• Crystalline silicon surface passivation using aluminum oxide : fundamental understanding and application to solar cells 

  Veith-Wolf, Boris Adrian (München : Verlag Dr. Hut, 2018)

  In the present thesis, different aspects of the silicon surface passivation provided by aluminum oxide (Al2O3) were investigated; from the fundamental understanding of the surface passivation especially on n-type silicon ...
• Fourier integral operators on non-compact manifolds 

  Doll, Moritz (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)

  We consider Fourier integral operators on non-compact manifolds and their applications, in particular in spectral theory. Fourier integral operators appear naturally as the solution operators of certain pseudodifferential ...
• Resonanz-Ramanspektroskopie an Carotinoiden in Algen zur Bestimmung der Kinetik des Violaxanthinzyklus 

  Koch, Matthias (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)

  Diese Arbeit beschreibt die erste gelungene Bestimmung der Kinetik des Violaxanthinzyklus in vivo auf Basis von Resonanz-Ramanspektroskopie. Der Violaxanthinzyklus ist ein Regelmechanismus der Photosynthese und besteht ...
• Untersuchungen zum Einfluss erzwungener atmosphärischer Rollenkonvektion in Kaltluftausbrüchen auf den vertikalen turbulenten Transport in der atmosphärischen und der ozeanischen Grenzschicht mittels Large-Eddy Simulationen 

  Fricke, Jens (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)

  Wetter und Klima werden signifikant durch den turbulenten Austausch von Wärme, Impuls, Wasser und Spurenstoffen zwischen der Atmosphäre und dem Ozean beeinflusst. Diese Austauschprozesse finden innerhalb der atmosphärischen ...
• Zeeman splitting of zero-dimensional heavy-hole states in a strongly strained Ge quantum well 

  Agafonov, Oleksiy B.; Haendel, K.-M.; Winkler, R.; Denker, U.; Schmidt, O.G.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)

  The method of magnetotunneling spectroscopy has been used for experimental probing of heavy-hole impurity states in Si/Ge double-barrier heterostructures in magnetic field up to 18 Tesla. The impurities were located in a ...
• Super-poissonian shot noise in tunneling through coupled self-assembled InAs quantum dots 

  Barthold, P.; Hohls, Frank; Maire, Niels; Pierz, Klaus; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)

  We apply an external bias voltage to vertically coupled self-assembled InAs quantum dots. We observe pronounced peaks in the I-V characteristic due to resonant transport through a stack of coupled quantum dots. We investigate ...
• Noninvasive detection of charge rearrangement in a quantum dot 

  Fricke, Christian; Rogge, M.C.; Harke, B.; Reinwald, M.; Wegscheider, W.; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)

  We demonstrate new results on electron redistribution on a single quantum dot caused by magnetic field. A quantum point contact is used to detect changes in the quantum dot charge. We are able to measure both the change ...
• Probing spin configurations in quantum dots 

  Rogge, M.C.; Fühner, C.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)

  We study the magnetoconductance of lateral quantum dots in high magnetic fields. We use spin blockade and Kondo effect to investigate the spin configuration and the spin filling mechanism and find a dependence on the ...
• Multi-terminal magnetotransport measurements over a tunable graphene p-n junction created by AFM-nanomachining 

  Schmidt, H.; Smirnov, D.; Rode, J.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)

  An Atomic Force Microscope is used to alter one part of a single layer graphene sample locally. Transport experiments at low temperatures are then used to characterize the different parts independently with field effect ...
• Efficient magneto-optical trapping of a metastable helium gas 

  Pereira Dos Santos, F.; Perales, F.; Léonard, J.; Sinatra, A.; Wang, J.; Pavone, F.S.; Rasel, E.; Unnikrishnan, C.S.; Leduc, M. (Les Ulis : EDP Sciences, 2001)

  This article presents a new experiment aiming at BEC of metastable helium atoms. It describes the design of a high flux discharge source of atoms and a robust laser system using a DBR diode coupled with a high power Yb ...
• Justification of mean-field coupled modulation equations 

