Summary from the dissertation of the author, Jena 1967.
- Autor(in)
- Referenz
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10 Hartwick, C. P., J. J. Green, R. I. Joseph and E. Schlömann, J. Appl. Phys. 36 (1965) 1265.
11 Joseph, R. I., and E. Schlömann, J. Appl. Phys. 38 (1967) 1915.
12 Gottlieb, P., and H. Suhl, J. Appl. Phys. 33 (1962) 1508.
13 Klupsch, Th., and W. Haubenreisser, Z. angew. Phys. 18 (1964) 230.
14 Kadanoff, L. P., and G. Baym, "Quantum Statistical Mechanics", New York 1962.
15 Tyablikov, S. V., Ukrain. Mat. Zhur. 11 (1959) 287.
16 Men-Syan-Chen, Fiz. Tverd. Tela 4 (1962) 705.
17 Haubenreisser, W., Phys. Lett. 6 (1963) 43.
18 Schlömann, E., and R. I. Joseph, J. Appl. Phys. 32 (1961) 1006.
19 Holstein, T., and H. Primakoff, Phys. Rev. 58 (1940) 1098.
1 Klupsch, Th., Dissertation Jena 1967.
20 Joseph, R. I., E. Schlömann and R. M. White, J. Appl. Phys. 34 (1963) 2686.
21 Mathon, J., Diploma Work, Prague 1963 (unpublished).
2 Schlömann, E., J. J. Green and U. Milano, J. Appl. Phys. 31 (1960) 386. S
3 Morgenthaler, F. R., J. Appl. Phys. 31 (1960) 95. S.
4 Haas, C. W., and H. B. Callen in Magnetism Vol. I, ed. by G. T. Rado and H. Suhl, New York 1963.
5 Keffer, F., in Handbuch der Physik, Vol. XVIII, 2, Berlin-Göttingen-Heidelberg 1966.
6 Haubenreisser, W., Z. angew. Phys. 18 (1965) 432.
7 Voigt. F., D. Linzen and M. Manzel, Monatsber. Akad. Wiss. Berlin 6 (1964) 566.
8 Manzel, M., Dissertation Leipzig 1966.
9 Schlömann, E., Izv. Akad. Nauk SSSR, ser. fiz. 28 (1964) 454.
- Seitenbereich
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0231 - 0243
- Zusammenfsg.
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The method of causal GREEN'S functions is used to derive equations and boundary conditions of non-equilibrium correlation functions which describe spin wave like elementary excitations in a HEISENBERG ferromagnet with dipolar coupling influenced by a r. f. magnetic field parallel to the d.c. field. Starting with a matrix of four GREEN'S functions each containing two PAULI operators, by means of its functional equation a perturbation calculation is developed to get the mass operator in terms of and averaged single PAULI operators; the most important contributions are the RPA renormalization and the three magnon collision parts. Equations and boundary conditions of correlation functions are derived in a different manner as usually known. Detailed discussions regarding the transformation from the local into a modified spin wave representation as well as the symmetry properties of the correlation functions and their equations are given.
- Artikel-Typen
- Forschungsartikel