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  Magnetotransport through two dimensional electron gas in a tubular geometry

Shaji, N., Qin, H., Blick, R. H., Klein, L. J., Deneke, C., & Schmidt, O. G. (2007). Magnetotransport through two dimensional electron gas in a tubular geometry. Applied Physics Letters, 90(4): 042101.

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 Creators:
Shaji, N., Author
Qin, H., Author
Blick, R. H.1, Author           
Klein, L. J., Author
Deneke, C.1, 2, Author           
Schmidt, O. G.1, 2, 3, 4, Author           
Affiliations:
1Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370504              
2Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370501              
3Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370481              
4Scientific Facility Nanostructuring Lab (Jürgen Weis), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370499              

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 Abstract: The authors report on topology dependent electron transport in tubular shaped two dimensional electron gas. These micron sized tubes are realized in strained InGaAs quantum wells as a first step towards investigating geometric potentials in low dimensional quantum systems. They investigate the topology induced change in magnetoresistance of the electronic system in a perpendicular magnetic field. At low magnetic field, an increased zero field magnetoresistance followed by a negative magnetoresistance is observed. They ascribe this effect to an increase in electron scattering along the curved regions. At high magnetic fields they observe a linear increase in resistance of the curved region as compared to planar regions. (c) 2007 American Institute of Physics.

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Language(s): eng - English
 Dates: 2007
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 338483
ISI: 000243789600038
 Degree: -

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Title: Applied Physics Letters
Source Genre: Journal
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Pages: - Volume / Issue: 90 (4) Sequence Number: 042101 Start / End Page: - Identifier: ISSN: 0003-6951