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

Godwal, B. K. ; Petruska, E. A. ; Speziale, S. ; Yan, J. ; Clark, S. M. ; Kruger, M. B. ; Jeanloz, R. (2009) High-pressure Raman and x-ray diffraction studies on LaB6 Physical Review B, 80 (17). 172104_1-172104_4. ISSN 0163-1829

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Official URL: http://prb.aps.org/abstract/PRB/v80/i17/e172104

Related URL: http://dx.doi.org/10.1103/PhysRevB.80.172104


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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Source:Copyright of this article belongs to American Physical Society.
ID Code:11619
Deposited On:13 Nov 2010 14:09
Last Modified:02 Jun 2011 08:36

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