Effect of tension on R lines in ruby crystals shocked along crystal c axis
- 1 August 1994
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 76 (3) , 1784-1788
- https://doi.org/10.1063/1.357696
Abstract
An experimental method has been developed to measure the wavelength shift of R lines in ruby samples subjected to well‐defined, large tensile stresses. Plate impact experiments, conducted at 77 K, were used to produce uniaxial strain tension along the crystal c axis. Longitudinal stresses ranged from 105 kbar in tension to 110 kbar in compression. Both R lines remained sharp and showed a reversible, nonlinear blueshift in tension; the R1‐R2 splitting increases with increasing tension. The observed data are in excellent agreement with predictions using crystal field theory [Sharma and Gupta, Phys. Rev. B 43, 879 (1991)]. The present results also permit an examination of the tensile response of sapphire at these large stresses.This publication has 19 references indexed in Scilit:
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