Forschungsberichte ohne Pflichtabgabe (DFG, IGF…)
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- ItemFunctionalizing electronic and magnetic properties in oxide thin films and heterointerfaces: electric polarization and polar discontinuity(Hannover : Technische Informationsbibliothek, 2025) Lubk, Axel; Sing, MichaelInterfacing different materials in nanoscale layered structures is key for the operation of any modern electronic component. In semiconductor electronics, the electronic bands are engineered to bend at interfaces in order to accumulate charge. The bending of bands is achieved by means of internal electric fields associated with the specific, spatial distributions of dopants which at the same time donate mobile charges. Applying external electric gate fields, in turn, enables the control of the mobile charges and hence the switching of currents. With the advent of thin film technologies capable of fabricating ultrathin layers with atomically sharp interfaces also for transition-metal oxides, these concepts can be transferred to this family of compounds. In addition to conductivity, all functionalities offered by this material class, such as superconductivity, magnetism, and correlation-induced metal-insulator transitions may be manipulated and tuned by heteroin- terfacing. This is due to the subtle balance between the competing microscopic interactions related to charge, spin, orbital, and lattice degrees of freedom, which gives rise to the mentioned phenomena. Control knobs are design, materials choice, strain, layer thicknesses, polarity-induced internal fields and many others. Within this project we focused on 3 d transition-metal oxides that, as stoichiometric bulk materials, are close to or in Mott insulating (LaVO3, LaTiO3), ferroelectric (LaFeO3), and magnetic (La0.7Sr0.3MnO3) phases. If properly integrated into thin film architectures to tailor their properties, they hold great promise for use as switches, sensors, or in photovoltaics. Using advanced transmission electron microscopy and photoelectron spectroscopy techniques combined with transport characterization we derived complete band diagrams of heterojunctions, elucidated the mechanism of electronic reconstruction, investigated (magneto-)transport properties such as (linear) colossal magnetoresistance, and advanced the experimental methods employed.
- ItemWaldentwicklung und Rohholzaufkommen : Modellierung für die Jahre 2023 bis 2062(Hannover : Technische Informationsbibliothek, 2025-06) Dunger, Karsten; Schad, Tobias; Rock, Joachim; Rüter, SebastianDatei-Upload durch TIB
- ItemYoung Researchers Seminar 2025 : Proceedings of the 12th Young Researchers Seminar, hosted by BASt, 3 – 5 June, 2025 (YRS 2025)(Hannover : Technische Informationsbibliothek, 2025-09)The Young Researchers Seminar (YRS) is a unique event organised by the YRS Supporting Organisations, ECTRI, FEHRL, FERSI, EURNEX and HUMANIST every two years since 2003. The Supporting Organisations provide financial support for the Seminar, nominate representatives for the Steering Committee and disseminate the calls. The 12th edition of the YRS was hosted by BASt from 3rd to 5th June 2025 at its premises. 32 young researchers from 12 countries and 16 organisations participated. In the preparation phase, they were supported by 13 tutors. This report contains the papers of the young researchers who have agreed to the publication. Datei-Upload durch TIB
- ItemDie neue EU-Kommunalabwasserrichtlinie und ihre Bedeutung für Bayern : 51. Abwassertechnisches Seminar(Hannover : Technische Informationsbibliothek, 2024) Drewes, Jörg E.; Koch, Konrad; Aumeier, Benedikt; Helmreich, BrigitteDatei-Upload durch TIB
- ItemAutex 2025 World Conference – Book of Abstracts : 11-13 June 2025 Dresden, Germany(Hannover : Technische Informationsbibliothek, 2025) Kyzymchuk, Olena; Kyosev, Yordan; Cherif, ChokriDatei-Upload durch TIB