7/8, [Hauptbd.], Sek. 1 Sachsen Y1 - 1999 SN - 3-06-020741-0 PB - Volk-und-Wissen-Verl. CY - Berlin ER - TY - JOUR A1 - Driebe, Thomas A1 - Blöcker, Thomas A1 - Schönberner, Detlef A1 - Herwig, Falk T1 - The evolution of helium white dwarfs : II. Thermal instabilities N2 - We calculated a grid of evolutionary models for white dwarfs with helium cores (He-WDs) and investigated the occurrence of hydrogen-shell flashes due to unstable hydrogen burning via CNO cycling. Our calculations show that such thermal instabilities are restricted to a certain mass range (M approx 0.21 ... 0.30 Msun), consistent with earlier studies. Models within this mass range undergo the more hydrogen shell flashes the less massive they are. This is caused by the strong dependence of the envelope mass on the white dwarf core mass. The maximum luminosities from hydrogen burning during the flashes are of the order of 105 Lsun. Because of the development of a pulse-driven convection zone whose upper boundary temporarily reaches the surface layers, the envelope's hydrogen content decreases by Delta X approx 0.06 per flash. Our study further shows that an additional high mass-loss episode during a flash-driven Roche lobe overflow to the white dwarf's companion does not affect the final cooling behaviour of the models. Independent of hydrogen shell flashes the evolution along the final white dwarf cooling branch is determined by hydrogen burning via pp-reactions down to effective temperatures as low as approx 8000 K. Y1 - 1999 ER - TY - JOUR A1 - Mikelskis, Helmut A1 - Mavanga, Gil Gabriel T1 - An experimental ("low cost"/"hands on") optics course for Mosambique Y1 - 1999 ER - TY - BOOK A1 - Schön, Lutz-Helmut ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 6, [Hauptbd.], Gymnasium Nordrhein-Westfalen Y1 - 1999 SN - 3-06-020640-6 PB - Volk und Wissen Verl. CY - Berlin ER - TY - JOUR A1 - Zaikin, Alexei A. A1 - Schimansky-Geier, Lutz T1 - Ordering role of additive noise in extended media Y1 - 1999 SN - 1373-5411 ER - TY - JOUR A1 - Holý, Václav A1 - Stangl, Jochen A1 - Zerlauth, S. A1 - Bauer, Günther A1 - Darowski, Nora A1 - Lübbert, Daniel A1 - Pietsch, Ullrich T1 - Lateral arrangement of self-assembled quantum dots in an SiGe/Si superlattice Y1 - 1999 ER - TY - JOUR A1 - Landa, Polina S. A1 - Zaikin, Alexei A. A1 - Ginevsky, A. S. A1 - Vlasov, Ye. V. T1 - Turbulence and coherent structures in subsonic submerged jets : control of turbulence Y1 - 1999 SN - 0218-1274 ER - TY - JOUR A1 - Landa, Polina S. A1 - Zaikin, Alexei A. T1 - Noise-induced phase transitions in nonlinear oscillators Y1 - 1999 SN - 1-563-96863-0 ER - TY - BOOK ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 7, Arbeitsh., Sek. 1 Sachsen Y1 - 1999 SN - 3-06-020748-8 PB - Volk-und-Wissen-Verl. CY - Berlin ER - TY - BOOK ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 8, Arbeitsh., Sek. 1 Sachsen Y1 - 1999 SN - 3-06-020826-3 PB - Volk-und-Wissen-Verl. CY - Berlin ER - TY - BOOK ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 7/8, Lehrerbd., mit Kopiervorlagen, Sek. 1 Sachsen Y1 - 1999 SN - 3-06-022245-2 PB - Volk-und-Wissen-Verl. CY - Berlin ER - TY - BOOK ED - Mikelskis, Helmut ED - Wilke, Hans-Joachim T1 - Physik plus : Kl. 6, [Hauptbd.], Förderstufe