Optical investigations of the clathrate α-Eu8Ga16Ge30 View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2005-08-18

AUTHORS

J. Sichelschmidt, V. Voevodin, V. Pacheco, Yu. Grin, F. Steglich, T. Nishi, S. Kimura

ABSTRACT

.We performed measurements of the optical reflectivity in the energy range 0.007–30 eV on the clathrate-VIII type compound α-Eu8Ga16- xGe30 x in order to investigate its electronic band structure. The very low charge carrier concentration as well as ferromagnetic ordering of the divalent Eu ions below 10.5 K characterize the spectra at photon energies below ≃0.4 eV in accordance with the results of band structure calculations. Disorder induced bound states have been identified to affect the optical conductivity at energies between 10 and 100 meV. More... »

PAGES

363-366

Identifiers

URI

http://scigraph.springernature.com/pub.10.1140/epjb/e2005-00265-5

DOI

http://dx.doi.org/10.1140/epjb/e2005-00265-5

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1046827987


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