Abstract
Own recent Monte Carlo calculations have been improved and extended. A three dimensionalCuMn spin glass with 3 at % Mn has been simulated. 6.912 lattice points and 207 classical Heisenberg spins with\(M_{sat} = 870_{\mu _B } \) have been employed. Only RKKY and dipole interaction are introduced. For both interactions experimentally measured values of coupling strengths at 18 discrete near neighbour sites have been used. The distribution of hyperfine fieldsH L at host nuclei sites and the distribution of exchange fieldsH j for Mn spins have been calculated. Anisotropy fields of a field cooled sample have been evaluated beingH a=1.0 kOe (H c=2.5 kOe);H a=0.7 kOe (H c=5.5 kOe) andH a=0.5 kOe (H c=7.5 kOe). Two complete hysteresis cycles of two different statistical alloys were calculated showing both a sharp magnetization step one atH d=−0.36 kOe and the other atH d=−0.19 kOe. The details of spin orientation during a hysteresis cycle have been viewed. For small external fields the calculations are in favour of Allouls one domain model. The magnetization step occurs within the system of single spins. The magnetization of clusters remains constant during the whole hysteresis cycle. The calculations of the NMR enhancement factor\(\tilde \eta (H_0 )\) are in general agreement with experiment.
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References
Alloul, H.: Phys. Rev. Lett.42, 603 (1979)
Alloul, H.: J. Appl. Phys.50, 7330 (1979)
Schlosser, Ch., Brömer, H.: Magn. Magn. Mater.28, 209 (1982)
Schlosser, Ch., Brömer, H.: Z. Phys. B — Condensed Matter50, 247 (1983)
Schlosser, Ch., Brömer, H.: J. Magn. Magn. Mater.45, 175 (1984)
Morgan-Pond, C.G.: Phys. Rev. Lett.51, 490 (1983)
Dasgupta, C., Yao, K.-L.: Phys. Rev. B29, 4071 (1984)
Soukoulis, C.M., Grest, G.S., Levin, K.: Phys. Rev. B28, 1510 (1983)
Applications of the Monte Carlo Method. Topics in Current Physics. Binder, K. (ed.), Vol. 36. Berlin, Heidelberg, New York: Springer 1984
Kinzel, W., Binder, K.: Phys. Rev. B24, 2701 (1981)
Binder, K., Nauenberg, M., Privman, V., Young, A.P.: Phys. Rev. B31, 1498 (1985)
Ogielski, A.T., Morgenstern, I.: Phys. Rev. Lett.54, 928 (1985)
Bhatt, R.N., Young, A.P.: Phys. Rev. Lett.54, 924 (1985)
Dunlop, M.W., Sherrington, D.: Solid State Phys.18, 1465 (1985)
Walker, L.R., Walstedt, R.E.: Phys. Rev. Lett.47, 1624 (1981)
Walker, L.R., Walstedt, R.E.: J. Magn. Magn. Mater.31–34, 1289 (1983)
Cohen, J.D., Slichter, C.P.: Phys. Rev. Lett.40, 129 (1978)
Smith, F.W.: Phys. Rev. B14, 241 (1976)
Malmström, G., Geldart, D.J.W., Blomberg, C.: J. Phys. F6, 1953 (1976)
Alloul, H., Hippert, F.: J. Magn. Magn. Mater.31–34, 1321 (1983)
Schulze, U.: Dissertation TU Braunschweig (1980)
Felten, G.: Dissertation TU Braunschweig (1984)
Knitter, R.W., Kouvel, J.S., Claus, H.: J. Magn. Magn. Mater.5, 356 (1977)
Felten, G., Schwink, Ch.: Solid State Commun.49, 233 (1984)
Monod, P., Prejean, J.J., Tissier, B.: J. Appl. Phys.50, 7324 (1979)
Retat, L., Schwink, Ch.: J. Magn. Magn. Mater.38, 123 (1983)
Hippert, F., Alloul, H., Prejean, J.J.: Physica107B, 645 (1981)
Monod, P., Berthier, Y.: J. Magn. Magn. Mater.15–18, 149 (1980)
Prejean, J.J., Joliclerc, M.J., Monod, P.: J. Phys. (Paris)41, 427 (1980)
Schlosser, Ch., Brömer, H.: Hyperfine Interact.15/16, 669 (1983)
Morgownik, A.F.J., Mydosh, J.A.: Solid State Commun.47, 321 (1983)
Morgownik, A.F.J., Mydosh, J.A.: Solid State Commun.47, 325 (1983)
Larsen, U.: J. Phys. F: Met. Phys.15, 101 (1985)
Alloul, H., Mendels, P.: Phys. Rev. Lett.54, 1313 (1985)
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Tempelmann, C., Brömer, H.: Europhysics Conference Abstracts 9A, PWc-6-117 (1985)
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Tempelmann, C., Brömer, H. Monte Carlo simulations concerning zero field host NMR in aCuMn spin glass. Z. Physik B - Condensed Matter 62, 463–471 (1986). https://doi.org/10.1007/BF01303578
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DOI: https://doi.org/10.1007/BF01303578