Photoemission study of MnBi and GdNi2Ge2

dc.contributor.advisor David W. Lynch
dc.contributor.author Brammeier, Derek
dc.contributor.department Physics and Astronomy
dc.date 2018-08-25T03:47:52.000
dc.date.accessioned 2020-07-02T05:44:25Z
dc.date.available 2020-07-02T05:44:25Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2001
dc.date.issued 2001-01-01
dc.description.abstract <p>Photoelectron spectroscopy was performed on single crystals of MnBi and GdNi2Ge2 utilizing synchrotron radiation as the light source. MnBi is known for its large magneto-optical Kerr rotation and GdNi 2Ge2 is studied for its intriguing magnetic properties at low temperature, including a spin density wave (SDW) that is reported to occur at 27.1 K. Angle resolved photoemission was used to investigate the electronic band structures of both materials. Resonant photoemission was used to characterize valence band features. The shallow core levels were also investigated using angle integrated photoemission. Results from MnBi measurements are compared with recent theoretical bandstructure and density of states calculations. GdNi2Ge2 results are compared to the theoretical band structure calculations. They support theoretical handling of the Gd-4f levels as being part of the atomic core. The search for the SDW was inconclusive.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/476/
dc.identifier.articleid 1475
dc.identifier.contextkey 6073823
dc.identifier.doi https://doi.org/10.31274/rtd-180813-12108
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/476
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/77429
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/476/r_3016690.pdf|||Sat Jan 15 00:26:01 UTC 2022
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Optics
dc.subject.keywords Physics and astronomy
dc.subject.keywords Condensed matter physics
dc.title Photoemission study of MnBi and GdNi2Ge2
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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