J. Chakhalian

Charge transport and magnetization profile at the interface between a correlated metal and an antiferromagnetic insulator

A combination of spectroscopic probes was used to develop a detailed experimental description of the transport and magnetic properties of superlattices composed of the paramagnetic metal CaRuO

Visualizing nanoscale electronic band alignment at the La 2 / 3 Ca 1 / 3 MnO 3 / Nb : SrTiO 3 interface

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Anomalous charge and negative-charge-transfer insulating state in cuprate chain compound KCuO 2

and the antiferromagnetic insulator CaMnO

Epitaxial growth of (111)-oriented LaAlO

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. The charge carrier density and Ru valence state in the superlattices are not significantly different from those of bulk CaRuO

/LaNiO

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. The small charge transfer across the interface implied by these observations confirms predictions derived from density functional calculations. However, a ferromagnetic polarization due to canted Mn spins penetrates 3-4 unit cells into CaMnO

ultra-thin superlattices

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Build-in Electric Field Induced Mechanical Property Change

, far exceeding the corresponding predictions. The discrepancy may indicate the formation of magnetic polarons at the interface.

Polar compensation in ultrathin films of a perovskite nickelate

Cross-sectional scanning tunnelling microscopy and spectroscopy (XSTM/S) were used to map out the band alignment across the complex oxide interface of La