Mapping of strain and electric fields in GaAs/AlGaAs quantum-well samples by laser-assisted NMR

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dc.contributor.authorSuter, Dieter
dc.contributor.authorLenzmann, Björn
dc.contributor.authorEickhoff, Marcus
dc.contributor.authorHayes, Sophia E.
dc.contributor.authorWieck, Andreas D.
dc.date.accessioned2008-05-30T13:52:30Z
dc.date.available2008-05-30T13:52:30Z
dc.date.issued2003-02-06
dc.description.abstractThe usefulness of semiconductor heterostructures derives from the possibility to engineer their electronic and optical properties to match the requirements of many different applications. Optically detected nuclear magnetic resonance provides the possibility to map microscopic properties of such samples with a high spatial resolution through the splitting of resonance lines. In a multiple quantum-well sample, we measure the distortion of the crystal lattice and find variations of the order of 10^(-5) over distances of a few mm. Internal electric fields also cause resonance line splittings. Comparing the electric field-induced resonance line splittings in different quantum wells, we mapped the vertical variation of the electric field from a Schottky contact with a spatial resolution of some 40 nm.en
dc.identifier.citationEickhoff, Marcus; Lenzmann, Björn; Suter, Dieter; Hayes, Sophia E.; Wieck, Andreas D.: Mapping of strain and electric fields in GaAs/AlGaAs quantum-well samples by laser-assisted NMR. In: Physical Reviews B Jg. 67(2003), 085308[5 S.].de
dc.identifier.doi10.1103/PhysRevB.67.085308
dc.identifier.urihttp://hdl.handle.net/2003/25367
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3217
dc.identifier.urlhttp://dx.doi.org/10.1103/PhysRevB.67.085308
dc.language.isoende
dc.publisherThe American Physical Societyen
dc.rights©2003 The American Physical Societyen
dc.subject.ddc530
dc.titleMapping of strain and electric fields in GaAs/AlGaAs quantum-well samples by laser-assisted NMRen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted
eldorado.identifier.urlhttp://e3.physik.tu-dortmund.de/~suter/eprints/Strain_mapping.pdf

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