Complex transition metal oxides have played a central role in the study of magnetic
materials, serving as model systems for explorations of fundamental exchange interactions …

The effects of strain and oxygen vacancies on perovskite thin films have been studied in
great detail over the past decades and have been treated separately from each other. While …

The origin of ferromagnetism in strained epitaxial LaCoO 3 films has been a long-standing
mystery. Here, we combine atomically resolved Z-contrast imaging, electron-energy-loss …

It is well known that the properties of a crystal evolve as it increases in size from a single
atomic plane to that of the bulk. Such size‐dependent transitions can stem from many …

Certain cobalt oxides are known to exhibit ordered Co spin states, as determined from
macroscopic techniques. Here we report real-space atomic-resolution imaging of Co spin …

Using spin density functional theory with the Hubbard correction, we investigate the
magnetic structure of strained LaCoO 3. We show that beyond biaxial tensile strain of 2.5 …

Nanoelectronics is changing the way the world communicates, and is transforming our daily
lives. Continuing Moore's law and miniaturization of low-power semiconductor chips with …

With local density approximation+ Hubbard U (LDA+ U) calculations, we show that the
ferromagnetic (FM) insulating state observed in tensile-strained LaCoO 3 epitaxial thin films …

Mechanisms by which lattice strain alters the oxygen reduction reaction (ORR) kinetics are
important to understand in order to increase the ORR activity of solid oxide fuel cell …

We have investigated the Co-3 d spin-orbital state in a thin film of perovskite LaCoO 3 to
clarify the origin of strain induced spontaneous magnetization (TC= 94 K) by means of x-ray …