Startseite Technik Micromagnetism of advanced hard magnetic materials
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

Micromagnetism of advanced hard magnetic materials

  • Helmut Kronmüller und Dagmar Goll
Veröffentlicht/Copyright: 11. Juni 2013
Veröffentlichen auch Sie bei De Gruyter Brill

Abstract

The continuum theory of micromagnetism has been found to be a rather effective tool to describe magnetic states and magnetization processes. In this paper some rigorous micromagnetic results obtained for characteristic magnetic properties of nanocrystalline hard magnetic materials will be outlined and their application to the development of outstanding magnetic materials will be discussed. In particular the role of exchange coupled composite systems will be considered and the effects of the microstructure will be investigated. Furthermore, the deteriorating effects of magnetically softened surface regions, the depinning and pinning of domain walls at phase boundaries, the remanence exchange enhancing effects and the depinning fields of domain walls of composite particles in the case of high-density recording systems will be discussed.


* Correspondence address, Professor Dr. Helmut Kronmüller Max-Planck-Institut für Metallforschung Heisenbergstr. 3, D-70569 Stuttgart, Germany Tel.: +49 711 689 1910 Fax: +49 711 689 1912 E-mail:

References

[1] W.Gilbert: De Magnete 1600, transl. by Gilbert Club, London (1900) (rev. ed.Basic Books, New York (1958)).Suche in Google Scholar

[2] R.Descartes: Principiae Philosophiae, Part IV (1644).Suche in Google Scholar

[3] E.Kneller: Ferromagnetismus, Springer-Verlag, Berlin-Göttingen-Heidelberg (1962).10.1007/978-3-642-86695-1Suche in Google Scholar

[4] W.Heisenberg: Z. Physik49 (1928) 619.10.1007/BF01328601Suche in Google Scholar

[5] P.A.M.Dirac: Proc. Roy. Soc. A117 (1928) 610; ibid. A 126 (1930) 360.Suche in Google Scholar

[6] F.Bloch: Z. Physik74 (1932) 295.10.1007/978-3-662-41138-4_1Suche in Google Scholar

[7] L.Néel: Ann. Phys. (Paris)17 (1932) 64; J. Phys. Radium 3 (1932) 160.10.1051/jphysrad:0193200304016000Suche in Google Scholar

[8] W.F.Brown, Jr.: Micromagnetism, Wiley, Interscience, New York, London (1963).Suche in Google Scholar

[9] A.Aharoni: Introduction to the Theory of Ferromagnetism, Clarendon Press, Oxford (1996).10.1063/1.881916Suche in Google Scholar

[10] H.Kronmüller: Micromagnetism and the Microstructure of Ferromagnetic Solids, Cambridge University Press (2003).Suche in Google Scholar

[11] Y.Yoshizawa, S.Oguma, K.Yamauchi: J. Appl. Phys.64 (1988) 6044.Suche in Google Scholar

[12] G.Herzer: IEEE Trans. Magn.25 (1989) 3327; ibid. 26 (1990) 1397.Suche in Google Scholar

[13] K.J.Strnat: J. Magn. Magn. Mater.7 (1978) 351.10.1016/0304-8853(78)90218-4Suche in Google Scholar

[14] J.M.D.Coey (Ed.): Rare-Earth Iron Permanent Magnets, Clarendon Press. Oxford (1996).10.1002/chin.199211311Suche in Google Scholar

[15] A.E.Clark, in: E.P.Wohlfarth (Ed.), Ferromagnetic Materials Vol. I, North-Holland Publishing Co. (1980) 531.Suche in Google Scholar

[16] M.N.Baibich, J.M.Broto, A.Fert, F.N.Van Dau, F.Petroff, P.Etienne, G.Creuzet, A.Friedrich, J.Chacelas: Phys. Rev. Lett.61 (1988) 2472.Suche in Google Scholar

[17] G.Binasch, P.Grünberg, F.Saurenbach, W.Zinn: Phys. Rev. B39 (1989) 4828.Suche in Google Scholar