Sachsen-Anhalt Y1 - 1999 SN - 3-06-020642-2 PB - Volk-und-Wissen-Verl. CY - Berlin ER - TY - JOUR A1 - Mikelskis, Helmut T1 - Aus dem Leben gegriffen : Farben in der Physik Y1 - 1999 ER - TY - THES A1 - Däubler, Thomas Karl T1 - Photophysical charakterization of photorefractive polymers T2 - Forschen und Wissen : Physik Y1 - 1999 SN - 3-934389-13-9 SN - 1436-1205 PB - GCA-Verl. CY - Herdecke ER - TY - THES A1 - Hubrig, Swetlana T1 - Chemically peculiar stars : recent development and new directions Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Veldkamp, Markus T1 - Charakterisierung und Optimierung der Beugungseigenschaften von Si1_xGex Monochromatorkristallen Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Fery, Andreas T1 - Arbeiten zur Rasterkraftmikroskopie auf Flüssigkeiten und ihre Anwendung zur Charakterisierung des Benetzungsverhaltens dünner Flüssigkristallfilme Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Knebe, Alexander T1 - Entstehung von Galaxienhaufen und der großräumigen Struktur in dissipationslosen kosmologischen Simulationen Y1 - 1999 ER - TY - THES A1 - Stahn, Jochen T1 - Strukturfaktoränderungen von GaAs und ZnSe unter dem Einfluss eines äußeren elektrischen Feldes Y1 - 1999 ER - TY - THES A1 - Riediger, Rüdiger T1 - Quasar Absorptionslinienverteilung und die Entwicklung der großräumigen Strukturen im Kosmos Y1 - 1999 ER - TY - THES A1 - Lorenz, Dieter T1 - Verstärkungsgeschaltete Cr:YAK und Ti:Saphir Laser mit großer spektraler Bandbreite und guter Strahlqualität Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Retzlaff, Jörg T1 - Das Leistungsspektrum von Galaxienhaufen und die Diskriminierung zwischen Modellen kosmologischer Strukturbildung mit dunkler Materie Y1 - 1999 ER - TY - THES A1 - Drecker, Andreas T1 - Untersuchung magnetohydrodynamischer Instabilitäten in Scherströmungen Y1 - 1999 ER - TY - THES A1 - Gräfener, Götz T1 - Spektralanalysen von WC-Sternen in der LMC Y1 - 1999 ER - TY - THES A1 - Auch, Mark T1 - Langsame Moleküldiffusion in Lipid-/Polyelektrolytmultischichten Y1 - 1999 ER - TY - THES A1 - Leporatti, Stefano T1 - Morphological investigations of structural changes in Phospholipid monolayers induced by transfer from water onto solid substrates Y1 - 1999 ER - TY - THES A1 - Theißen, Oliver Benjamin T1 - Nichtgleichgewichtsdynamik von amphiphilen Systemen Y1 - 1999 ER - TY - THES A1 - Guasti, Giovanna T1 - Nonlinear analysis of neurophysiological and motor control time series Y1 - 1999 ER - TY - THES A1 - Hermsdorf, Nadja T1 - Aggregationsverhalten von Polyelektrolyt-Blockcopolymeren Y1 - 1999 ER - TY - THES A1 - Bae, Sung-Min T1 - Nichtlinear optische Untersuchungen an Adsorptionsschichten löslicher Amphiphile - Überprüfung thermodynamischer Modelle Y1 - 1999 ER - TY - THES A1 - Rollik, Denis T1 - Wechselwirkungen zwischen Ladungen und Dipolen in teilkristallinen polaren Polymeren Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Petzschmann, Olaf T1 - Längenskalen granularer Cluster Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Döbereiner, Hans-Günther T1 - On the curvature of membranes Y1 - 1999 CY - Potsdam ER - TY - JOUR A1 - Hainzl, Sebastian A1 - Zöller, Gert A1 - Kurths, Jürgen T1 - Self-organized criticality model for earthquakes : Quiescence, foreshocks