  Schneider, G. (Cambridge : Cambridge University Press, 1997)

  We are interested in reflection symmetric (x → - x) evolution problems on the infinite line. In the systems which we have in mind, a trivial ground state loses stability and bifurcates into a temporally oscillating, spatial ...
• Flow properties for Young-measure solutions of semilinear hyperbolic problems 

  Mielke, A. (Cambridge : Cambridge University Press, 1999)

  For hyperbolic systems in one spatial dimension ∂tu + C∂xu = f(u), u(t, x) ∈ ℝd, we study sequences of oscillating solutions by their Young-measure limit, μ, and develop tools to study the evolution of μ directly from the ...
• On Vertices of Degree n in Minimally n-Edge-Connected Graphs 

  Mader, W. (Cambridge : Cambridge University Press, 1995)

  Let G be a minimally n-edge-connected finite simple graph with vertex number |G| ≥ 2n + 2 + [3/n] and let n ≥ 3 be odd. It is proved that the number of vertices of degree n in G is at least ((n − 1 − ∈n)/(2n + 1))|G| + 2 ...
• A similarity theory of locally homogeneous and isotropic turbulence generated by a Smagorinsky-type LES 

  Muschinski, A. (Cambridge : Cambridge University Press, 1996)

  A Kolmogorov-type similarity theory of locally homogeneous and isotropic turbulence generated by a Smagorinsky-type large-eddy simulation (LES) at very large LES Reynolds numbers is developed and discussed. The underlying ...
• On Vertex-Edge-Critically n-Connected Graphs 

  Mader, W. (Cambridge : Cambridge University Press, 1994)

  All digraphs are determined that have the property that when any vertex and any edge that are not adjacent are deleted, the connectivity number decreases by two. © 1994, Cambridge University Press. All rights reserved.
• Model computations of the influence of carbon impurities on the ionization relaxation in krypton shock waves 

  Klages, D.; Demmig, F. (Cambridge : Cambridge University Press, 1991)

  Chemical reactions in shock waves can be strongly affected by minute impurity concentrations. Thus it is not adequate to take into account the additional impurity electron production in relaxation studies simply by global ...
• Model calculations of the ionization relaxation and radiative cooling in unsteady krypton and xenon shock waves 

  Krauss-Varban, D.; Demmig, F. (Cambridge : Cambridge University Press, 1984)

  The ionization relaxation and radiative cooling of weakly unsteady shock waves in krypton and xenon is examined. We find that, besides radiation energy loss, the shock-tube boundary layers and shock attenuation strongly ...
• Uncertainty relations in quantum theory 

  Schwonnek, René (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)

  Uncertainty relations are commonly praised as one of the central pillars of quantum theory. Usually, they are taught in the first weeks of a beginners lecture, and introduced in the ?rst chapters of a textbook. However, ...
• Spontaneous symmetry breaking in spinor Bose-Einstein condensates 

  Scherer, M.; Lücke, Bernd; Peise, J.; Topic, O.; Gebreyesus, G.; Deuretzbacher, Frank; Ertmer, Wolfgang; Santos, Luis; Klempt, Carsten; Arlt, Jan J. (College Park : American Physical Society, 2013)

  We present an analytical model for the theoretical analysis of spin dynamics and spontaneous symmetry breaking in a spinor Bose-Einstein condensate (BEC). This allows for an excellent intuitive understanding of the processes ...
• Tunable dual-species Bose-Einstein condensates of 39K and 87Rb 

  Wacker, L.; Jørgensen, N.B.; Birkmose, D.; Horchani, R.; Ertmer, Wolfgang; Klempt, Carsten; Winter, N.; Sherson, J.; Arlt, Jan J. (College Park : American Physical Society, 2015)

  We present the production of dual-species Bose-Einstein condensates (BECs) of 39K and 87Rb. Preparation of both species in the |F=1,mF=−1⟩ state enabled us to exploit a total of three Feshbach resonances, which allows for ...

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