[18] H.J.Richter: J. Phys. D: Appl. Phys.40 (2007) R149.10.1088/0022-3727/40/9/R01Suche in Google Scholar

[19] Z.Z.Bandic, D.Litvinov, M.Rooks: MRS Bulletin33 (2008) 831.Suche in Google Scholar

[20] H.Kronmüller, R.Fischer, M.Seeger, A.Zern: J. Phys. D29 (1996) 2274.Suche in Google Scholar

[21] D.Goll, H.Kronmüller: Naturwissenschaften87 (2000) 423.Suche in Google Scholar

[22] T.Burkert, L.Nordström, D.Eriksson, O.Heinonen: Phys. Rev. Lett.93 (2004) 027203.Suche in Google Scholar

[23] J.M.D.Coey, H.Sun: J. Magn. Magn. Mater.87 (1990) L251.10.1016/0304-8853(90)90756-GSuche in Google Scholar

[24] W.F.Brown, Jr.: Rev. Modern Physics17 (1945) 15.Suche in Google Scholar

[25] D.Goll, in: H.Kronmüller, S.Parkin (Eds.), Handbook of Magnetism and Advanced Magnetic Materials, Vol. II, John Wiley and Sons, Chichester (2007) 1023.10.1002/9780470022184Suche in Google Scholar

[26] R.Coehoorn, D.B.de Mooji, J.P.Duchateau, K.H.J.Buschow: J. Phys. (Paris) 49, C8 (1988) 669.Suche in Google Scholar

[27] A.Manaf, R.A.Buckley, H.A.Davis, M.Leonowicz: J. Magn. Magn. Mater.101 (1990) 360.Suche in Google Scholar

[28] J.Bauer, M.Seeger, A.Zern, H.Kronmüller: J. Appl. Phys.80 (1996) 1667.Suche in Google Scholar

[29] D.Goll, M.Seeger, H.Kronmüller: J. Magn. Magn. Mater.185 (1998) 49.Suche in Google Scholar

[30] D.Goll: Z. Metallkunde93 (2002) 1009.10.1515/ijmr-2002-0175Suche in Google Scholar

[31] G.Rieger, M.Seeger, H.Kronmüller: phys. stat. sol. (a)171 (1999) 583.Suche in Google Scholar

[32] H.Kronmüller: phys. stat. sol. (b)144 (1987) 385.10.1002/pssb.2221440134Suche in Google Scholar

[33] E.C.Stoner, E.P.Wohlfarth: Philos. Trans. Roy. Soc. (London)240 (1948) 599.Suche in Google Scholar

[34] H.Kronmüller, K.-D.Durst, G.Martinek: J. Magn. Magn. Mater.69 (1987) 149.Suche in Google Scholar

[35] H.Kronmüller, K.-D.Durst, M.Sagawa: J. Magn. Magn. Mater.74 (1988) 291.Suche in Google Scholar

[36] V.Neu, U.Klement, R.Schäfer, J.Eckert, L.Schultz: Mater. Lett.26 (1996) 167.Suche in Google Scholar

[37] V.Neu, A.Hubert, L.Schultz: J. Magn. Magn. Mater.189 (1998) 391.Suche in Google Scholar

[38] H.Kronmüller, D.Goll: Scripta Mater.47 (2002) 551.Suche in Google Scholar

[39] R.Fischer, T.Schrefl, H.Kronmüller, J.Fidler: J. Magn. Magn. Mater.153 (1996) 35.Suche in Google Scholar

[40] S.Liu, E.P.Hoffmann: IEEE Trans. Magn.32 (1996) 509.Suche in Google Scholar

[41] C.H.Chen, M.S.Walmer, M.H.Walmer, S.Liu, E.Kuhl, G.Simon: J. Appl. Phys.83 (1978) 6708.Suche in Google Scholar

[42] G.C.Hadjipanayis, W.Tang, Y.Zhang, S.T.Chui, J.F.Liu, C.H.Chen, H.Kronmüller: IEEE Trans. Magn.36 (2000) 3382.Suche in Google Scholar