and aftershocks Y1 - 1999 ER - TY - JOUR A1 - Kraut, Suso A1 - Feudel, Ulrike A1 - Grebogi, Celso T1 - Preference of attractors in noisy multistable systems Y1 - 1999 ER - TY - JOUR A1 - Lai, Ying Cheng A1 - Grebogi, Celso A1 - Kurths, Jürgen T1 - Modeling of deterministic chaotic systems Y1 - 1999 ER - TY - JOUR A1 - Park, Eun Hyoung A1 - Zaks, Michael A. A1 - Kurths, Jürgen T1 - Phase synchronization in the forced lorenz system Y1 - 1999 ER - TY - JOUR A1 - Hainzl, Sebastian A1 - Zöller, Gert A1 - Kurths, Jürgen T1 - Similar power laws for foreshock and aftershock sequences in a spring block model for earthquakes Y1 - 1999 ER - TY - THES A1 - Xu, Liyu T1 - Mikromanipulation von Membranen : eine Untersuchung zur Dynamik tubulärer Vesikel unter axialer Kraft Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Weikl, Thomas R. T1 - Adhäsion von mehrkomponentigen Membranen Y1 - 1999 CY - Potsdam ER - TY - JOUR A1 - Giebler, Rainer A1 - Schulz, Burkhard A1 - Reiche, Jürgen A1 - Brehmer, Ludwig A1 - Wühn, Mario A1 - Wöll, Christoph A1 - Smith, Andrew Phillip A1 - Urquhart, Steven G. A1 - Ade, Harald W. A1 - Unger, Wolfgang E. S. T1 - Near-edge x-ray absorption fine structure spectroscopy on ordered films of an amphiphilic derivate of 2,5- Diphenyl-1,3,4-oxadiazole N2 - The surfaces of ordered films formed from an amphiphilic derivative of 2,5-diphenyl-1,3,4-oxadiazole by the Langmuir-Blodgett (LB) technique and organic molecular beam deposition (OMBD) were investigated by the use of near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. For the assignment of the spectral features of the C, N, and O K- edge absorption spectra, fingerprint spectra of poly(p-phenylene terephthalamide)(Kevlar), poly(ethylene terephthalate), poly(p-phenylene-1,3,4-oxadiazole), and 2,5-di- (pentadecyl)-1,3,4-oxadiazole, which contain related chemical moieties, were recorded. Ab initio molecular orbital calculations, performed with explicit treatment of the core hole, are used to support the spectral interpretations. Angle-resolved NEXAFS spectroscopy at the C, N, and O K-edges suggests a preferentially upright orientation of the oxadiazole derivative in the outermost layer of the films. X-ray specular reflectivity data and molecular modeling results suggest a similar interpretation. Y1 - 1999 ER - TY - JOUR A1 - Politi, Antonio A1 - Witt, Annette T1 - Fractal dimension of space-time chaos Y1 - 1999 ER - TY - JOUR A1 - Smith, L. A1 - Ziehmann, Christine A1 - Fraedrich, K. T1 - Uncertainty dynamics and predictability in chaotic systems Y1 - 1999 ER - TY - JOUR A1 - Voss, Henning U. A1 - Kurths, Jürgen T1 - Reconstruction of nonlinear time-delayed feedback models from optical data Y1 - 1999 ER - TY - JOUR A1 - Zaikin, Alexei A. A1 - Garcia-Ojalvo, Jordi A1 - Schimansky-Geier, Lutz T1 - Nonequilibrium first-order phase transition inducd by additive noise Y1 - 1999 ER - TY - JOUR A1 - Ziehmann, Christine A1 - Smith, L. A1 - Kurths, Jürgen T1 - The bootstrap and lyapunov exponents in deterministic chaos Y1 - 1999 ER - TY - JOUR A1 - Gattinger, P. A1 - Gurka, M. A1 - Craats, A. M. van de A1 - Rengel, Heiko A1 - Warman, J. M. A1 - Buck, M. A1 - Neher, Dieter T1 - Mechanism of charge transport in anisotropic layers of a phthalocyanine