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Giant intrinsic magnetic hardness

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Abstract

Crystallographically partly randomized materials with high magnetic anisotropy exhibit anisotropy and exchange fluctuations. Possibly the most dramatic consequence of these interaction fluctuations is the presence of giant intrinsic magnetic hardness observed, especially at cryogenic temperatures. This magnetic hardness (resistance to demagnetization) is anintrinsic solid state property, quite in contrast with hardness in technologically important materials based on the presence of fine particles or precipitate phases. It introduces rather a further variety in the phenomenology of interaction fluctuation materials such as spin glasses, representing the extreme case of high anisotropy and high moment concentrations. In this paper the phenomenon of strong intrinsic magnetic hardness is reviewed, and some new experimental data are presented for homogeneous pseudobinary regions of composition on the basis of such compounds as SmNi5, SmCu5, SmCo5, TbFe2 and others. Magnetic hardness in some of these cases reaches the highest values found so far for any class of materials. For instance, maximum values of coercive force of aboutH c=230 kOe are observed for SmCo5−xNix. Even higher values are extrapolated in other cases. Maximum values ofH c are observed in materials with ordering temperatures of order 60–200 K. A strong temperature and a weaker time dependence ofH c is observed and discussed on the basis of theories involving thermal activation of domain propagation. Comparisons are drawn with effects generally observed in magnetically hard materials, and the relationship of intrinsic magnetic hardness to technologically interesting materials is discussed. Tentative conclusions as to the details of the origins of giant intrinsic magnetic hardness are drawn and areas of future interest are indicated.

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References

  1. H. Oesterreicher: Magn. Lett.1, 51 (1976)

    Google Scholar 

  2. H. Oesterreicher, F. Parker, M. Misroch: Proc. Intl. Conf. Magnetism, Amsterdam, Physica86–88 B, 1475 (1977)

    Google Scholar 

  3. S. Foner, H. M. McNiff, H. Oesterreicher, F. T. Parker, M. Misroch: Conf. Proc. Magn. Magn. Mat., Minneapolis (1977); J. Appl. Phys. (1978)

  4. H. Oesterreicher F. Parker, M. Misroch: Magn. Lett.1, 32 (1976)

    Google Scholar 

  5. G. T. Trammell: Phys. Rev.131, 932 (1963)

    Article  ADS  Google Scholar 

  6. B. Barbara, C. Becle, R. Lemaire, D. Paccard: J. Phys. (Suppl. 2–3) Cl 299 (1971)

    Google Scholar 

  7. H. Oesterreicher: J. Phys. Chem. Solids32, 1403 (1971)

    Article  Google Scholar 

  8. H. Oesterreicher: Phys. Stat. Sol.7, K55 (1971)

    Article  Google Scholar 

  9. H. Oesterreicher: J. Appl. Phys.42, 5137 (1971)

    Article  ADS  Google Scholar 

  10. A. E. Clark: Appl. Phys. Lett.23, 642 (1973)

    Article  Google Scholar 

  11. H. Oesterreicher. J. Phys. F (Metal Phys.)5, 1607 (1975)

    Article  ADS  Google Scholar 

  12. H. F. Brown:Micromagnetics (John Wiley and Sons, London, New York 1969), pp. 66–73; Ann. N.Y. Acad. Sci.147, 461 (1969)

