8 Caizer, C. and Hrianca, I. (2003) Eur. Phys.
J., 31, 391–400.
9 Vollath, D., Szab o, D.V., and Willis, J.O.
(1996) Mater. Lett., 29, 271–279.
10 Szab o, D.V. and Vollath, D. (1999) Adv.
Mater., 11, 1313–1316.
11 N eel, L. (1949) C. R. Acad. Sci. Paris, 228,
664–666.
12 Aharoni, A. (1964) Phys. Rev. A, 132,
447–440.
13 Elmore, W.C. (1938) Phys. Rev., 54,
1092–1095.
14 Shliomis, M.J. (1974) Sov. Phys.-Usp., 17,
153–169.
15 Vollath, D. (2010) Adv. Mater., 39, 410–4415.
16 Lawaczeck, R., Menzel, M., and Pietsch, H.
(2004) Appl. Organometal. Chem., 18,
506–513.
17 Gschneidner, K.A. Jr. and Pecharsky, V.K.
(2000) Annu. Rev. Mater. Sci., 30, 387–429.
18 Kneller, E.F. and Hawig, R. (1991) IEEE
Trans. Magn., 27, 3588–3560.
19 Herzer, G. (1997) in Handbook of Magnetic
Materials, vol. 10 (ed. K.H.J. Buschow),
Elsevier, Amsterdam, p. 415.
20 Zeng, H., Jing, L., Liu, J.P., Wang, Z.L.,
and Shouheng, S. (2002) Nature, 420,
395–398.
21 Zeng, H., Jing, L., Wang, Z.L., Liu, J.P.,
and Shouheng, S. (2004) Nano Lett., 4,
187–190.
22 Yi, J.B., Ding, J., Zaho, Z.L., and Liu, B.H.
(2005) Appl. Phys., 97, 10K306.
23 Lee, J.-H., Jang, J.-T., Choi, J.-S., Moon, S.
H., Noh, S.-H., Kim, J.-W., Kim, J.-G., Kim,
I.S., Park, K.I. and Cheon, J. (2011) Nat.
Nanotechnol., 6, 418–422.
24 Zhao, Y.W., Ni, C.Y., Kruczynski, D.,
Zhang, X.K., and Xiao, J.Q. (2004) J. Phys.
Chem. B, 108, 3691–3693.
204j 8 Magnetic Properties of Nanoparticles