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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Rana KG,Yajima T,Parui S,Kemper AF,Devereaux TP,Hikita Y,Hwang HY,Banerjee Tdoi
10.1038/srep01274subject
Has Abstractpub_date
2013-01-01 00:00:00pages
1274issn
2045-2322pii
srep01274journal_volume
3pub_type
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