    Google Scholar 

  13. H. Zijlstra: IEEE Trans. Mag.6, 179 (1970)

    Article  Google Scholar 

  14. E. C. Stoner, E. P. Wohlfarth: Phil. Trans. Roy. Soc. London A240, 559 (1948)

    ADS  Google Scholar 

  15. R. W. Dubois, C. P. Bean: J. Appl. Phys.30, 225 (1959)

    Google Scholar 

  16. A. Aharoni: Phys. Stat. Sol.16, 3 (1966)

    Google Scholar 

  17. A. J. Lapworth, J. P. Jakubovics, G. S. Baker: J. Phys C1, 259 (1971)

    Google Scholar 

  18. H. Zijlstra, H. B. Haanstra: J. Appl. Phys.37, 2853 (1966)

    Article  ADS  Google Scholar 

  19. H. Zijlstra: IEEE Trans. MAG6, 179 (1970)

    Article  Google Scholar 

  20. J. J. Becker: J. Appl. Phys.39, 1270 (1968)

    Article  ADS  Google Scholar 

  21. H. Zijlstra: J. Appl. Phys.41, 4881 (1970)

    Article  ADS  Google Scholar 

  22. H. Zijlstra: J. Phys. (Suppl. 2–3) C1, 1039 (1971)

    Google Scholar 

  23. H. Zijlstra: Conf. Digest No. 3, Rare Earths and Actinides, Durham (1971) pp 158

    Google Scholar 

  24. H. Zijlstra: J. Appl. Phys.42, 1510 (1971)

    Article  ADS  Google Scholar 

  25. J. J. Becker: J. Appl. Phys.42, 1537 (1971)

    Article  ADS  Google Scholar 

  26. J. J. Becker: IEEE Trans. MAG7, 644 (1971)

    Article  Google Scholar 

  27. J. J. Becker: IEEE Trans. MAG5, 211 (1969)

    Article  Google Scholar 

  28. J. J. Becker: AIP Conf. Proc., San Francisco (1974)

  29. J. D. Livingston: AIP Conf. Proc., San Francisco (1972) p. 643

  30. C. Kittel, J. K. Galt: InSolid State Physics, ed. by H. Ehrenreich, F. Seitz, D. Turnbull (Academic Press, New York 1956) Vol. 3, pp. 437

