000153753 001__ 153753
000153753 005__ 20210129213801.0
000153753 037__ $$aFZJ-2014-03242
000153753 041__ $$aEnglish
000153753 1001_ $$0P:(DE-Juel1)128634$$aSchäpers, Thomas$$b0$$eCorresponding Author$$ufzj
000153753 1112_ $$wIceland
000153753 245__ $$aQuantum Transport in Core/Shell Nanowires$$f2014-05-16
000153753 260__ $$c2014
000153753 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1403097750_30218$$xInvited
000153753 3367_ $$033$$2EndNote$$aConference Paper
000153753 3367_ $$2DataCite$$aOther
000153753 3367_ $$2DINI$$aOther
000153753 3367_ $$2BibTeX$$aINPROCEEDINGS
000153753 3367_ $$2ORCID$$aLECTURE_SPEECH
000153753 502__ $$cReykjavik University
000153753 520__ $$aSemiconductor nanowires, fabricated by a bottom-up  approach,  are very promising as building blocks for future nanoscaled electronic devices. In addition, they are also very interesting objects for studying quantum phenomena. In recent years, the focus shifted partly towards more complex nanowire structures, i.e. radial and axial heterostructure nanowires, in order to tailor their electronic properties even better. We investigated GaAs/InAs core/shell nanowires, where the highly conductive InAs shell is wrapped around an insulating GaAs core. At low temperatures  pronounced flux periodic magnetoconductance oscillations are observed. These very regular oscillations can be explained by the presence of circular closed-loop quantum states. The magnetoconductance oscillations could even be observed up to temperatures of 50K. By selective wet chemical etching, the GaAs core was removed, leaving a hollow InAs nanowire. Here, flux-periodic oscillations where observed as well. When the GaAs/InAs core/shell nanowire is contacted by two superconducting electrodes the carrier transport is governed by Andreev reflection. In this case the period in the magnetoconductance corresponds to half a flux quantum.
000153753 536__ $$0G:(DE-HGF)POF2-422$$a422 - Spin-based and quantum information (POF2-422)$$cPOF2-422$$fPOF II$$x0
000153753 773__ $$y2014
000153753 909CO $$ooai:juser.fz-juelich.de:153753$$pVDB
000153753 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128634$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
000153753 9132_ $$0G:(DE-HGF)POF3-522$$1G:(DE-HGF)POF3-520$$2G:(DE-HGF)POF3-500$$aDE-HGF$$bKey Technologies$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Spin-Based Phenomena$$x0
000153753 9131_ $$0G:(DE-HGF)POF2-422$$1G:(DE-HGF)POF2-420$$2G:(DE-HGF)POF2-400$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bSchlüsseltechnologien$$lGrundlagen zukünftiger Informationstechnologien$$vSpin-based and quantum information$$x0
000153753 9141_ $$y2014
000153753 920__ $$lyes
000153753 9201_ $$0I:(DE-Juel1)PGI-9-20110106$$kPGI-9$$lHalbleiter-Nanoelektronik$$x0
000153753 980__ $$atalk
000153753 980__ $$aVDB
000153753 980__ $$aI:(DE-Juel1)PGI-9-20110106
000153753 980__ $$aUNRESTRICTED