001     188604
005     20210129215223.0
037 _ _ |a FZJ-2015-01946
041 _ _ |a English
100 1 _ |a Schäpers, Thomas
|0 P:(DE-Juel1)128634
|b 0
|e Corresponding Author
|u fzj
111 2 _ |a Colloquium at IBM Research Laboratory, Rüschlikon
|c Rüschlikon
|d 2015-01-19
|w Switzerland
245 _ _ |a Ballistic and phase-coherent transport in In As-based nanowires
260 _ _ |c 2015
336 7 _ |a Talk (non-conference)
|b talk
|m talk
|0 PUB:(DE-HGF)31
|s 1427383123_14663
|2 PUB:(DE-HGF)
|x Invited
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a Other
|2 DINI
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a LECTURE_SPEECH
|2 ORCID
520 _ _ |a Semiconductor nanowires, fabricated by a bottom-up approach, are very promising as buildingblocks for future nanoscaled electronic devices. In addition, they are also very interesting objectsfor studying fundamental quantum phenomena. On InAs nanowires controlled by a set of top-gateelectrodes ballistic transport was investigated. By varying the gate voltage distinct conductancesteps due to quantized conductance were observed. By means of bias-dependent measurementsat various magnetic fields the g-factor was extracted. In a set-up with two constrictions in seriesit could be shown that the total conductance is solely determined by the element with the lowerresistance. We furthermore investigated GaAs/InAs core/shell nanowires, where the highlyconductive InAs shell is wrapped around an insulating GaAs core nanowire. These nanowireswere grown by molecular beam epitaxy. At low temperatures pronounced flux periodic (h/e)magnetoconductance oscillations are observed, when the magnetic field is oriented along thenanowires axis. These very regular oscillations are explained by the formation of closed-loopquantum states in the tube-like InAs shell comprising a flux periodic energy spectrum. Themagnetoconductance oscillations are even observed at temperatures as high as 50K.
536 _ _ |a 522 - Controlling Spin-Based Phenomena (POF3-522)
|0 G:(DE-HGF)POF3-522
|c POF3-522
|x 0
|f POF III
773 _ _ |y 2015
909 C O |o oai:juser.fz-juelich.de:188604
|p VDB
910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)128634
913 0 _ |a DE-HGF
|b Schlüsseltechnologien
|l Grundlagen für zukünftige Informationstechnologien
|1 G:(DE-HGF)POF2-420
|0 G:(DE-HGF)POF2-422
|2 G:(DE-HGF)POF2-400
|v Spin-based and quantum information
|x 0
913 1 _ |a DE-HGF
|b Key Technologies
|l Future Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)
|1 G:(DE-HGF)POF3-520
|0 G:(DE-HGF)POF3-522
|2 G:(DE-HGF)POF3-500
|v Controlling Spin-Based Phenomena
|x 0
|4 G:(DE-HGF)POF
|3 G:(DE-HGF)POF3
914 1 _ |y 2015
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)PGI-9-20110106
|k PGI-9
|l Halbleiter-Nanoelektronik
|x 0
980 _ _ |a talk
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)PGI-9-20110106
980 _ _ |a UNRESTRICTED


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