Third-Sound Propagation in a Thue-Morse Lattice

抄録

Transmission spectra of third sound were measured in the Thue-Morse lattice. The structure of the experimental spectrum confirmed some of the theoretical predictions. The spectrum was compared with that for the periodic lattice and for the Fibonacci lattice. The present result supported the idea that the Thue-Morse lattice was more random than the quasi-periodic lattice, although both were generated by the automatic rules. The experimental method was described in some detail.