Abstract
Quantum crystals are crystals with large zero-point motions, caused by a light mass and a weak interaction of the lattice particles. Among these are the solid phases of the quantum liquids 4He and 3He, molecular hydrogen, and solid neon. The existence of large zero-point motions can cause striking effects, e.g., the existence of a sizable nuclear exchange interaction in 3He or a wavelike propagation of vacancies or isotopic impurities.
Partially supported by U.S. Atomic Energy Commission at Brookhaven National Laboratory, Summer 1972.
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© 1974 Plenum Press, New York
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Horner, H. (1974). Quantum Crystals: Theory of the Phonon Spectrum. In: Timmerhaus, K.D., O’Sullivan, W.J., Hammel, E.F. (eds) Low Temperature Physics-LT 13. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4520-6_1
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DOI: https://doi.org/10.1007/978-1-4613-4520-6_1
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