X-ray-absorption fine-structure study of the B1-to-B2 phase transition in RbCl

Journal Article · Wed Apr 01 04:00:00 EST 1998 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.57.8034· OSTI ID:3366

Haskel, D ^[1]; Ingalls, R; Kelly, S; Ravel, B; Wang, F

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1. Physics Department, Box 351560, University of Washington

Pressure-induced changes in the local structure about Rb atoms in RbCl are investigated by means of x-ray-absorption fine-structure spectroscopy. Rb K-edge data were taken in fine steps across the pressure-induced NaCl-structure (B1)-to-CsCl-structure(B2)transition at 0.55 GPa. Previous diffraction studies of this phase transition indicate several martensiticlike properties, including the coexistence of both phases at 0.49 GPa. Our results are consistent with this coexistence of phases at the transition. In addition, we find no evidence for and intermediate phase.

• Research Organization: University of Washington, Seattle, WA
• Sponsoring Organization: USDOE Office of Energy Research (ER)
• DOE Contract Number: FG03-97ER45622
• OSTI ID: 3366
• Report Number(s): DOE/ER/45622-6
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 13 Vol. 57; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
FINE STRUCTURE
PHASE TRANSFORMATIONS
RUBIDIUM CHLORIDES
X-RAY SPECTROSCOPY