polymer Y1 - 1999 ER - TY - JOUR A1 - Däubler, Thomas Karl A1 - Neher, Dieter A1 - Rost, H. A1 - Hörhold, Hans-Heinrich T1 - Efficient bulk photogeneration of charge carriers in arylamino-PPV polymer sandwich cells Y1 - 1999 ER - TY - JOUR A1 - Cimrová, V. A1 - Neher, Dieter A1 - Kostromine, S. A1 - Bieringer, Thomas T1 - Optical anisotropy in films of photoaddressable polymers Y1 - 1999 ER - TY - JOUR A1 - Mikat, Jürgen E. R. A1 - Orgzall, Ingo A1 - Lorenz, Bernd A1 - Sapp, S. A1 - Martin, C. R. A1 - Burris, J. L. A1 - Hochheimer, H. D. T1 - High-pressure low-temperature electrical properties of template-synthesied polypyrrole at low synthesis temperature: Dimensional crossover under pressure Y1 - 1999 ER - TY - JOUR A1 - Wüstneck, Rainer A1 - Wüstneck, D. A1 - Vollhardt, R. A1 - Miller, Reinhard A1 - Pison, U. T1 - The influence of spreading solvent traces in the atmosphere on surface tension measurements by using a micro- film balance and the capative bubble method Y1 - 1999 ER - TY - JOUR A1 - Bittner, Reinhard A1 - Däubler, Thomas Karl A1 - Neher, Dieter A1 - Meerholz, Klaus T1 - Influence of the glass-transition and the chromophore content on the steady-state performance of PVK-based photorefractive polymers Y1 - 1999 ER - TY - JOUR A1 - Däubler, Thomas Karl A1 - Pfeiffer, S. A1 - Hörhold, Hans-Heinrich A1 - Neher, Dieter T1 - Photogeneration of charge carriers in segmented arylamino-PPV derivatives Y1 - 1999 ER - TY - JOUR A1 - Rengel, Heiko A1 - Gattinger, P. A1 - Silverova, R. A1 - Neher, Dieter T1 - Conductivity measurements of electrochemically oxidized Langmuir-Blodgett films of phthalocyaninato- polysiloxanes Y1 - 1999 ER - TY - JOUR A1 - Däubler, Thomas Karl A1 - Cimrova, V. A1 - Pfeiffer, S. A1 - Hörhold, Hans-Heinrich A1 - Neher, Dieter T1 - Field and wavelength dependence of charge carrier photogeneration in soluble PPV derivatives Y1 - 1999 ER - TY - JOUR A1 - Urayama, Kenji A1 - Kircher, Oliver A1 - Böhmer, Roland A1 - Neher, Dieter T1 - Investigations of ferroelectric-to-paraelectric phase transition of vinylidenefluoride trifluoroethylene copolymer thin films by electromechanical interferometry Y1 - 1999 ER - TY - JOUR A1 - Rengel, Heiko A1 - Altmann, Markus A1 - Neher, Dieter A1 - Harrison, Craig B. A1 - Myrick, Michael L. A1 - Bunz, Uwe H. F. T1 - Assignment of the optical transitions in 1,3- diethynylcyclobutadiene (cyclopentadienyl)cobalt oligomers Y1 - 1999 ER - TY - JOUR A1 - Former, C. A1 - Wagner, H. A1 - Richert, R. A1 - Neher, Dieter A1 - Müllen, K. T1 - Orientation and dynamics of chainlike dipole arrays: Donor-acceptor-substituted oligophenylenevinylenes in a polymer matrix Y1 - 1999 ER - TY - THES A1 - Voss, Henning U. T1 - Nichtlineare statistische Methoden zur Datenanalyse T2 - Stoffdynamik in Geosystemen Y1 - 1999 SN - 0949-4731 VL - 3 PB - Selbstverl. der Arbeitsgruppe Stoffdynamik in Geosystemen CY - Potsdam ER - TY - BOOK A1 - Strehmel, Bernd A1 - Schrader, Sigurd A1 - Seifert, H. ED - Rettig, W. T1 - Applied fluorescence in chemistry, biology and medicine Y1 - 1999 SN - 3-540-64451-2 PB - Springer CY - Berlin ER - TY - JOUR A1 - Brehmer, Ludwig T1 - Ultrathin films for senorics and molecular electronics Y1 - 1999 SN - 3-540-65487-9 ER - TY - JOUR A1 - Knochenhauer, Gerald