Subject
Polymers, nanomaterials, surfaces, composites, crystals, and functional materials.
A laboratory methods study describes a dynamic lock-in system for weak magnetoelectric signals and reports stable background, calibration checks and temperature-linked responses in a CoFe2O4-BaTiO3 composite.
Scientific publication3 min read
A laboratory study of YPtBi/W/CoFeB thin films found that a sizable negative effective spin-orbit-torque response persisted while YPtBi remained predominantly disordered. The authors point to the chemistry of the upper interface, but the proposed mechanism remains untested.
Scientific publication5 min read
A preprint modeling two Na3Bi (100) slabs reports different calculated surface-state connectivity for two atomic terminations. The stoichiometric, charge-compensated structure showed connected Fermi arcs from both surfaces; the non-stoichiometric, charge-uncompensated structure showed a top-surface arc and closed bottom-surface loops.
Scientific publication5 min read
An analytical preprint proposes that a ferroelectric model can develop a two-peaked ground-state density without producing net polarization, with environmental timescales helping determine what may be observable.
Scientific publication5 min read
A response tensor reconstructs modeled SARPES behavior from six polarization states and maps it to reciprocal SARIPES signals in a fixed W(110) geometry.
Scientific publication3 min read
A laboratory imaging study mapped oxygen interstitials inside a Sr2CuO3+δ film and found a site-level association between dopant counts and local copper spacing. The work also resolved interface roughness and dislocations, while its detection threshold leaves some isolated oxygen atoms potentially unseen.
Scientific publication5 min read