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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents



  history
ID: 306079.0, MPI für Festkörperforschung / FKF Publikationen 2006
Composite incommensurate K-III and a commensurate form: Study of a high-pressure phase of potassium
Authors:McMahon, M. I.; Nelmes, R. J.; Schwarz, U.; Syassen, K.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physical Review B
Volume:74
Issue / Number:14
Sequence Number of Article:140102
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:K-III, the high-pressure phase of potassium stable above 20 GPa, is
reported to have a host-guest composite structure comprising the same
16-atom host structure as Rb-IV and a C-face-centered, rather than a
body-centered, tetragonal, guest structure. At 22.0(2) GPa, the
incommensurate ratio of the host and guest c-axis lattice parameters
passes through the commensurate value of 8/5 but, within the
experimental resolution of approximately 1 GPa, no lock-in to a
commensurate structure is observed.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Univ Edinburgh, SUPA, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
; Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
Identifiers:ISI:000241723400002 [ID No:1]
ISSN:1098-0121 [ID No:2]
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