Magnetic Field Effect on Sound Propagation in Antiferromagnets

• Authors: A. Pawlak , B. Fechner
• Languages of publication: EN

Abstracts

EN

On the basis of the theory of phase transitions, a model describing anomalies of sound attenuation coefficient close to the antiferromagnet-paramagnet phase transition in magnetic field was developed. The scaling behaviour of the sound velocity and attenuation coefficient was determined. The physical origin of the two-peak structure in the field dependent ultrasound attenuation observed in a number of antiferromagnets was identified. The theoretical results were compared with experimental results obtained for terbium.

Keywords

EN

05.70.Jk; 62.65.+k

Discipline

• 62.65.+k: Acoustical properties of solids
• 05.70.Jk: Critical point phenomena(for quantum critical phenomena in superconductivity, see 74.40.Kb)

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 232-234

Dates

published

2009-01

Contributors

author

A. Pawlak

• Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

B. Fechner

• Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

References

• 1. A. Pawlak, Phys. Status Solidi C 3, 204 (2006)
• 2. A. Pawlak, B. Fechner, Phys. Status Solidi C 3, 208 (2006)
• 3. G. Gulpinar, Phys. Lett. A 372, 98 (2008)
• 4. R.K Zheng, C.F. Zhu, X.G. Li, Phys. Status Solidi A 184, 251 (2001)
• 5. O. Chiatti, A. Sytcheva, J. Wosnitza, S. Zherlitsyn, A.A. Zvyagin, V.S. Zapf, M. Jaime, A. Paduan-Filho, Phys. Rev. B 78, 094406 (2008)
• 6. J.M. Kincaid, E.G.D. Cohen, Phys. Rep. 22, 57 (1975)
• 7. A. Pawlak, Eur. Phys. J. B 4, 179 (1998)
• 8. A. Pawlak, Sound Propagation near the Magnetic Phase Transition, Wydawnictwo Naukowe UAM, Poznań 2004 (in Polish)
• 9. A. Pawlak, Phys. Status Solidi B 236, 474 (2003)
• 10. J.M. Kosterlitz, D.R. Nelson, M.E. Fisher, Phys. Rev. B 13, 412 (1976)
• 11. D.R. Nelson, M.E. Fisher, Phys. Rev. B 11, 1030 (1976)
• 12. T. Komatsubara, A. Ishizaki, S. Kusaka, E. Hirahara, Solid State Commun. 14, 741 (1974)
• 13. L.D. Landau, I.M. Khalatnikov, Dokl. Akad. Nauk SSSR 96, 469 (1954); reprinted in Collected Papers of L.D. Landau, Ed. D. ter Haar, Pergamon, London 1965
• 14. B. Lűthi, Physical Acoustics in the Solid State, Springer, Berlin 2005
• 15. S. Maekawa, R.A. Treder, M. Tachiki, M.C. Lee, M. Levy, Phys. Rev. B 13, 1284 (1976)
• 16. S. Kusaka, K. Yamamoto, T. Komatsubara, Y. Ishikawa, Solid State Commun. 20, 925 (1976)
• 17. M. Tachiki, S. Maekawa, Prog. Theor. Phys. 51, 1 (1974)
• 18. J. Sznajd, Acta Phys. Pol. A 40, 637 (1971)

Identifiers

DOI

10.12693/APhysPolA.115.232