Magnetic-barrier-induced conductance fluctuations in quantum wires

Quasiballistic semiconductor quantum wires are exposed to localized perpendicular magnetic fields, also known as magnetic barriers. Pronounced, reproducible conductance fluctuations as a function of the magnetic barrier amplitude are observed. The fluctuations are strongly temperature dependent and remain visible up to temperatures of approximate to 10 K. Simulations based on recursive Greens functions suggest that the conductance fluctuations originate from parametric interferences of the electronic wave functions, which experience scattering between the magnetic barrier and the electrostatic potential landscape.

Xu, HengyiUniversity of Dusseldorf (author)
Tarasov, AUniversity of Dusseldorf (author)
Cerchez, MUniversity of Dusseldorf (author)
Heinzel, TUniversity of Dusseldorf (author)
Zozoulenko, IgorLinköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan(Swepub:liu)igozo50 (author)
Reuter, DRuhr University Bochum (author)
Wieck, A DRuhr University Bochum (author)
University of DusseldorfInstitutionen för teknik och naturvetenskap (creator_code:org_t)

In:Physical Review B. Condensed Matter and Materials Physics78:16, s. 165307-1098-01211550-235X

By the author/editor: Hugger, S; Xu, Hengyi; Tarasov, A; Cerchez, M; Heinzel, T; Zozoulenko, Igor; show more...; Reuter, D; Wieck, A D; show less...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.