A1 - Penacorada, Florencio A1 - Reiche, Jürgen A1 - Brehmer, Ludwig A1 - Tredgold, Richard H. A1 - Barberka, Thomas Andreas T1 - Multilayers of perfluorinated fatty acids N2 - We have formed Y layers of perfluorododecanoic acid CF3(CF2)10COOH by thermal evaporation in vacuo and of perfluorotetradecanoic acid CF3(CF2)12COOH by thermal evaporation and by the Langmuir-Blodgett (LB) technique. We have obtained the bilayer spacing of both these materials by X-ray diffraction and have also studied the in-plane structure of these materials by means of grazing incidence diffraction (GID). Computer modelling was used to interpret the results obtained. For the perfluorododecanoic acid, we find two stable untwisted phases at 25°C and a combination of these two predicts both the Bragg peaks arising from the layer structure and the GID results. Our experimental results show that the perfluorotetradecanoic acid exists in the generally accepted helical structure. Computer modelling leads to the conclusion that closely packed perfluorinated chains with 12 or less carbon atoms should exist in an untwisted state while molecules having more than 12 carbon atoms show the onset of the helical conformation. Y1 - 1999 ER - TY - JOUR A1 - Mittler, Kay A1 - Lorenz, Dieter A1 - Menzel, Ralf T1 - Time resolved emission spectra of a broadband ns-laser with 0.5 W average output power used as light source for the coherence radar Y1 - 1999 ER - TY - JOUR A1 - Krägel, Jürgen A1 - Grigoriev, D. O. A1 - Makievski, A. V. A1 - Miller, Reinhard A1 - Fainerman, V. B. A1 - Wilde, Peter J. A1 - Wüstneck, Rainer T1 - Consistency of surface mechanical properties of spread protein layers at the liquid - air interface at different spreading conditions Y1 - 1999 SN - 0927-7765 ER - TY - JOUR A1 - Wüstneck, Rainer A1 - Moser, B. A1 - Muschiolik, Gerald T1 - Interfacial dilational behaviour of adsorbed ß-lactoglobulin layers at the different fluid interfaces Y1 - 1999 SN - 0927-7765 ER - TY - JOUR A1 - Krägel, Jürgen A1 - Wüstneck, Rainer A1 - Husband, Fiona A1 - Wilde, Peter J. A1 - Makievski, A. V. A1 - Grigoriev, D. O. A1 - Li, Junbai T1 - Properties of mixed protein/surfactant adsorption layers Y1 - 1999 SN - 0927-7765 ER - TY - JOUR A1 - Wüstneck, Rainer A1 - Wüstneck, N. A1 - Grigoriev, D. O. A1 - Pison, U. A1 - Miller, Reinhard T1 - Stress relaxation behaviour of dipalmitoyl phosphatidylcholine monolayers spread on the surface of a pendant drop Y1 - 1999 SN - 0927-7765 ER - TY - JOUR A1 - Wambsganß, Joachim T1 - Gravitational lensing : numerical simulations with a hierarchical tree code Y1 - 1999 ER - TY - JOUR A1 - Beige, Almut A1 - Hegerfeldt, G. C. T1 - Cooperative effects in the light and dark periods of two dipole-interacting atoms N2 - If an atom is able to exhibit macroscopic dark periods, or electron shelving, then a driven system of tow atoms has three types of these fluorescence types as a simple and easily accessible indivator of cooperative effects. As an examble, we study two dipole-interacting V systems by simulation techniques. We show that the durations of the two types of light periods exhibit marked sepatation-dependent oscillations and that they vary in phase with the real part of the dipole-dipole coupling constant. Y1 - 1999 ER - TY - JOUR A1 - Eisert, Jens A1 - Plenio, M. B. T1 - A comparison of entanglement measures N2 - We compare the entanglement of formation with a measure defined as the modulus of the negative eigenvalue of the partial transpose. In particular we investigate whether both measures give the same ordering of density perators with respect to the amount of entanglement. Y1 - 1999 ER - TY - JOUR A1 - Höpfner, Ulf A1 - Hehl, H. A1 - Brehmer, Ludwig T1 - Preparation of ordered thin gold films Y1 - 1999 ER - TY - JOUR A1 - Krause, Jens-Peter A1 - Wüstneck, Rainer A1 - Schwenke, Klaus Dieter T1 - Interfacial behavior of succinylated fabab bean legumin at low ionic strength Y1 - 1999 ER - TY - JOUR A1 - Wüstneck, Rainer A1 - Enders, P. A1 - Wüstneck, N. A1 - Pison, U. A1 - Miller, Reinhard T1 - Stress relaxation in spread dipalmitoyl phosphatidylglycerol monolayers Y1 - 1999 ER - TY - JOUR A1 - Wüstneck, Rainer A1 - Fainerman, V. B. A1 - Zauls, V. T1 - Characterisation and modelling of cis-trans photoisomerisation of a trifluoromethoxy substituted metacrylate copolymer monolayer at a fluid interface Y1 - 1999 ER - TY - JOUR A1 - Makievski, A. V. A1 - Miller, Reinhard A1 - Fainerman, V. B. A1 - Krägel, Jürgen A1 - Wüstneck, Rainer T1 - Adsorption of proteins at the gas-liquid and oil-water interfaces as studied by the pendant drop method Y1 - 1999 ER - TY - JOUR A1 - Schrader, Sigurd A1 - Schürmann, H. A1 - Koch, Norbert A1 - Prescher, Dietrich T1 - Electronic structure of new donor acceptor substituted chromophores Y1 - 1999 ER - TY - JOUR A1 - Schürmann, H. A1 - Koch, Norbert A1 - Vollmer, A. A1 - Schrader, Sigurd A1 - Neumann, M. T1 - Angle resolved ultraviolet photoelectron spectroscopy (ARUPS) of oriented sexiphenyl layers Y1 - 1999 ER - TY - JOUR A1 - Schürmann, H. A1 - Koch, Norbert A1 - Imperia, Paolo A1 - Schrader, Sigurd A1 - Jandke, M. A1 - Strohriegl, P. A1 - Schulz, Burkhard A1 - Leising, G. A1 - Brehmer, Ludwig T1 - Ultraviolet photoelectron spectroscopic study of heterocyclic model compounds for electroluminescent devices Y1 - 1999 ER - TY - JOUR A1 - Schrader, Sigurd A1 - Imperia, Paolo A1 - Koch, Norbert A1 - Leising, G. A1 - Falk, B. T1 - Organic Light-emitting devices based on new heterocyclic compounds Y1 - 1999 ER - TY - JOUR A1 - Englisch, Uwe A1 - Penacorada, Florencio A1 - Brehmer, Ludwig A1 - Pietsch, Ullrich T1 - X-ray and neutron reflection analysis of the structure and the molecular exchange process in simple and complex fatty acid salt Langmuir-Blodgett multilayers Y1 - 1999 ER - TY - JOUR A1 - Schrader, Sigurd A1 - Vismants, Z. A1 - Dietzel, Birgit A1 - Flueraru, C. A1 - Prescher, Dietrich A1 - Reiche, Jürgen A1 - Motschmann, H. A1 - Brehmer, Ludwig T1 - Linear and nonlinear optical properties of Langmuir-Blodgett multilayers from chromophore-containing maleic acid anhydride polymers Y1 - 1999 ER - TY - THES A1 - Katholy, Stefan T1 - Strukturaufklärung von Langmuir-Filmen mittels Reflexionsisothermen Y1 - 1999 CY - Potsdam ER - TY - THES A1 - von Rekowski, Matthias T1 - 2D-Akkretionsscheibenmodelle mit dynamoerregten Magnetfeldern Y1 - 1999 CY - Potsdam ER - TY - THES A1 - Estel, Cornelia T1 - Ausbreitung energetischer Elektronen von der Sonnenkorona in die innere Heliosphäre Y1 - 1999 CY - Potsdam ER -