Books

As a new class of quantum matter, topological insulators (TIs) have attracted significant attention in the field of condensed matter physics due to their exotic intrinsic physical properties. TIs, which exhibits either two-dimensional (2D) or three-dimensional (3D) topology, are materials that are insulating in the bulk and conducting at the edge or surface. [...]

The European Union acknowledges climate change as an existential threat and is pursuing a growth strategy through the European Green Deal that envisions the development of a resource-efficient and competitive economy while at the same time adhering to climate protection measures [1, 2]. These measures include Europe achieving net-zero greenhouse gas emissions by 2050. [...]

Im Kampf gegen die Klimakrise ist der Aufbau treibhausgasneutraler Energie- und Wirtschaftssysteme von zentraler Bedeutung. Fluktuierende erneuerbare Energien, Sektorkopplung und steigender Speicherbedarf führen zu einer erheblichen Zunahme der Systemkomplexität zukünftiger Energiesysteme. [...]

This thesis deals with the 2D material graphene, which has been the subject of intense research in recent years due to its unique properties. The main focus is on different ways to tune the properties of graphene. [...]

Plant root systems are essential for global food security. Their growth, however, is governed by a complex interplay of soil's physical, biological, and chemical properties and is critically limited by soil compaction. [...]

The ever-increasing demand for data and computing power ignited by data driven technology raises the desire for a new generation of faster and more efficient computing devices. Furthermore, the sheer amount of data generated requires storage devices to pack information as dense as possible. [...]

This thesis investigates the variability of ecosystem processes—gross primary production (GPP), evapotranspiration (ET), and water-use efficiency (WUE)—in Europe under climate change, with a focus on their trends and responses to droughts from 1995 to 2018. The work uses three complementary data sources: satellite-based remote sensing, in situ eddy covariance observations (ICOS), and land surface model simulations with CLM5. [...]