    Google Scholar 

  31. H. Van den Broek, H. Zijlstra: IEEE Trans. Mag.7, 226 (1971)

    Article  Google Scholar 

  32. T. Egami, C. D. Graham: J. Appl. Phys.42, 1299 (1971)

    Article  ADS  Google Scholar 

  33. T. Egami: Phys. Stat. Sol. A19, 747 (1973)

    Article  Google Scholar 

  34. T. Egami: Phys. Stat Sol. B75, 211 (1973)

    Google Scholar 

  35. C. W. Searle, W. G. D. Frederick, H. J. Garrett: AIP Conf. Proc., 18th Annual Conf. Magnetism, Denver (1972)

  36. H. Oesterreicher: J. Phys. Chem. Solids34, 1267 (1973)

    Article  Google Scholar 

  37. H. Oesterreicher: Proc. Intl. Conf. Magnetism. Grenoble (1970) J. Phys. (Suppl. 2–3) C 1, 1141 (1971)

    Google Scholar 

  38. H. Oesterreicher: Solid State Comm.10, 525 (1972)

    Article  Google Scholar 

  39. H. Oesterreicher, L. M. Corliss, J. M. Hastings: J. Appl. Phys.41, 2326 (1970)

    Article  ADS  Google Scholar 

  40. H. Oesterreicher: J. Appl. Phys.44, 2350 (1973)

    Article  ADS  Google Scholar 

  41. H. Oesterreicher, R. Pitts: J. Appl. Phys.43, 5174 (1972)

    Article  ADS  Google Scholar 

  42. R. Grössinger, W. Steiner: Phys. Stat. Sol.28, K135 (1975)

    Article  Google Scholar 

  43. R. Grössinger, W. Steiner, K. Krec: J. Mag. Mat.2, 196 (1976)

    Article  ADS  Google Scholar 

  44. H. Oesterreicher, R. Pitts: J. Appl. Phys.44, 5570 (1973)

    Article  ADS  Google Scholar 

  45. H. Oesterreicher, D. McNeely: J. Less Comm. Metals53, 245 (1977)

    Article  Google Scholar 

  46. D. McNeely, H. Oesterreicher: J. Less Comm. Metals44, 183 (1975)

    Article  Google Scholar 

  47. K. H. J. Buschow, M. Brouha, A. G. Rijnbeck: Solid State Comm.15, 31 (1975)

    Article  Google Scholar 

  48. H. Oesterreicher, F. Parker, M. Misroch: Solid State Comm.19, 539 (1976)

    Article  Google Scholar 

  49. K. H. J. Buschow, M. Brouha: J. Appl. Phys.47, 1653 (1976)

    Article  ADS  Google Scholar 

  50. K. H. J. Buschow, M. Brouha, J. B. A. A. Elemans: Phys. Stat. Sol.30, 177 (1975)

    Article  Google Scholar 

  51. J. B. A. A. Elemans, K. H. J. Buschow: Phys. Stat. Sol.34, 355 (1976)

    Article  Google Scholar 

  52. H. Oesterreicher: Solid State Comm14, 571 (1974)

    Article  Google Scholar 

  53. H. Oesterreicher: Phys. Stat. Sol.26, K117 (1975)

    Article  Google Scholar 

  54. A. S. Ermolenko, A. V. Korolev: JETP Lett.21, 15 (1975)

    ADS  Google Scholar 

  55. F. T. Parker, M. Misroch, H. Oesterreicher: Mat. Res. Bull.10, 1075 (1975)

    Article  Google Scholar 

  56. H. Oesterreicher, F. T. Parker, M. Misroch: Proc. Intermag. Conf., Los Angeles (1977), IEEE Trans Mag.,13, 1333 (1977)

    Article  Google Scholar 

  57. D. H. Livingston, H. Oesterreicher, F. T. Parker: (unpublished)

  58. H. Oesterreicher, F. T. Parker, M. Misroch: (unpublished)

  59. H. Oesterreicher, F. T. Parker, M. Misroch: Conf. Proc. Magn. Magn. Mat., Minneapolis (1977); J. Appl. Phys. (1978)

  60. H. Oestereicher, D. McNeely: J. Less Comm. Metals45, 111 (1975)

    Article  Google Scholar 

  61. H. Oesterreicher: Phys. Stat. Sol.32 K 127 (1975)

    Article  Google Scholar 

  62. H. Oesterreicher: Proc. Intl. Conf. Magnetism, Moscow, (1973); Tr. Mezdunar. Konf. Magn.1, 217 (1974)

    Google Scholar 

  63. J. J. Rhyne, J. H. Schelleng, N. C. Koon: Phys. Rev. B10, 4672 (1974)

    Article  ADS  Google Scholar 

  64. H. A. Alperin, J. R. Cullen, A. E. Clark: AIP Conf. Proc.29, 186 (1975)

    Google Scholar 

  65. S. J. Pickart, J. J. Rhyne, H. A. Alperin: AIP Conf. Proc.24, 117 (1975)

    Google Scholar 

  66. H. A. Alperin: personal communication

  67. D. Gignoux, R. Lemaire: Solid State Comm.14, 877 (1974)

    Article  Google Scholar 

  68. D. Melville, K. N. R. Taylor: Institute of Physics Conference Digest, Rare Earths and Actinides, Durham (1971), p. 150

  69. C. A. Poldy, K. N. R. Taylor: Institute of Physics Conference Digest, Rare Earths and Actinides, Durham (1971) p. 156

