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Lattice vibrations and electronic transitions in the rare-earth metals: Praseodymium under pressure

  • Praseodymium was investigated by Raman spectroscopy under pressure. A negative pressure shift of the E2g mode is observed in the dhcp phase, which indicates that the initial structural sequence hcp→Sm−type→dhcp→fcc as a whole in the regular lanthanides is associated with a softening of this mode. The pressure response of the phonon modes, observed in the monoclinic and α-uranium phases, where 4fPraseodymium was investigated by Raman spectroscopy under pressure. A negative pressure shift of the E2g mode is observed in the dhcp phase, which indicates that the initial structural sequence hcp→Sm−type→dhcp→fcc as a whole in the regular lanthanides is associated with a softening of this mode. The pressure response of the phonon modes, observed in the monoclinic and α-uranium phases, where 4f bonding becomes important, is characteristic for anisotropic bonding properties.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/3492
Bibliografische Angaben
Title (English):Lattice vibrations and electronic transitions in the rare-earth metals: Praseodymium under pressure
Author:Helmut Olijnyk, Walter A. GroßhansStaff MemberGND, Andrew P. Jephcoat
Year of Publication:2004
Publisher:American Physical Society
Page Number:9
Parent Title (English):Physical Review Letters
Volume:93
Issue:25
DOI:https://doi.org/10.1103/PhysRevLett.93.255505
URL:https://www.researchgate.net/publication/8034610
Language:English
Inhaltliche Informationen
Institutes:Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019)
Institutes:Bibliografie
GND Keyword:Elektronik; Metallgitter; Übertragung
Formale Angaben
Open Access: Open Access 
Licence (German):License LogoUrheberrechtlich geschützt