✦ LIBER ✦

On the thermal expansion of solids

✍ Scribed by Yasushi Takahashi

Publisher: Elsevier Science
Year: 1958
Weight: 444 KB
Volume: 24
Category: Article
ISSN: 0031-8914
DOI: 10.1016/s0031-8914(58)80103-2

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✦ Synopsis

It is pointed out that the thermal expansion coefficient of solids is not always zero even in ideally harmonic crystals, if one quantizes the phonon field. This apparently differs from the customary treatment which is essentially based on non-quantized phonon field model. Our discussion which starts with a quantized phonon model, is of course compatible with the phenomenological treatment by Born-Huang and Slater. This fact would clarify the source of the factor 1/3 in Slater's Griineisen constant pointed out by Dugdale-MacDonald.

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