6 papers
Delafossites as an unexpected competing phase to infinite-layer oxides
Armin Sahinovic, Benjamin Geisler, Rossitza Pentcheva
Motivated by the discovery of superconductivity in Sr-doped infinite-layer nickelate films on SrTiO(001), we explore the broader landscape of O oxides through comprehen…
Nanoscale Confinement Enhances Ultrafast Demagnetization
Yoav William Windsor, Tobias Lojewski, Moumita Kundu +22
Nanoscale miniaturization has revolutionized the field of spintronics by enabling exponential growth in areal bit density. A similar leap is also expected in device speeds through…
Engineering few-layer graphene by S-doping: from sustaining linear dispersion to flat bands
Armin Sahinovic, Rossitza Pentcheva
Motivated by the technological relevance of S-doped few-layer graphene (FLG) in battery applications and in the oxygen reduction reaction, we systematically explore the effect of b…
Disentangling the dynamics of transient spin and orbital magnetization in SrTiO via the inverse Faraday effect from RT-TDDFT
Andri Darmawan, Markus E. Gruner, Rossitza Pentcheva
Motivated by recent evidence of ferroelectricity and even multiferroicity in the prototypical diamagnetic band insulator SrTiO from terahertz experiments, we investigate the ca…
THz carrier dynamics in interface two-dimensional electron gases
Ahana Bhattacharya, Andri Darmawan, Jeong Woo Han +10
A two-dimensional electron gas (2DEG) forms at the interface of complex oxides like (STO) and (LTO), despite each material having a low native conductivity,…
Spin polarization of the two-dimensional electron gas at the EuO/SrTiO interface
Paul Rosenberger, Andri Darmawan, Olena Fedchenko +10
Spin-polarized two-dimensional electron gases (2DEGs) are of particular interest for functional oxide electronics applications. The redox-created 2DEG residing on the strontium tit…