Hot electron transport in a strongly correlated transition metal oxide

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 La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ (LSMO)- Nb-doped SrTiO${}_3$ (Nb:STO) interface and find the characteristic hot-electron attenuation length in LSMO to be 1.48 $\pm$ 0.10 unit cells (u.c.) at -1.9 V, increasing to 2.02 $\pm$ 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.

arXiv comment15 pages, 4 figures

References in corpus (7)

• Hot Carrier-Assisted Intrinsic Photoresponse in Graphene
• Electronic measurement and control of spin transport in Silicon
• Measurement of the Spin-Transfer-Torque Vector in Magnetic Tunnel Junctions
• Termination Control of the Interface Dipole in La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$/Nb:SrTiO${}_3$ (001) Schottky Junctions
• Spin injection and perpendicular spin transport in graphite nanostructures
• Polaron formation in the optimally doped ferromagnetic manganites La0.7Ba0.3MnO3 and La0.7Ba0.3MnO3
• Comparison of hot-electron transmission in ferromagnetic Ni on epitaxial and polycrystalline Schottky interfaces

Cited by in corpus (5)

• Probing electron transport across a LSMO/Nb:STO heterointerface at the nanoscale
• Interface control of electronic transport across the magnetic phase transition in SrRuO_3/SrTiO_3 heterointerface
• Probing hot electron transport across an epitaxial Schottky interface of SrRuO3/Nb:SrTiO3
• Temperature dependence of the magnetization of La${}_{0.67}$Sr${}_{0.33}$MnO${}_3$ thin films on LaAlO${}_3$
• Hot electron attenuation of direct and scattered carriers across an epitaxial Schottky interface