HOME    |    BROWSE    |    SEARCH    |    SUBSCRIPTION   |    SUBMISSION    |    REGISTRATION

Quick Search:
Author: Title/Abstract: Vol./No: Page:
PTP Online Top > Volume 11 (1954) > Number 4
| Next Article >

Prog. Theor. Phys. Vol. 11 No. 4 (1954) pp. 425-436

[ Full Text PDF : FREE ACCESS (894K) ]

On the Magnetic Anisotropy Energy of FeF2

Kazuo Niira and Takehiko Oguchi

Physics Department, Tokyo Institute of Technology Oh-okayama, Tokyo

(Received November 24, 1953)

Abstract:

The magnetic anisotropy energy of FeF2 deduced from the measurement of Stout and Matarrese on the magnetic susceptibility of the single crystal has a large value of 5.3(M/M0)2 cm-1 per Fe ion, where M, (M0) is the magnetization, (the one at 0° K), and this cannot be interpreted in terms of the magnetic dipole-dipole interaction between Fe ions in the crystal. The origin of the anisotropy energy can be explained by the spin-orbit interaction in the Fe++ ion. We have calculated the second order perturbation energy due to this interaction, taking account of the crystalline Stark effect of the ground state of the Fe++ ion. The crystalline field can be determined by the anisotropy of the g-factor deduced from the experiment of Stout and Matarrese. The calculated anisotropy energy per ion due to the spin-orbit interaction is 7.6 (M/M0)2 cm-1, in good agreement with the observed value.


URL : http://ptp.ipap.jp/link?PTP/11/425/
DOI : 10.1143/PTP.11.425

[ Full Text PDF : FREE ACCESS (894K) ] Citation:

References:

  1. J. W. Stout and L. M. Matarrese, Rev. Mod. Phys. 25 (1953), 338[APS].
  2. T. Moriya and K. Yosida, Prog. Theor. Phys. 9 (1953), 663[PTP].
  3. F. Keffer, Phys. Rev. 88 (1953), 608[APS].
  4. R. A. Erickson, Phys. Rev. 90 (1953), 779[APS].
  5. J. H. Van Vleck, J. Chem. Phys. 9 (1941), 85[CrossRef].
  6. P. W. Anderson, Phys. Rev. 79 (1950), 705[APS].
    J. S. Smart, Phys. Rev. 86 (1952), 968[APS].
  7. J. H. Van Vleck, The Theory of Electric and Magnetic Susceptibilities, Chapter 7 (Oxford Press, 1932).
  8. W. Gordy, W. V. Smith and R. F. Trambarulo, Microwave Spectroscopy (John Wiley and Sons, 1953), p. 225.
  9. M. H. L. Pryce, Phys. Rev. 80 (1950), 1107[APS].
  10. F. Seitz, Modern Theory of Solids (McGraw-Hill, 1940), p. 93.
  11. R. Becker and W. Döring, Ferromagnetismus (Springer, 1939).

[PTP HOME] [BROWSE] [SEARCH] [SUBSCRIPTION] [SUBMISSION] [REGISTRATION]

Copyright © Progress of Theoretical Physics 2013 All rights reserved.