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Prog. Theor. Phys. Vol. 29 No. 4 (1963) pp. 528-549

[ Full Text PDF : FREE ACCESS (1363K) ]

Green's Function Theory of Magnetic Relaxation. I

— General Formulation —

Kazuhisa Tomita and Motoyuki Tanaka

Department of Physics, Faculty of Science, University of Kyoto, Kyoto

(Received November 28, 1962)

Abstract:

It is shown that the method of two-time Green's function may be used as a systematic way of investigating the behaviour of relaxation in magnetic materials. A stochastic assumption has been introduced to terminate the chain of higher order Green's functions. As a result the macroscopic parameter of relaxation in a localized spin assembly is expressed by the interaction constant and the spatial correlation of spin deviations at a single time in an equilibrium assembly. The temperature dependence of the latter quantity may also be calculated by the same method. Only the general formulation is presented in part I, and examples will be given in subsequent publications on the width of resonance in ferro- and antiferromagnetic substances.


URL : http://ptp.ipap.jp/link?PTP/29/528/
DOI : 10.1143/PTP.29.528

[ Full Text PDF : FREE ACCESS (1363K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 29 No. 5 (1963) pp. 651-674 :
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  2. Progress of Theoretical Physics Vol. 29 No. 6 (1963) pp. 817-828 :
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  3. Progress of Theoretical Physics Vol. 30 No. 5 (1963) pp. 729-730 :
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  4. Progress of Theoretical Physics Vol. 31 No. 2 (1964) pp. 177-196 :
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  5. Progress of Theoretical Physics Vol. 32 No. 1 (1964) pp. 50-64 :
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  6. Progress of Theoretical Physics Vol. 33 No. 1 (1965) pp. 1-21 :
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  7. Progress of Theoretical Physics Vol. 34 No. 3 (1965) pp. 357-371 :
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  8. Progress of Theoretical Physics Vol. 34 No. 3 (1965) pp. 399-416 :
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  9. Progress of Theoretical Physics Vol. 34 No. 5 (1965) pp. 705-725 :
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  10. Progress of Theoretical Physics Vol. 39 No. 2 (1968) pp. 331-348 :
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  11. Progress of Theoretical Physics Vol. 41 No. 2 (1969) pp. 322-338 :
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  12. Progress of Theoretical Physics Vol. 41 No. 3 (1969) pp. 590-603 :
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  13. Progress of Theoretical Physics Vol. 42 No. 2 (1969) pp. 174-195 :
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  14. Progress of Theoretical Physics Vol. 44 No. 5 (1970) pp. 1173-1191 :
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  15. Progress of Theoretical Physics Vol. 45 No. 1 (1971) pp. 1-24 :
    Critical Magnetic Relaxation
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  16. Progress of Theoretical Physics Vol. 48 No. 6 (1972) pp. 1815-1827 :
    A Green-Function Theory of an Anisotropic Ferromagnet
    Motoyuki Tanaka and Yoshiro Kondo
  17. Progress of Theoretical Physics Vol. 49 No. 1 (1973) pp. 355-356 :
    Tomita-Tanaka Approximation in the Ising Limit
    L. A. Murray and B. Frank
  18. Progress of Theoretical Physics Vol. 49 No. 2 (1973) pp. 453-459 :
    A Formalism for Ising Model Cumulant Green Functions
    B. Frank and L. A. Murray
  19. Progress of Theoretical Physics Vol. 49 No. 3 (1973) pp. 714-730 :
    Role of Anisotropy in Spin Dynamics
    Tatuo Kawasaki
  20. Progress of Theoretical Physics Vol. 50 No. 4 (1973) pp. 1422-1424 :
    Magnetic Properties of Uniaxial Ferromagnets
    Motoyuki Tanaka, Hidemi Kitaguchi and Yoshiro Kondo
  21. Progress of Theoretical Physics Vol. 51 No. 4 (1974) pp. 1019-1029 :
    Theory of Line Shape in Nuclear Magnetic Resonance
    Yutaka Doi and Shigeyuki Aono
  22. Progress of Theoretical Physics Vol. 58 No. 2 (1977) pp. 452-466 :
    Longitudinal Correlation Function for an Anisotropic Ferromagnet
    Yoshiro Kondo and Motoyuki Tanaka

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