[43] D.Goll, H.Kronmüller, H.H.Stadelmaier: J. Appl. Phys.96 (2004) 6534.Suche in Google Scholar

[44] H.Kronmüller, D.Goll: Scripta Mat.48 (2003) 833.Suche in Google Scholar

[45] D.Goll, I.Kleinschroth, W.Sigle, H.Kronmüller: Appl. Phys. Lett.76 (2000) 1054.Suche in Google Scholar

[46] A.E.Ray: J. Appl. Phys.55 (1984) 2094.10.1063/1.333575Suche in Google Scholar

[47] R.Gopolan, X.Y.Xiong, T.Ohkubo, K.Hono: J. Magn. Magn. Mater.295 (2005) 7.Suche in Google Scholar

[48] H.H.Stadelmaier, D.Goll, H.Kronmüller: Z. Metallkunde96 (2005) 17.Suche in Google Scholar

[49] E.Lectard, C.H.Alibert, R.Ballou: J. Appl. Phys.75 (1994) 6277.Suche in Google Scholar

[50] H.Kronmüller, D.Goll: Physica B319 (2002) 122.Suche in Google Scholar

[51] H.-R.Hilzinger, H.Kronmüller: Phys. Lett. A51 (1975) 59.Suche in Google Scholar

[52] H.Kronmüller, K.-D.Durst, W.Ervens, W.Fernengel: IEEE Trans. Magn.20 (1984) 1569.Suche in Google Scholar

[53] H.Kronmüller, D.Goll: J. Iron Steel Res. Int., Suppl. 1, 13 (2006) 39.10.1016/S1006-706X(08)60159-4Suche in Google Scholar

[54] H.Kronmüller, D.Goll: J. Magn. Magn. Mater.272 (2004) e319.10.1016/j.jmmm.2003.11.384Suche in Google Scholar

[55] A.G.Popov, A.V.Koolev, N.N.Shchegoleva: Phys. Met. Metallogr.69 (1990) 100.Suche in Google Scholar

[56] J.-D.Thiele, S.Maat, E.E.Fullerton: Appl. Phys. Lett.82 (2003) 285.Suche in Google Scholar

[57] R.H.Victora, X.Shen: IEEE Trans. Magn.41 (2005) 2828.Suche in Google Scholar

[58] J.P.Wang, W.Shen, J.Bai: IEEE Trans. Magn.41 (2005) 3181.Suche in Google Scholar

[59] J.Dobin, J.Richter: Appl. Phys. Lett.89 (2006) 062512.10.1063/1.4767989Suche in Google Scholar

[60] D.Suess: J. Magn. Magn. Mater.308 (2007) 183.10.1016/j.jmmm.2006.05.021Suche in Google Scholar

[61] D.Goll, S.Macke, H.N.Bertram: Appl. Phys. Lett.90 (2007) 172508.Suche in Google Scholar

[62] D.Goll, G.Schütz, H.Kronmüller: Physica B372 (2006) 273.10.1021/ja965922+Suche in Google Scholar

[63] D.Goll, H.Kronmüller: Physica B403 (2008) 1854.10.1021/ja965922+Suche in Google Scholar

[64] H.Kronmüller, D.Goll: Physica B403 (2008) 237.Suche in Google Scholar

[65] G.Asti, M.Solzi, M.Ghidini, F.M.Nevi: Phys. Rev. B69 (2004) 7440.Suche in Google Scholar

[66] D.Goll, A.Breitling: Appl. Phys. Lett.94 (2009) 052502.Suche in Google Scholar

Received: 2009-3-4
Accepted: 2009-3-13
Published Online: 2013-06-11
Published in Print: 2009-05-01

© 2009, Carl Hanser Verlag, München

Heruntergeladen am 2.1.2026 von https://www.degruyterbrill.com/document/doi/10.3139/146.110092/pdf
Button zum nach oben scrollen