Abstract
We will discuss some aspects of the motion of atoms by way of tunneling between two or more equivalent potential wells in a crystal. This motion should not be confused with ordinary diffusion, because the energies involved are much smaller, of the order 10−4–10−2 eV. Tunneling of atoms is of interest because the spectrum of elementary excitations associated therewith may span both the microwave range and the thermal range, i.e., tunneling frequencies are in the range 1010–1012 Hz. Examples of systems where atomic tunneling occurs are dilute solutions of light ions in ionic crystals, e.g., Li:KC1, KC1:OH, and KH2PO4. We will discuss atomic tunneling in connection with optical, thermal, and inelastic effects and the symmetry of defects.
Based on work supported by the United States Atomic Energy Commission under Contract AT-(30-1)-3699, Technical Report NYO-3699-22.
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Krumhansl, J.A. (1969). Atomic Tunneling in Solids. In: Burstein, E., Lundqvist, S. (eds) Tunneling Phenomena in Solids. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1752-4_35
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DOI: https://doi.org/10.1007/978-1-4684-1752-4_35
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