---

Prog. Theor. Phys. Vol. 66 No. 2 (1981) pp. 437-453

Anomalous Relaxation in One-Dimensional Magnets. II

— Satellite Structure of EPR Line Shape —

Hisao Okamoto, Takashi Karasudani, Katsuhiko Nagano and Hazime Mori

Department of Physics, Kyushu University, Fukuoka 812

(Received February 14, 1981)

Abstract:

Anomalies of the angle-dependent ESR line shape due to the long-time t^{-1/ 2} tail in one-dimensional Heisenberg paramagnets are treated in the high-temperature limit by making use of a new mode-coupling theory of spin relaxation presented in the previous paper by the present authors. A systematic continued-fraction representation of the time-correlation spectra is derived by taking account of all higher-order couplings to the spin-diffusion process. Since the continued fraction converges rapidly, the spectral functions of the ESR line shape can be computed numerically. Thus the line shape, the line width and the frequency shift of the main resonance line (ω₀-line), and the line shape and the line width of the first-order (2 ω₀-line) and the second-order (3 ω₀-line) satellites are calculated and compared with experiments.

URL : http://ptp.ipap.jp/link?PTP/66/437/
DOI : 10.1143/PTP.66.437

[ Full Text PDF : FREE ACCESS (614K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

---

References:

1. H. Okamoto, K. Nagano, T. Karasudani and H. Mori, Prog. Theor. Phys. 66 (1981), 53[PTP].
2. H. Mori and H. Okamoto, Prog. Theor. Phys. 40 (1968), 1287[PTP].
3. A. Lagendijk and D. Schoemaker, Phys. Rev. B 16 (1977), 47[APS].
4. A. Lagendijk, Phys. Rev. B 18 (1978), 1322, [APS]and references cited therein.
5. A. Lagendijk, J. Phys. Soc. Jpn. 46 (1979), 784[JPSJ].
6. I. Yamada, private communication.
7. M. Steiner, J. Villain and C. G. Windsor, Adv. Phys. 25 (1976), 87.
8. H. Mori, Prog. Theor. Phys. 33 (1965), 423[PTP]; ibid. 34 (1965), 399[PTP].
9. H. Mori and K. Kawasaki, Prog. Theor. Phys. 27 (1962), 529[PTP].
   T. Morita, Phys. Rev. B 6 (1972), 3385[APS].
   T. Horiguchi and T. Morita, Phys. Rev. B 7 (1973), 1949[APS]; ibid. 8 (1973), 414[APS].
10. I. Yamada and T. Nishizaki, Phys. Lett. A 63 (1977), 345[CrossRef].
11. Y. Natsume, F. Sasagawa, M. Yoyoda and I. Yamada, J. Phys. Soc. Jpn. 46 (1979); ibid. 48 (1980), 50[JPSJ].
12. K. Nagata, I. Yamada, T. Komatsubara and T. Nishizaki, J. Phys. Soc. Jpn. 43 (1977), 707[JPSJ].
13. T. Komatsubara and K. Nagata, J. Phys. Soc. Jpn. 45 (1978), 826[JPSJ].
14. R. Kubo and K. Tomita, J. Phys. Soc. Jpn. 9 (1954), 888[JPSJ].
15. R. E. Dietz, F. R. Merritt, R. Dingle, D. Hone, B. G. Silbernagel and P. M. Richards, Phys. Rev. Lett. 26 (1971), 1186[APS].
16. P. M. Richards, Magnetic Resonance in One- and Two-Dimensional Systems, in Proc. Int. School of Phys. “Enrico Fermi” LIX, ed. K. A. Müller and A. Rigamonti (North-Holland, Amsterdam, 1976), and references cited therein.
17. D. Forster, Hydrodynamic Fluctuations, Broken Symmetry, and Correlation Functions (Benjamin, 1975).
    S. W. Lovesey, Condensed Matter Physics (Benjamin, 1980).
18. G. F. Reiter and J. P. Boucher, Phys. Rev. B 11 (1975), 1823[APS].
19. M. Hamashima and Y. Ajiro, J. Phys. Soc. Jpn. 44 (1978), 1743[JPSJ].
20. K. Nagata and K. Okuda, J. Phys. Soc. Jpn. 46 (1979), 1726[JPSJ].
21. Y. Yokozawa and M. Tanimoto, J. Phys. Soc. Jpn. 44 (1978), 1741[JPSJ].
22. T. Komatsubara, K. Iio and K. Nagata, J. Phys. Soc. Jpn. 45 (1978), 351[JPSJ].
23. I. Yamada and Y. Natsume, J. Phys. Soc. Jpn. 48 (1980), 58[JPSJ].

---

[PTP HOME] [BROWSE] [SEARCH] [SUBSCRIPTION] [SUBMISSION] [REGISTRATION]

Copyright © Progress of Theoretical Physics 2013 All rights reserved.