  70. B. Barbara, G. Fillion, D. Gignoux R. Lemaire: Solid State Comm.10, 1149 (1972)

    Article  Google Scholar 

  71. J. Hunter, K. N. R. Taylor: Physica86–88 B, 101 (1977)

    Google Scholar 

  72. B. Barbara, M. Uehara: Physica86–88 B 1481 (1977)

    Google Scholar 

  73. B. Barbara, Y. Berthier: Physica86–88 B, 1385 (1977)

    Google Scholar 

  74. J. E. Greedan, V. U. S. Rao: J. Solid State Chem.6, 387 (1973)

    Article  ADS  Google Scholar 

  75. S. G. Sankar, V. U. S. Rao, E. Segal, W. E. Wallace, W. G. D. Frederick, H. J. Garrett: Phys. Rev.11, 435 (1975)

    Article  ADS  Google Scholar 

  76. K. H. J. Buschow, A. M. van Diepen, H. W. de Wijn: Solid State Comm.15, 903 (1974)

    Article  Google Scholar 

  77. J. K. Yakinthos, P. J. Rentzeperis: Phys. Stat. Sol64, 643 (1974)

    Google Scholar 

  78. J. Rossat-Mignod, J. Yakinthos: Phys. Stat. Sol.47, 239 (1971)

    Google Scholar 

  79. H. Oesterreicher, F. T. Parker: Magn. Lett. (in print)

  80. H. Oesterreicher, F. T. Parker, M. Misroch: Phys. Rev., submitted.

  81. D. J. Craik, E. W. Hill, A. J. Harrison: IEEE Trans. Mag.11, 1379 (1975)

    Article  Google Scholar 

  82. H. Oesterreicher: Proc. Intl. Conf. Magnetism, Amsterdam, Physica86–88 B, 99 (1977)

    Google Scholar 

  83. B. Barbara, J. Deportes D. Givord, R. Lemaire: Proc. World Electrotechnical Congress, Moscow (1977)

  84. W. E. Wallace:Rare Earth Intermetallics Academic Press, New York (1971)

    Google Scholar 

  85. K. N. R. Taylor, M. I. Darby: InPhysics of Rare Earth Solids (Chapman Hall 1972)

  86. R. Rothwarf, H. A. Leupold, J. Greedan, W. E. Wallace, D. K. Das: Intl J. Magnetism4, 267 (1973)

    Google Scholar 

  87. K. S. V. L. Narasimhan W. E. Wallace:, AIP Conf. Proc.18, 1248 (1974)

    Google Scholar 

  88. K. S. V. L. Narasimhan, W. E. Wallace, R. D. Hutchens: IEE Trans. Mag10, 729 (1974)

    Article  Google Scholar 

  89. H. F. Mildrum M. S. Hartings, K. J Strnat, J. G. Tront: AIP Conf. Proc.10, 618 (1972)

    Google Scholar 

  90. K. H. J. Buschow: J. Less Comm. Metals33, 311 (1973)

    Article  Google Scholar 

  91. P. J. Gaunt: J. Appl. Phys.43, 637 (1972)

    Article  ADS  Google Scholar 

  92. P. J. Gaunt, E. J. Roy: Philosoph. Mag.34, 781 (1976)

    Google Scholar 

  93. S. Chikazumi:Physics of Magnetism (John Wiley, New York 1966) p. 313

    Google Scholar 

  94. A. S. Ermolenko, A. V. Korolyov, A. F. Rozhda: Fiz. Metallov. i. Metalloved.42, 518 (1976)

    Google Scholar 

  95. A. C. Ermolenko, A. F. Rozda: Fiz. Jetallov. i. Metalloved.43, 312 (1977)

    Google Scholar 

  96. A. S. Ermolenko, A. V. Korolyov, A. F. Rozhda: Proc. Intermag., Los Angeles (1977)

  97. H. Oesterreicher: Magn. Lett. (in print)

  98. P. A. Beck: J. Less Comm. Metals28, 193 (1972)

    Article  MathSciNet  Google Scholar 

  99. E. Callen, Y. J. Liu, J. R. Cullen: Phys. Rev.16 263 (1977)

    ADS  Google Scholar 

  100. E. Callen, Y. J. Liu, J. R. Cullen: Phys. Rev.16, 263 (1977)

    ADS  Google Scholar 

  101. H. Oesterreicher: J. Less Comm. Metals55, 199 (1977)

    Article  Google Scholar 

  102. H. Oesterreicher, D. McNeely: AIP Conf. Proc.18, 678 (1974)

    Google Scholar 

  103. H. Oesterreicher, F. T. Parker, M. Misroch: Appl. Phys.12, 287 (1977)

    Article  ADS  Google Scholar 

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  1. Department of Chemistry, University of California, San Diego, 92093, La Jolla, Ca, USA

    H. Oesterreicher

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This study was supported by a grant from the National Science Foundation.

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Oesterreicher, H. Giant intrinsic magnetic hardness. Appl. Phys. 15, 341–354 (1978). https://doi.org/10.1007/BF00886151

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