44 citations · 86 across the 11 of their papers we have counts for
10 papers · 1 filter
Advancing Atom Probe Tomography of SrTiO: Measurement Methodology and Impurity Detection Limits
J. E. Rybak, J. Arlt, B. Gault +1
Strontium titanate (STO) possesses promising properties for applications in thermoelectricity, catalysis, fuel cells, and more, but its performance is highly dependent on stoichiom…
Nanoscale friction controlled by top layer thickness in [LaMnO]/[SrMnO] superlattices
Niklas A. Weber, Miru Lee, Florian Schönewald +4
We conducted lateral force microscopy measurements on seven [LaMnO]/[SrMnO] superlattices with varied layer thicknesses. We observe that the friction forces…
Noncontact friction: Role of phonon damping and its nonuniversality
Miru Lee, Richard L. C. Vink, Cynthia A. Volkert +1
While obtaining theoretical predictions for dissipation during sliding motion is a difficult task, one regime that allows for analytical results is the so-called noncontact regime,…
Friction on incommensurate substrates: Role of anharmonicity and defects
S. Amiri, C. A. Volkert, R. L. C. Vink
We present Molecular Dynamics simulations of one- and two-dimensional bead-spring models sliding on incommensurate substrates. We investigate how sliding friction is affected by in…
Polaronic Contributions to Friction in a Manganite Thin Film
Niklas A. Weber, Hendrik Schmidt, Tim Sievert +6
Despite the huge importance of friction in regulating movement in all natural and technological processes, the mechanisms underlying dissipation at a sliding contact are still a ma…
A criticial view on e occupancy as a descriptor for oxygen evolution catalytic activity in LiMnO nanoparticles
Florian Schönewald, Marco Eckhoff, Max Baumung +4
We investigate the effect of the surface electronic structure and composition of LiMnO nanoparticles on the electrocatalytic oxygen evolution reaction (OER). Scanning trans…
Closing the gap between theory and experiment for lithium manganese oxide spinels using a high-dimensional neural network potential
Marco Eckhoff, Florian Schönewald, Marcel Risch +3
Many positive electrode materials in lithium ion batteries include transition metals which are difficult to describe by electronic structure methods like density functional theory…
Switching friction at a manganite surface using electric fields
H. Schmidt, J. -O. Krisponeit, N. Weber +2
We report active control of the friction force at the contact between a nanoscale asperity and a LaCaMnO (LCMO) thin film using electric fields. We use fricti…
Tracking the diffusion-controlled lithiation reaction of LiMn2O4 by in-situ TEM
Torben Erichsen, Björn Pfeiffer, Vladimir Roddatis +1
Spinel lithium manganese oxide (LixMn2O4) is used as an active material in battery cathodes. It is a relatively inexpensive and environmentally friendly material, but suffers from…
Controlling friction in a manganite surface by resistive switching
Hendrik Schmidt, Jon-Olaf Krisponeit, Konrad Samwer +1
We report a significant change in friction of a thin film measured as a function of the materials resistive state under ultrahigh vacuum conditions at…