Browsing Fakultät für Physik (inkl. GAUSS) by Advisor & Referee "Kirchheim, Reiner Prof. Dr."
Now showing items 21-40 of 51
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Controlled delamination of metal films by hydrogen loading
(2009-01-28)In this work we quantitatively determine the adhesion energy between metal films and their substrates. Therefore a new controlled buckling technique is established, applying the strong ... -
Investigation of the Amorphization of iron and austenitic stainless steel films by supersaturation with Boron, Carbon, Nitrogen and Oxygen
(2008-12-10)This work investigates the amorphization behavior of Fe-based alloys and the formation of metallic glasses based on conventional.It is well known, that small additions of alloying elements ... -
Feldinduzierte Tieftemperaturoxidation nanoskaliger Metall- und Halbleiterstrukturen
(2008-12-04)At the surface of almost all metals and semiconductors oxide formation occurs when exposed to atmosphere. The oxidation reaction proceeds along a number of partial reaction steps with the ... -
Strukturbildung und Rauigkeiten an Grenzflächen des Ni-Ag-Legierungssystems
(2008-05-30)The systematic alteration of surface and interface structure is of special interest particularly in the field of thin film and nanotechnology where either smooth or specifically patterned ... -
Thermische Stabilität und Reaktion metallischer Multilagen
(2008-01-15)In this work nano-scaled Cu/Py (Py-Permalloy-Ni79Fe21 and Al/Cu thin films, required by modern electronic applications, were successfully investigated regarding their thermal ... -
Computer Simulations for Hydrogen Loaded Palladium Clusters
(2007-08-07)In this work, a new expression for the chemical potential μ of H in Pd is used, which relies on an extension of Widom's particle insertion method. Being an exact expression, this μ contains ... -
Characterization of the electronic properties of LaIrIn5: calculations, transport-, heat capacity- and de Haas-van Alphen-experiments
(2007-02-26)The system LaIrIn5 constitutes the reference model for the 115-class of rare-earth intermetallic compounds. Some of them are heavy-fermion systems showing, besides superconductivity and magnetism, anomalous conduction ... -
Short range ordering and microstructure property relationship in amorphous alloys
(2007-01-29)A novel algorithm, "Next Neighbourhood Evaluation (NNE)", is enunciated during the course of this work, to elucidate the next neighbourhood atomic vicinity from the data, analysed using ... -
Mikrostrukturelle Untersuchungen an Mangan-dotiertem Galliumnitrid mittels fortgeschrittener Methoden der hochauflösenden und analytischen Transmissionselektronenmikroskopie
(2006-12-06)The magnetic properties of a diluted magnetic semiconductor depend on the microstructure of the material. In this work transmission electron microscopy was applied to Mn-doped GaN to ... -
Mechanical spectroscopy of polymers with reduced dimensions and increasing cross-linking degree
(2006-07-10)The effect of reduced dimensions and increasing cross-linking degree on dynamics of polymer chains near the glass transition temperature, Tg, have been studied by means of the Vibrating ... -
<i>C</i><sub>60</sub> as a template for the creation of metal and semiconductor nanoclusters
(2006-01-24)Due to their spherical shape, thin films made up of C60 fullerene molecules have a highly corrugated surface. This provides a large number of natural defects, which could provide nucleation ... -
Zum Einfluss der elastischen Verzerrungsenergie auf die Frühstadien der Entmischung von Cu2at.%Co
(2005-10-07)In the present work the decomposition in the Cu2at.%Co system was characterized at 703K, 763K und 853K by means of Field Ion Microscopy (FIM), Tomographic Atom Probe (TAP) and Field Ion ... -
Nanoskalige Metall-Wasserstoff-Systeme
(2005-09-30)What happens to a metal when its size is reduced? What changes are expected, what has to be taken into account? By taking the metal-hydrogen system (M-H-system) as model system this book ... -
Korngrenzsegregation in Silber-Nickel und Kupfer-Wismut Legierungen
(2005-09-30)The objective of this study is the characterization of the grain boundary segregation in Ag-Ni and Cu-Bi alloys by means of tomographic atom probe (TAP) and other high resolution characterizing ... -
Charakteristische Eigenschaften laserdeponierter Poly(methyl-methacrylat)-Filme
(2005-05-20)Over the last decades polymeric thin films have shown their growing importance for applications. In this contribution, the properties of pulsed UV-laserdeposited (PLD) poly (methyl ... -
Structural and Magnetic Properties of the Glass-Forming Alloy Nd60Fe30Al10
(2005-02-28)Structural and thermophysical investigations on multicomponent bulk metallic glasses have been intensively carried out since their discovery in 1990. Since then, particular attention has been paid to the chemical and ... -
Freie Enthalpie binärer metallischer Legierungsschmelzen: Molekulardynamik Simulationen für NixZr1-x
(2005-01-31)A method to determine the free enthalpy of molecular dynamics simulated binary alloy melts is introduced. Here, first the entropy and free enthalpy of the ordered, intermetallic crystalline A x B 1-x - phases are ... -
Nanocharacterization of magnetoresistant oxide tunnel barrier structures
(2004-10-15)Oxide tunnel barriers (TMR = Tunnel Magneto Resistance) are currently of interest for application in magnetic sensor and storage devices. Compared to Giant Magneto Resistance (GMR) devices, ... -
Size-selective synthesis of nanometer-sized Palladium clusters and their hydrogen solvation behaviour
(2004-04-07)Nanometer-sized palladium clusters were prepared and studied in this work; First, different cluster sizes were prepared using an electrochemical technique. Second, the interaction of the ... -
The Scanning Transmission X-Ray Microscope at BESSY II
(2004-02-04)Combining near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and zone plate imaging, scanning transmission X-ray microscopes (STXMs) provide both high chemical sensitivity and ...