000862633 001__ 862633
000862633 005__ 20210130001513.0
000862633 037__ $$aFZJ-2019-02895
000862633 041__ $$aEnglish
000862633 1001_ $$0P:(DE-Juel1)128634$$aSchäpers, Thomas$$b0$$eCorresponding author
000862633 1112_ $$aSymposium on Quantum and Nanoelectronic Devices$$cLund$$d2019-04-29 - 2019-04-29$$wSweden
000862633 245__ $$aPhase-coherent transport in topological insulator nanoribbon-based structures$$f2019-04-29 - 
000862633 260__ $$c2019
000862633 3367_ $$033$$2EndNote$$aConference Paper
000862633 3367_ $$2DataCite$$aOther
000862633 3367_ $$2BibTeX$$aINPROCEEDINGS
000862633 3367_ $$2ORCID$$aLECTURE_SPEECH
000862633 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1557378528_25693$$xInvited
000862633 3367_ $$2DINI$$aOther
000862633 520__ $$aThree-dimensional topological insulators have been subject of increased interest in the past few years due to their robust topologically protected surface states enclosing an insulating bulk. Especially the spin-momentum locking of these surface states makes this novel material class very attractive for spintronic applications. However, often the transport in the surface states is masked by a pronounced bulk conductance contribution owing to a relatively large background doping. By preparing topological insulator nanoribbons a more favorable surface-to-volume ratio can be achieved. In addition, these nanostructures allow to study confinement related carrier transport. Our topological insulator Bi2Te3 and Sb2Te3-based nanostructures were fabricated by selective-area molecular beam epitaxy using a SiO2/Si3N4-masked Si (111) substrate. We performed low temperature magnetotransport measurements on the nanoribbons, in order to investigate phase-coherent phenomena. Furthermore, nanoribbons were covered in-situ with superconducting electrodes to form topological Josephson junctions. Here, a clear Josephson supercurrent was observed. Measurements under microwave irradiation revealed a series of Shapiro steps. The observed missing of the first step indicates the presence of Majorana states.
000862633 536__ $$0G:(DE-HGF)POF3-522$$a522 - Controlling Spin-Based Phenomena (POF3-522)$$cPOF3-522$$fPOF III$$x0
000862633 65027 $$0V:(DE-MLZ)SciArea-120$$2V:(DE-HGF)$$aCondensed Matter Physics$$x0
000862633 65017 $$0V:(DE-MLZ)GC-120-2016$$2V:(DE-HGF)$$aInformation and Communication$$x0
000862633 909CO $$ooai:juser.fz-juelich.de:862633$$pVDB
000862633 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128634$$aForschungszentrum Jülich$$b0$$kFZJ
000862633 9131_ $$0G:(DE-HGF)POF3-522$$1G:(DE-HGF)POF3-520$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Spin-Based Phenomena$$x0
000862633 9141_ $$y2019
000862633 920__ $$lyes
000862633 9201_ $$0I:(DE-Juel1)PGI-9-20110106$$kPGI-9$$lHalbleiter-Nanoelektronik$$x0
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000862633 980__ $$aVDB
000862633 980__ $$aI:(DE-Juel1)PGI-9-20110106
000862633 980__ $$aUNRESTRICTED