✦ LIBER ✦
114. Lattice vibrations in alkali halides at liquid helium temperatures from experimental studies on elastic constants, specific heats, and nuclear magnetic resonance
✍ Scribed by C.F. Squire; C.V. Briscoe; M.H. N; W.W. Scales; F.J. Low
- Publisher
- Elsevier Science
- Year
- 1958
- Weight
- 69 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0031-8914
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✦ Synopsis
Kg, has been deduced. In the liquid helium range Kg is of the form A T 2 and is presumably limited by the scattering of the lattice vibrations by the free electrons. The value of A was unchanged for the first few percent of zinc which was added, but it decreased rapidly after further addition of zinc. This decrease is interpreted in terms of the increasing density of states at the Fermi surface as the Brillouin zone is gradually filled with the extra electrons from the zinc.