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Impact of Four-Valent Doping on the Crystallographic Phase Formation for Ferroelectric HfO from First-Principles: Implications for Ferroelectric Memory and Energy-Related Applications
Christopher Künneth, Robin Materlik, Max Falkowski +1
The ferroelectric properties of nanoscale silicon doped HfO promise a multitude of applications ranging from ferroelectric memory to energy-related applications. The reason for…
A computational study of hafnia-based ferroelectric memories: from ab initio via physical modeling to circuit models of ferroelectric device
Milan Pešić, Christopher Künneth, Michael Hoffmann +7
The discovery of ferroelectric properties of binary oxides revitalized the interest in ferroelectrics and bridged the scaling gap between the state-of-the-art semiconductor technol…
Symmetry and structure of carbon-nitrogen complexes in gallium arsenide from infrared spectroscopy and first-principles calculations
Christopher Künneth, Simon Kölbl, Hans Edwin Wagner +3
Molecular-like carbon-nitrogen complexes in GaAs are investigated both experimentally and theoretically. Two characteristic high-frequency stretching modes at \num{1973} and \SI{20…
The impact of charge compensated and uncompensated strontium defects on the stabilization of the ferroelectric phase in HfO
Robin Materlik, Christopher Künneth, Thomas Mikolajick +1
Different dopants with their specific dopant concentration can be utilized to produce ferroelectric HfO thin films. In this work it is explored for the example of Sr in a compr…