Critical Sound Attenuation and Spin-Lattice Relaxation |
| A. Pawlak Institute of Physics, A. Mickiewicz University, Matejki 48/49, 60-769 Poznań, Poland |
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| The nonasymptotic critical properties of sound propagation are studied in compressible magnetic system. The role of coupling of order parameter and acoustic phonons to spin-energy density is investigated and the ultrasonic attenuation scaling function is found. |
| DOI: 10.12693/APhysPolA.85.385 PACS numbers: 05.70.Jk, 62.65.+k |