DOI: 10.1088/0022-3719/15/31/009. The low-temperature variation of the elastic constants of lithium hydride and lithium deuteride

The low-temperature variation of the elastic constants of lithium hydride and lithium deuteride

10.1088/0022-3719/15/31/009

Crossref journal-article

IOP Publishing

Journal of Physics C: Solid State Physics (266)

Abstract

The adiabatic elastic constants C11, C12and C44of7LiH and7LiD have been obtained from measurements of ultrasonic wave transit times through single crystals over the range 4.2-300K. The temperature variation follows quite closely the approximation Cij(T)=Cij(0)(1-D epsilon ). The anisotropy factor A=C44/(C11-C12) and the deviation ( Delta =C12-C44) from the Cauchy relation have been used to make comparisons with the alkali halides. It has been found that the Gruneisen parameter gamma is approximately constant at 1.2 for both7LiH and7LiD from 50 to 270K. There are signs of anomalous behaviour of the elastic constants in the region of 11K, where a lambda -type heat capacity anomaly has been reported.

Bibliography

B W James, & H Kheyrandish. (1982). The low-temperature variation of the elastic constants of lithium hydride and lithium deuteride. Journal of Physics C: Solid State Physics, 15(31), 6321â6337.

Authors 2

B W James (first)
H Kheyrandish (additional)

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Dates

Type	When
Created	23 years ago (July 26, 2002, 5:51 p.m.)
Deposited	2 years, 3 months ago (April 22, 2023, 10:45 p.m.)
Indexed	3 weeks ago (July 31, 2025, 11:45 p.m.)
Issued	42 years, 9 months ago (Nov. 10, 1982)
Published	42 years, 9 months ago (Nov. 10, 1982)
Published Print	42 years, 9 months ago (Nov. 10, 1982)

Funders 0

None

BibTeX

@article{B_W_James_1982, title={The low-temperature variation of the elastic constants of lithium hydride and lithium deuteride}, volume={15}, ISSN={0022-3719}, url={http://dx.doi.org/10.1088/0022-3719/15/31/009}, DOI={10.1088/0022-3719/15/31/009}, number={31}, journal={Journal of Physics C: Solid State Physics}, publisher={IOP Publishing}, author={B W James and H Kheyrandish}, year={1982}, month=nov, pages={6321–6337} }

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