AI Article Synopsis
- Oxide heterointerfaces are studied to understand electron transport and strong correlation effects in oxide-electronics.
- Using hot-electron probing, researchers measured the attenuation length of electrons in LSMO at different voltages, finding it to be 1.48 ± 0.10 unit cells at -1.9 V and increasing to 2.02 ± 0.16 unit cells at -1.3 V.
- The analysis indicates that electron-electron interactions and polaron scattering play significant roles, with distinct transmission characteristics observed at terraces versus step-edges in the material.
Article Abstract
Oxide heterointerfaces are ideal for investigating strong correlation effects to electron transport, relevant for oxide-electronics. Using hot-electrons, we probe electron transport perpendicular to the La₀.₇Sr₀.₃MnO₃ (LSMO)- Nb-doped SrTiO₃ (Nb:STO) interface and find the characteristic hot-electron attenuation length in LSMO to be 1.48 ± 0.10 unit cells (u.c.) at -1.9 V, increasing to 2.02 ± 0.16 u.c. at -1.3 V at room temperature. Theoretical analysis of this energy dispersion reveals the dominance of electron-electron and polaron scattering. Direct visualization of the local electron transport shows different transmission at the terraces and at the step-edges.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3572443 | PMC |
| http://dx.doi.org/10.1038/srep01274 | DOI Listing |
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