Photoemission spectroscopy study of si-ZnMgHo quasicrystals
2008 (English)In: Optical materials (Amsterdam), ISSN 0925-3467, Vol. 30, no 5, 690-692 p.Article in journal (Refereed) Published
The results of photoemission spectroscopy of the simple-icosahedral single-grain ZnMgHo quasicrystals are presented. Synchrotron radiation photoemission measurements were performed on in situ cleaved samples at 10(-10) mbar pressure and low, 160 K, temperature. The valence band photoemission spectra measured reveal a simple metal type valence band with a distinct Fermi edge and a sharp pseudogap feature, which originates from the van Hove singularities in the density of states. The photoemission spectra of the Mg 2p core level show the coordination shifts of Mg 2p, spin-orbit doublet due to inequivalent Mg sites in the quasicrystalline lattice.
Place, publisher, year, edition, pages
2008. Vol. 30, no 5, 690-692 p.
quasicrystals, pseudogap, photoemission spectroscopy
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-38348DOI: 10.1016/j.optmat.2007.02.011ISI: 000252554800007ScopusID: 2-s2.0-37249014459OAI: oai:DiVA.org:kth-38348DiVA: diva2:436964
International Workshop on Advanced Spectroscopy and Optical Materials Location: Inst Expt Phys, Univ Gdansk, Gdansk, POLAND Date: JUN 11-14, 2006 2011-08-252011-08-252011-08-25Bibliographically approved