Spin-dependent tunneling in oxidic heterostructures (B06)

• Subject Area: Experimental Condensed Matter Physics ; Theoretical Condensed Matter Physics
• Term: from 2008 to 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 31047526

We plan to fabricate type-III broken-gap oxidic heterostructures by using pulsed laser deposition. Because of a tunnel coupling between the (energetically higher) p-type valence band of one material and the (energetically lower) s-type conduction band of the other material the existence of a bulk band gap and topologically protected edge states is expected, whose magnetotransport and tunnel resistance will be experimentally investigated. An accompanying theoretical study will take into account the influence of interaction and disorder effects on dissipative edge transport and on possible exciton condensation.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 762: Functionality of Oxide Interfaces
• Applicant Institution: Martin-Luther-Universität Halle-Wittenberg
• Co-Applicant Institution: Universität Leipzig
• Project Heads: Professor Dr. Marius Grundmann; Professorin Dr. Ingrid Mertig, until 12/2015; Professor Dr. Bernd Rosenow