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Scanning tunnelling spectroscopy characterization of ZnO single crystals

dc.contributor.authorUrbieta Quiroga, Ana Irene
dc.contributor.authorFernández Sánchez, Paloma
dc.contributor.authorPiqueras De Noriega, Francisco Javier
dc.contributor.authorSekiguchi, T.
dc.date.accessioned2023-06-20T19:01:29Z
dc.date.available2023-06-20T19:01:29Z
dc.date.issued2001-07
dc.description© 2001 IOP Publishing Ltd. This work was supported by MCYT –DGI (ProjectMAT2000-2119). Thanks are due to Professor N Sakagami (Akita National College of Technology, Japan) and Professor S Miyashita (Toyama Medical and Pharmaceutical University, Japan) for their contribution to crystal preparation.
dc.description.abstractBulk ZnO single crystals grown by the hydrothermal and flux methods have been characterized by scanning tunnelling spectroscopy performed in the different crystalline faces. Normalized differential conductance has been found to depend on the face considered. Polar O-terminated surfaces show an intrinsic conduction behaviour and surface bandgap in the range 0.4-0.8 eV, which depends on the position probed. The Zn polar surfaces show mainly n-type conduction. The non-polar m regions present either intrinsic or p-type behaviour. The differences observed are attributed to the nature of impurities and defects appearing in the polar and non-polar surfaces during crystal growth.
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMCYT–DGI
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/26303
dc.identifier.doi10.1088/0268-1242/16/7/311
dc.identifier.issn0268-1242
dc.identifier.officialurlhttp://dx.doi.org/10.1088/0268-1242/16/7/311
dc.identifier.relatedurlhttp://iopscience.iop.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/59124
dc.issue.number7
dc.journal.titleSemiconductor Science and Technology
dc.language.isoeng
dc.page.final593
dc.page.initial589
dc.publisherIOP Publishing Ltd
dc.relation.projectIDMAT2000-2119
dc.rights.accessRightsrestricted access
dc.subject.cdu538.9
dc.subject.keywordTunneling Spectroscopy
dc.subject.keywordZinc-Oxide
dc.subject.keywordElectronic-Structure
dc.subject.keywordSi(111)2x1 Surface
dc.subject.keywordMicroscopy
dc.subject.keywordCeramics
dc.subject.ucmFísica de materiales
dc.titleScanning tunnelling spectroscopy characterization of ZnO single crystals
dc.typejournal article
dc.volume.number16
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