Electronic and Structural Properties of Oxides
Research Guide

A high-mobility electron gas forms at the LaAlO3/SrTiO3 heterointerface, exhibiting enhanced electron mobility due to interface physics in perovskite oxides. Ohtomo and Hwang (2004) observed this in epitaxial films, linking it to two-dimensional electron gases. This phenomenon arises from structural and electronic properties at the oxide interface.

Perovskite-like La0.67Ca0.33MnOx films display a negative isotropic magnetoresistance effect over three orders of magnitude larger than typical giant magnetoresistance. Jin et al. (1994) reported a thousandfold resistivity change in epitaxial films grown on LaAlO3 by pulsed laser deposition. This ties to magnetic effects and electron mobility in oxides.

A grid-based Bader analysis partitions charge density grids into volumes efficiently, scaling linearly with grid points by following steepest ascent paths. Tang et al. (2009) introduced this algorithm in "A grid-based Bader analysis algorithm without lattice bias" for unbiased electronic structure studies. VASPKIT by Wang et al. (2021) facilitates high-throughput VASP analysis of oxide properties.

Pulsed laser deposition grows epitaxial perovskite oxide films like La-Ca-Mn-O on LaAlO3 substrates, enabling magnetoresistive properties. Jin et al. (1994) used this for films showing thousandfold resistivity changes. Atomic layer deposition provides precise control over oxide surfaces, as overviewed by George (2009) in "Atomic Layer Deposition: An Overview".

Surface science of titanium dioxide involves techniques revealing atomic-scale structures and reconstructions. Diebold (2003) reviewed this in "The surface science of titanium dioxide", covering electronic and structural properties. Scanning tunneling microscopy resolves monoatomic steps on oxide surfaces, as shown by Binnig et al. (1982) in "Surface Studies by Scanning Tunneling Microscopy".