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Journal Article

Sodium under pressure: bcc to fcc structural transition and pressure-volume relation to 100 GPa

MPS-Authors
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Loa,  I.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280575

Syassen,  K.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;
Department Solid State Quantum Electronics (Jochen Mannhart), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Hanfland, M., Loa, I., & Syassen, K. (2002). Sodium under pressure: bcc to fcc structural transition and pressure-volume relation to 100 GPa. Physical Review B, 65(18): 184109.


Cite as: https://hdl.handle.net/21.11116/0000-000E-E485-A
Abstract
The pressure-volume relation of sodium is measured up to 100
GPa using high-resolution angle-dispersive synchrotron x-ray
diffraction. At a pressure of 65(1) GPa Na is found to undergo
a structural phase transition from a body-centered to a face-
centered-cubic modification. Total-energy calculations of Na
under pressure are performed using the full-potential
linearized augmented plane-wave method. The calculated
pressure-volume relations and the bcc-fcc transition pressure
are compared to the experimental results.