High-pressure Raman and x-ray diffraction studies on LaB6

B. K. Godwal; E. A. Petruska; S. Speziale; J. Yan; S. M. Clark; M. B. Kruger; R. Jeanloz

doi:10.1103/PhysRevB.80.172104

High-pressure Raman and x-ray diffraction studies on LaB6

B. K. Godwal, E. A. Petruska, S. Speziale, J. Yan, S. M. Clark, M. B. Kruger, R. Jeanloz

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

X-ray diffraction measurements and Raman spectroscopy at room temperature document the equation of state and the frequency shifts for Eg, T2g, and A1g vibrational modes of polycrystalline LaB6 under pressure. The data exhibit smooth pressure dependencies, yielding a zero-pressure isothermal bulk modulus K0T =164 (±2) GPa in good accord with independent ultrasonic measurements, and show no evidence of structural or electronic phase transitions up to at least 25 GPa.

Original language	English
Article number	172104
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	80
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.80.172104
Publication status	Published - 19 Nov 2009
Externally published	Yes

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10.1103/PhysRevB.80.172104

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AU - Clark, S. M.

AU - Kruger, M. B.

AU - Jeanloz, R.

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AB - X-ray diffraction measurements and Raman spectroscopy at room temperature document the equation of state and the frequency shifts for Eg, T2g, and A1g vibrational modes of polycrystalline LaB6 under pressure. The data exhibit smooth pressure dependencies, yielding a zero-pressure isothermal bulk modulus K0T =164 (±2) GPa in good accord with independent ultrasonic measurements, and show no evidence of structural or electronic phase transitions up to at least 25 GPa.

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High-pressure Raman and x-ray diffraction studies on LaB6

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